Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
White Mountain Correspondence Memos 1992
Steve State of Alaska DN Walter J. Hickel, Governor Alaska Energy Authority A Public Corporation February 27, 1992 Mr. Tim Towarak Director of Facilities Bering Straits School District P.O. Box 225 Unalakleet, AK 99684 SUBJECT: Savoonga, Elim, Diomede, White Mountain Waste Heat Dear Mr. Towarak: Thank you for your correspondence of February 11, 1992, regarding the operation of the waste heat system in Savoonga. Steve Stassel of my staff conducted a site inspection the week of February 10th to repair a leak in the arctic pipe and to determine the operation of the system (see attached trip report). Based on Mr. Stassel's observations that (1) the AVEC radiator fans do not run, and (2) the waste heat temperatures and pressure are within design parameters, we feel that the waste heat system is operating properly. As Mr. Stassel explained to you on the phone Tuesday February 25th, the school heating demand in mid-winter is about four times greater than what the AVEC plant is capable of providing in the form of waste heat. Consequently, unless the AVEC plant electric load increases dramatically (3 or 4 times) or the school complex heating load is substantially reduced, the percentage of fuel saved in Savoonga by the waste heat (WH) system will never compare with the percentage of fuel that is saved in Elim. Although the Elim WH system provides a larger percentage of the school's heating load than does the Savoonga WH system, the Savoonga WH system provides about twice as much heat as the Elim WH system. While the waste heat system in Savoonga is operating correctly, it provides less heat than is represented in our Waste Heat Sales Agreement of 9/1/87. This is due to AVEC using more energy efficient generation equipment as well as AVEC using more heat for plant heating than previously. Based on Mr. Stassel's observations of the system operation and an updated computer model of the system, the amount of waste heat available to the school has been reduced from 25,956 gallons to 16,774 gallons for the period from September 1991 through May 1992. (There is QO PO.BoxAM Juneau, Alaska 99811 (907) 465-3575 PO. Box 190869 704 East Tudor Road =Anchorage, Alaska 99519-0869 (907) 561-7877 approximately 5,000 gallons of waste heat available during the period June through August.) In light of the reduced fuel savings, we propose to amend our WH Sales Agreement to reflect the lower fuel savings (see amended agreement attached). If the school district agrees to the amended waste heat sales agreement, please sign and return it, and we will re-invoice the district for the outstanding bills in accordance with the new agreement. It is imperative that the Energy Authority continue to receive waste heat revenues in order to continue to maintain and upgrade the waste heat systems. All work that AEA staff performs on the WH systems is funded through the revenues received. The Energy Authority has been in the process over the past several years of upgrading the waste heat arctic piping systems of the AEA owned systems. Savoonga is one of the last that has not been upgraded. In light of the condition of the arctic piping, we propose to retrofit the piping this fall. This could entail "sleeving" the existing arctic pipe with a "plastic" carrier pipe, disassembling the piping and welding the joints, or replacing the pipe entirely. At this point we are not certain which course of action we will take. Prior to expending the funds to perform the upgrades, however, we need to ensure that the school district desires to continue to utilize waste heat at Savoonga. We also propose to install a BTU meter at the school to accurately meter the amount of heat received by the school. This would prevent the problem we just encountered where the projected heat availability was no longer correct. As you know, our sales agreement includes a 50% multiplier on projected savings due to our inability to verify the actual quantity of heat provided. This low multiplier was selected to ensure that the district receives fair value for its money spent for waste heat even if the model is somewhat inaccurate. If a meter is installed, we would propose to bill for 70% of the metered quantity of waste heat received throughout the year. The value of the waste heat would be based on the price of fuel to AVEC (currently $1.064/gallon). This would ensure a substantial and consistently accurate savings to the district. Please let us know if this is acceptable to you. Mr. Stassel also inspected the Elim waste heat system during his trip to Savoonga (see attached trip report). The Elim system is working well. Mr. Stassel explained the system operation to John Garrison (BSSD Maintenance). The antifreeze mixture was tested and found to be only 23% ethylene glycol. We request that the district add about 25 gallons of Dowtherm SR-1 to the arctic pipe loop to provide burst protection down to -60F. Also, the air should be vented from the piping between the elementary and high schools (air can be heard gurgling in the piping where the arctic pipe drops below grade at the high school). While in the area, Mr. Stassel stopped in White Mountain to take a first hand look at the school facilities and the power plant. The White Mountain power plant is capable of providing about 10,000 gallons of waste heat to the High School and Gym. We estimate the project would cost between $80,000 and $90,000 to install, assuming AEA provides the design and construction management assistance, and the project is constructed using local force account labor. The Energy Authority does not have funding to proceed with the project at this time. In addition, the City is interested in relocating the power plant to the other side of town and using waste heat to heat the City shop if the school district does not use the waste heat. Please let us know if the district is interested in funding the project. If not, we will inform the City so it can proceed with its plans to relocate the power plant. The Energy Authority installed an Arctic Pak power plant module in Diomede last November. The module is equipped with waste heat, and the arctic piping from the school and washeteria was connected to the module. Due to space limitations in the module, however, a waste heat circulation pump was not installed. In order to make the system operational, a circulating pump needs to be installed in the arctic piping at the school, and the piping needs to be charged with glycol. We recommend using 35% to 40% Dowfrost Propylene glycol rather than an ethylene glycol due to the health hazards related to handling and spills. If you require assistance in sizing the pump or determining the quantity of glycol required, please let us know and we will be happy to help. If you have any questions please call Steve Stassel or Brian Gray of my staff at 1- 800-478-7877, or 561-7877. 7 avé Denig-Chakro! Director/Rural Programs SS/dde cc: Brian Gray, Alaska Energy Authority FROM: Denig-Chakroff, David TO: Smith, Gary DATE: 01-23-92 TIME: 15:20 cc: Gray, Brian Jensen, Hans White, Susan SUBJECT: | White Mountain’) PRIORITY: ATTACHMENTS: Tom Gray, Mayor of White Mountain called. He said after we finished the work on the electric system out there he was told we would be back to balance the system when school was in session, but that has never happened. He seemed to think we had made arrangements to come out once, and the school’s electrical person was on hand but we never showed up. He feels the system is badly in need of balancing and that this should be done before we get too much more daylight and the problems start disappearing. He would like us to schedule a visit and call Lucy Ashenfelter (638-3411) and let her know when we will be out. We also would need to coordinate with the Bering Straits School District before the visit. Can we get someone out to balance the load on a CRM visit? I told Tom someone would get back to Lucy as soon as possible. @ Date: 5-30-91 5:26pm From: GSmith:Anch:AEA To: DaveDC cc: Gary,Emily Subj: Misc Dennis Thomas and the Chief of Lime Village are stopping by tomorrow to discuss the potential project in Lime Village. Discussed with both Dept of Ed and Bering Straits School District the idea of the school paying for the White Mountain waste heat system. DOE said that they have no capital money. BSSD said that in general the idea sounded ok, but that they would like to see a proposal. I will write something up next week if possible. This would be fy92 "080" money. a rT = QO A > Z 2 < z Date: 2/6/89 To: Dominic Costaneo Contracts Officer Through: Donald L. Shira Director, Program Development & Facilities Operations Jerry Larson Manager of Rural! Projects From: Peter N. Hansen Rural Systems Engineer Piease saciicit bids for the the ftollawing items, each expected tc exceed the jimit for procurement withoutwritten solicitation. ITEM A it ea. compiete diese! generator set rated at 140 kw intermittent capacity at 1200 rpm with the faltawing equipment, features» and performance specitications: @. Steel base trame mounted on vibration isolators or on Caldyn ST2100 mounting pads. b: 24 VDC electric system tor D.C. equipment and engine starting. (No alternator required.) Unit tao be supplied with 10 feet tans battery cables, attached to ground and starter. c. lectronic governor tor iocad sharing and speed control, Woodward 2301; please note the follawing requirements: 1. Actwator to be unit mounted. Wiring to be terminated in instrument panel. es sao OO) load sharing and speed control module to be supplied logse. AC and OC input and scutput requirements ta be terminated in the instrument pane!. 3. Idle/run switch tao be mounted in instrument pane!. 4. Supply loose trequency adjust potentiometer to trim engine be speed; knob-type adjust with tack, 10 turn minimum. d. Voltage regulator to regulate senerator terminal voltage; note the following requirements: : 4 supply regulator loose. 2. Supply loose voltage adjust rheostat, knob-type, +/-5%. Acceptable valtage regulator manufacturers: Kato and Bassier. 2 Racor tuel filter/water separator. + Pulley guard. Ss. Detached Instrument pane! with gauges tor engine coolant temperature, engine lubricatian ail temperature, engine lubrication oil pressure, fue! oi! pressure» turbo boost pressure (turbo-charged engines only), oil pressure activated hourmeter, and exhaust gas temperature meter with compatible probe. Also: Engine cantral module with OFF, RUN, and start and shut-down logic for tow oi! pressure, low oil level», high coolant temperature; and low coolant level. Supply» install and make operationa! the compete instrument pane! using appropriate sensors. Supply loose *Mur phy” low coolant level gauge. This instrument panel must be supplied with sensor leads to allow for mounting 2’ above’ the generator center line and 2? to the left af the generator center!ine>, flush with the rearmost point. ..sn the generator. Supply loose floor mounted saddie-type frame. mW 2- or 4-cycle diese! engine, wet-sleeve, replaceable type,» water cooled, with gear driven water pump,» normally aspirated, turbc- charged» or turbo-charged and intercoosled. One-circuit cooling system. (No separate intercaocler caaling system al!lawed.) Unit mounted water jacket heater with thermostat, plumbed and wired with 4’ pigtail. Kim Hatstart mode! MB110, 120 valt», or equal. Je 8’tlexible fuel hoses, type FC300 or equal» connected to engine supply and return points. h . Critical grade muftler, side in» end outs with all necessary mounting hardware for root mounting abave the engine. i necessary hardware shal! be included», including root penetration, N 1. Terminate power input sensing and tie!ld in instrument paneli weather shield» boalts, gaskets, companion ends on 18” stainless steel flex adjacent ta the engine outlet and no less than 5S’ of tubing to make up the vertical throusgh-roof connection to the muffier. Synchronous generator, single bearing, 12 ‘ead, reconnectable Class F insulated,» wired for 120/208 Valts 3-phase and meeting NEMA MG-1. Excitation shall be solid state with a permanent Magnet generator pilot exciter. Windings shal! be form-wound and winding pitch shall be 2/3. The generator shal! be sized for a maximum of 80 degrees C. temperature rise at the engine’s actual maximum intermittent gutpyut at 1200 rpm as measured on the generator output leads. The actual maximum intermittent output is subject to verification through I|oad testing prior to acceptance. Actual maximum intermittent output and the actual temperature rise at this output shal! be displayed on the generator data plate. Supply generator with unit mounted circuit breaker with shunt trip devices compiete and wired to trip breaker in case of any engine fault, and complete tao accept trip-signa!l for reverse and aut if phase conditions. Supply and install appropriate current transformers and terminate wiring in instrument pane!. Acceptable generator manufacturers: Kato», Newase-Stamford, Marathon. Supply the tollowing additional items loose: 1. Voltmeter/ammeter selector switch; 4-position type far tine current and /ine-line voltage reading. 2. Ammeter, 2% accuracy; 600 amps scale. 3. Field circuit breaker. 4. Wilmar mode! 710X reverse power relay. 5S. Wilmar mode! 1810DBX 120 volt paralleling relay. &. 3 ea. sets of fuel filters and gaskets. 7. Ss ea. sets of lubrication oil. tilter elements. 8. 2 ea. sets of air filter elements. 9. 2 ea. sets of V-belts» if used. k. Performance requirement: For any addition of load up to and ineluding 140 kw» the voltage dip shall not exceed 10% of rated valtage. The valtage sha!! recover to and remain within the steady state band in not more than 2.0 seconds. For any addition of load up to and including 140 kw» the trequency dip shall not exceed 10 cycles. The trequency shal! recover to and remain within the steady state band in not more than 5.0 seconds. '. Fuel economy requirements: The fue! consumption for this unit must nat exceed the followings values for the corresponding Iocads: 60kw: 33 !bs./hr. 100kw: 49 Ibs./hr. 140kw: 64 Ilbs./hr. In order for a bid to be acceptable» the vendor must certify through manufacturer’s litterature and/ar certified tests performed by the vendors that the equipment will meet the fuel economy requirements and oather performance specifications as outlined in this IFB. {. Performance testing Prior to delivery» a pertormance test must be performed by vendor persannel and witnessed by Power Authority personnel. During this test» the vendor must demonstrate, that al! fuel consumption and performance specifications outlined in this IFB are met. ns and with The test must be pertormed under the followin the following accessories: wo Water pump Air cleaner Mufttier SAE 30 tiubrication oil must be used and a sample ost the tubricating cil must be provided ta Power Authority persanne! at the end cof the test. No radiator fan needs ta be attached. The-use-ot-e -cooling-pond-or-tank wiit.be permitted. Diesel #2 with a higher heating value of 19,590 Btu/tb. is used: alternatively, if a ditterent fue! is used» the fue! economy wi! ! be calculated based on the higher heating value af the fue! used. 4 sample of the fuel used must be provided to Power Authority personnel fallowing the test. Voltmeters, amperemeters, frequency meters, and power tactor meters used during the test will be provided by the Power Authority. if the unit tails to meet the pertormance specifications and if the vendor elects to question the accuracy af one or more af these meters, the Power Authority will arrange to have an = independent laboratory calibrate the equipment in questian. Unitess the inaccuracy of the test equipment in question can be shown to have caused the unit to fail tao meet the performance speciticatians, the test results will stand, and the vendor wil! be required to pay all costs associated with the calibration and any additiona! tests subsequently required aon the unit. If the unit tails to meet the performance specifications, additional tests can be made at vendor request fa!llowing necessary moditications, adjustments, etc. Any additional cost incurred by the Power Authority as a result af such additional! tests will be the responsibility of the vendor. Such extra costs will inelude>» but will not be timited ta: Ticket cancellatian and re-bookins tees,» per diem» and staff salaries for this purpose established at $250 per employee per day. In lieu of adjustments,» modifications and additional tests tor minor performance discrepancies» the Power Authority reserves the right to negotiate price reductions and/or the addition of alternate features. ITEM B: 4 1 ea. complete diesel generator set rated at 140 kw intermittent capacity at 1800 rpm with the following equipment, features» and pertormance specifications: a. Stee! base frame mounted on vibration isolators or on Caldyn ST2100 mounting pads. b, m 24 VDC electric system tor D.C. equipment and engine starting. (No alternator required.) Unit ta be supplied with 10 feet tans battery cables, attached to ground and starter. : ectronio’’ sovernortor toad sharing and speed.contral»s..Woodward 1i please note the tallowing requirements: 1. Actuator to be unit mounted. Wiring to be terminated in instrument panei. Ai -Z30t load sharing and speed contro! module to be supplied loose. AC and DC input and output requirements to be terminated in the instrument panel. 3. Idle/run switch to be mounted in instrument pane!. 4. Supply loose frequency adjust potentiometer to trim engine speed; knob-type adjust with lock, 10 turn minimum. d. Voltage resulator to regulate generator termina! voltages note the tollowing requirements: 4 supply regulator loose. 2. Supply !oose voltage adjust rheostat, knob-type, +/-5%. a 1. Terminate power input sensing and tield in instrument panel; Acceptable voltage resuiator manufacturers: Kato and Bassler. e. Racor tue! filter/water separator. Pulley guard. S. Detached instrument pane! with gauges for engine coolant temperature; engine lubrication ail temperature; engine lubrication oil pressure» fuel oi! pressure, turbo boost pressure (turba-charged engines only); oil pressure activated hourmeter> and exhaust gas temperature meter with compatible probe. Also: Engine control madule with OFF; RUN; and start and shut-down logic for !ow oil pressures lIow oi! levels high coolant temperature, and low coolant level. Supply, install and make operational the compete instrument pane! using appropriate sensors. Supply !oose *Murphy” tow coolant !eve! gauge. This instrument pane! must be supplied with sensor teads to allow for mounting 2’ above the generator center line and 2’ toa the left af the generator centerline, flush with the rearmost point on the generator. Supply loose flacgr mounted saddle-type trame. ak 2- ar 4-cycle diese! engine» wet-slteeve, replaceable type» water coogled; with gear driven water pump; normally aspirated, turba- charged> or turbo-charged and intercooled. One-circuit ecoolin system. (Nc separate intercocler cas!ing system al!awed.) Unit mounted water jacket heater with thermostat, plumbed and wired with 4’ pigtai!. Kim Hotstart mode! MB110, 120 volt, or equal. ds B’flexible tue! hoses; type FC300 or equal» connected to engine supply and return points. h. Critical grade mufflers side in» end out» with all necessary mounting hardware for roof mounting above the engine. Al! necessary hardware shal! be included» including roof penetration, weather shield» bolts» gaskets; companion ends an 18” stainless stee! tlex adjacent to the engine sut!iet and no less than 5S’ of tubing to make up the vertical! through-root connection ta the ynchronous generator, single bearings» 12 tead», reconnectable tass F insulated» wired for 120/208 Valts 3J-phase and meetings NEMA MG-1. Excitation shal! be solid state with a permanent Magnet generator pilot exciter. Windings shal! be form-wound and winding pitch shal! be 2/3. The generator shal! be sized for a maximum of 80 degrees C. temperature rise at the engine’s actual maximum intermittent output at 1800 rpm as measured an _ the generator cutput leads. The actual maximum intermittent output is subject to verification through Ioad testing prior to acceptance. Actual maximum intermittent output and the actual temperature rise at this output shal! be displayed on the generator data plate. Supp!» generator with unit mounted circuit breaker with shunt trip devices complete and wired to trip breaker in case of any engine fault, and complete to accept trip-signa! for reverse and aut Ef phase conditions. Supply and instal! appropriate current transformers and terminate wiring in instrument pane!. Acceptable generator manufacturers? Kato> Newase-Stamtord, Marathon. 3 Supply the following additional items !oose: ; oltmeter/ammeter selector switch: 4-positian type fer ! urrent and l|ine-!ine voltage readings. » Ammeter;s 2% accuracy, 600 amps scale. feld circuit breaker. : ilmar model 710X reverse power relay. ilmar mode! 1810DBX 120 volt parallelling relay. ea. sets af fuel filters and gaskets. ea. sets of lubrication sil tilter elements. ea. sets of air filter elements. ea. sets of V-belts, if used. WON MPU NO Pe NNGGQEE THs < k. Performance requirement: For any addition of load up to and including 140 kw, the voltage adthpewshatt not-exceed 10% of rated.valtage....The...valtage shal! recover to and remain within the steady state band in not more than 2.0 seconds. For any addition of !cad up to and inc!uding 140 kw, the frequency dip shall not exceed 10 cycles. The frequency shall recaver ta and remain within the steady state band in not more than 5.0 seconds. !. Fuel ecanamy requirements: The tue! o £ 3 wu nsum e D n for this unit must not exceed the fol! values far th n ding loads: 60kw: 33 Ibs./hr. 100kw: 49 lbs./her. 140kw: 64 !bs./hr. In order for a bid tao be acceptable; the vendor must certify through manutfacturer’s litterature and/or certified tests performed by the vendor, that the equipment will meet the fue! economy requirements and other pertormance specitications as cutlined in this IFB. !. Performance testing Prior to delivery» a performance test must be performed by vendor personnel and witnessed by Power Authority persanne!l. During this test, the vendor must demonstrate, that a!! fuel consumption and performance specifications outlined in this IFB are met. The test must be performed under the following conditions and with the tallaowing accessories: SAE 30 !ubricatio oi! must be used and a sample oat the lubricating oil must be provided tao Power Authority persanne! at st No radiator fan needs ta be attached. The use of a cooling pond or tank will be permitted. Diesel #2 with a higher heating value of 19;590 Btu/Ib. is used: alternatively, if a different fue! is used, the fue! economy wi! ! be calculated based an the higher heating value of the fue! used. A sample of the fue! used must be provided to Power Authority personne! following the test. Voltmeters, amperemeters, frequency meters,» an power factor meters Used “during “thee test@witt be ~provided-—by—-the....Pawer Authority. If the unit fails to meet the performance specifications and if the vendor elects to questian the accuracy af ane ar more af these meters, the Power Authority wil! arranse to have an independent laboratory calibrate the equipment in gquestian. Untess the inaccuracy ot the test equipment in question can be shown ts have caused the unit ta fai! ta meet the performance specitficatians: the test resu!ts wil! stand, and the vendor wil! be required to pay all casts assaciated with the calibration and any additiana! tests subsequently required on the unit. If the unit fails toa meet the performance speciticatians; additicna! tests can be made at vendor request following necessary modifications, adjustments, etc. Any additiana! cost incurred by the Power Authority as a result of such additiona! tests wil! be the responsibility of the vendor. Such extra costs wil! include; but wil! not be limited to: Ticket cancellation and re-booking ao tees; per diem» and statt salaries for this purpose established at $250 per emp!layee per day. jona! tests. for ity reserves the negotiate price reduc ns and/or the .addition of e features. A or ITEM B> however; the Power Authority reserves the right purchase either item or none at all at the Power Authority discretian. NOTE: The Alaska Power Authority intends to purchase either ITEM t ’ Delivery required: First commercia! barge available to White Mountain, Alaska during the spring af 1989. Delivery: F.o.b. White Mountain, Alaska. SB 3075610689 HUNTLEY & ASSOC. FACSIMILE TRANSMISSION Huntley & Associates 3727 Spenard Road Suite 2 Anchorage, Alaska 99503 Phone: 907-563-5666 Facsimile: 907-561-0689 O8/01788 13:54 P.@1 (Yabes ase Date: Aug 1, 1988 _ Tite eee From: Chuck Huntley/Kato Representative ___9 _ PAGES TO FOLLOW (not including cover sheet) Message Reference: 4P2 - |188/SN * 87907-2/ White Mountain A) Efficiency: 4/4 92.1 3/4 91.0 172 = 68.3 B) Regulator: KC7 760 C) MFG Date: 4/82 D) Performance Data: Enclosed 60 KW, 75 KW, 1200 R.P.M., per your request. KAMAG 18 Performance Data 4P2-1188 125kW 80°C Ri__ 60 Hz B 9075610689 HUNTLEY & ASSOC. 98781788 13:55 P.@2 Section 2000 an 7-41-83 Description — "Maximum Maximum Resistances at 25° C Total (%) Individual (%) Exciter Fleld Harmonic Content “20 | , 1.8 _ Rotating Field No Load L-L a Stator . ( Waveform ae . — or Deviation Factor 3.0 Telephone Influence Factor = 50% by 1960 Weighting |No Load L-L fe Rejection = 36,615 BTU/Hr. Excitallon Requirements : : Load Exciter Field Amps No Load [ “s |Full Load BP, 1.0 | | Symbol Machine Conetent at 480 Volts “Value [Xd Direct Axis Synchronous Reactance [1.506 PLU. Xd “Direct Axis Transient Reactance 183 PU, x"d Direct Axis, Sub-Transient Reactance 076 PLU. ee Pea Pu. | XX" - _ Quadrat ! re ‘Axig Sub-Transient Reactance . “1068 P.U. _ Xo | Zero Sequence Reactance 008 P.U. | oo? Xe : __ Negative Sequence Reactance ~ (071 P.U. XL Leakage Reactance - “041 PLU. . i Td'o . Field Circuit with Armature Circuit Open 1.300 Seo. : | Tt | Field Circuit with Armature Circuit Shorted | .158 Sec, va Armature Circuit (Asymmetrical Short) | _007 Sec. | $0 , , | | | | } ' ! | } 480 —) La | i | | **DIP | | | 500 600 SKVA KATO ENGINEERING fr ype B 9075616689 HUNTLEY & ASSOC. 68701788 13:55 P.G3 QUOTATION General Offices, KATO ENGINEERING gm ae d Drive RELIANCE ELECTRIC North Mankato, Minnesota 56002 507-625-4011 TLX 29-0786 FAX 507-345-2798 cH-80 Quotation No, _—__ 1S Aene nO RES ena eeee nee TO Alaska Power Authority Date; ._7/27/88 — 701 Bast Tudor Rd- Anchorage, AK 99519 Attention; _ Petes Hansen Your Relerence: __White Mountain We are pleased to quote you the following DESCRIPTION {TEM} QUAN. BRUSHLESS REVOLVING FIRLD GENERATOR, WITH A DIRECT CONNECTED ROTA'ING BRUSHLESS EXCITER, IN ACCORD WITH THE FOLLOWING SPECIFICATIONS: GENERATOR DATA: Code: 6P2-0688 Type: 1200 RPM, 6 Pole Electrical Rating: 60 KW, 75 KVA, 120/208, 277/480 3 Phase, 12 Leads, 60 HZ Temperature Rise: 40/80°C Duty: Continuous Bearing: Ball Insulation: F Enclosure: Open-Dripproof Weight: 11504 THE GENERATOR WILL BE OF THE SINGLE BEARING TYPE. IT WILL HAVE AN ADAPTOR AND DISC TYPE COUPLING SUITABLE FOR DIRECT CONNECTION TO THE STANDARD SAR BELLHOUSING OF A STANDARD INDUSTRIAL ENGINE. IN THE EVENT OF AN ORDER, THE SPECIFIC SAE BELLHOUSING AND FLY- WHELL DATA IS TO BE PROVIDED BY THE CUSTOMER. Voltage Regulator Single Phase Sensing with KCR 360 $5,064.00 + 1% Regulation suipment:__ 12-14 __ weeks after receipt of formal purchase order “Price Escalation All orders shipped 90 days beyond a published KATO ENGINEERING pelos nero will be subject to a maximum increase of 2% per A DIVISION OF RELIANCE ELECTRIC CO. mon TERMS: 1% 1§ days: net 30 days subject to credit approval. Quota- tion firm tor 45 days and subject to terms on reverse aide By: Form KEOSE2 Chuck Huntley B 9075618689 HUNTLEY & ASSOC. O8/G1788 13:56 P.64 QUOTATION General Offices KATO ENGINEERING t +4 ite gon d Orive RELIANCE ELECTRIC North Mankato, Minnesota 56002 507-625-4011 TLX 29-0786 PAGE 2 FAX 507-345-2798 Quotation No. — CH-B8015 TO Alaska Power Authority Date: 7/27/88 7 701 East Tudo . aaa: AK 99519 Attention; Peter Hansen Your Reference; _White Mountain We are pleased to quote you the following DESCRIPTION Item #2: 6P2-8050 $5,600.00 75 KW, 1200 RPM, 120/208, 277/480 With Basler KCR 360 SHIPMENT: wank after receiot of formal purchase ordar. “Price Escalation: All orders ahipped 90 days beyond a published KATO ENGINEERING price increase will be subject to a maximum increase of 2% per A DIVISION OF RELIANCE ELECTRIC CO. month.” TERMS: 1% 15 days: net 30 days subject to credit approval. Quota- tion firm lor 45 days and subject to terma on reverse side By: Form KEQS8) DATE: REPLY TO ATTN OF: SUBJECT: To: (Janie. mah Ul (D STATES GOVERNMENT memorandum February 20, 1987 Operation and Maintenance Consultant Alaska Area Native Health Service .°4 NATIVE pe, Refer to: ALEHIEB alive HEALTH SERVICE ACK Ave : Dryer Study in os Box 65 a ye NATIVE HEALTH SERVICE ATIN: KENNE]} 01 © STREET ANcHon srl SUN . 701 © STREET, BOX 65 FOR THE RECORD ATTN: KENNETH SUN ANCHORAGE, ALASKA 99512 aN (22-265 RECEIVED f Ten months ago I was made aware of a performance problem with hydronic 4s\ dryers installed in rural Alaskan communities. With the encouragement of Mr. Bill Mace, I have researched hydronic dryer performance. Mr. Doug .57 SEP 16 pi2 si Goblirsch and I then constructed an alternative oil fired forced air - furnace dryer combination. It is possible to improve the performance of the hydronic dryer to the level of the commercial natural gas dryers in Anchorage laundromats. An oil fired forced air furnace and dryer combination can also be assembled to obtain equivalent performance. GE, ALASKA 99573 ana The following recommendations and comments are based on conversations with the dryer manufacturer, the dryer coil manufacturer, information from the American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE) Guide and Data Book (1967), data taken from dryer test runs in Brevig Mission, an Anchorage laundromat, and the Upper Yard (PHS Shop, Anchorage). The comments based on dryer test data trends are made with consideration given to data accuracy and variations in the test environment. The dryer test evaluation is based upon the rate at which water was removed from a 20 lb. load in the first 20 minutes of drying. Hydronic Dryers: The Hoyt Windsor I dryer is the most common dryer found in village washeteria facilities. The performance of the dryer is controlled by the temperature and the volume of the air flowing through the tumbler. These two factors are influenced by the temperature and volume of hydronics fluid flowing through the coil, the dryer fan and the dryers air ducting (see photos), the air to air heat exchanger, and the dryer exhaust ducting. Increasing the hydronic flow rate through the coil increased the drying rate slightly. The ASHRAE handbook indicated with a typical hot water heating coil, the heat emission characteristic will decrease 10% with a 50% change in flow rate. This is substantiated by a computer analysis of the coil by the coil manufacturer. Going from 5 gpm to 10 gpm would only increase the temperature rise by 6%. A minimum fluid flow of 10 gpm is needed to insure a turbulent flow in the coil tube. The manufacturer does not specify a flow rate. An optimum flow of 15 to 20 gpm is recommended (see figures 1 and 2). Aha Yontce re fp yn C a yr Akow Le; L, cA ( ou Js OPTIONAL FORM NO. 10 1 oC } - (REV. 1-80) J l 1 J GSA FPMR (41 CFR) 101-11.6 5010-114 & G / l } C 2 se US.G.P.O: 1986 -491-248/20641 The use of propylene glycol should also be avoided where possible. A 50/50 plea water solution will reduce heat transfer capacity of the coil up to 0%. Hydronics fluid should enter the bottom of the coil. This produces the greatest mean temperature difference between the hydronic fluid and air and thus the greatest heat transfer (see figure 3). The air to air heat exchanger on the dryer consists of a 12 inch square by 4 feet 4 inches tall shell with a single pass of nine tubes three inches in diameter. Exhaust air from the dryers is vented from the dryer through the heat exchanger tubes. The dryer air supply is preheated by passing it between the heat exchanger tubes and the shell. Air from the heat exchanger flows through a piece of ducting up to a coil cover. Removing the ducting between the coil cover and the heat exchanger revealed that the air flow over the coils was not distributed evenly over the coil face due to poor duct work design. Measurements indicated that there was no air flow through 20% of the coil due to the sharp 90° direction change in the duct work. When the coil cover was removed, air velocity was consistent over the entire coil. Removal of ducting and coil cover is recommended to improve drying performance. The air tightness of the dryer is poor. The heat exchanger ducting and coil cover were tack welded at corners leaving long gaps. A row of holes approximately 0.5 inches in diameter in the dryer casing allowed air to bypass the coil into the dryer. Metal parts were not manufactured to match well. Air volumes measured entering over the coil were less than the volume exiting through the exhaust ducting. In the shop as many of the holes and leaks were taped and caulked where possible. Fifteen percent (15%) more air was flowing through coil after sealing the leaks. The dryer performance improvement was not large enough to be accounted for due to test conditions variations. Sealing large air leaks between the coil and the exhaust fan is recommended to improve performance. A large temperature difference between the fluid in the coil and the air flowing over the coil leads to higher coil performance. Thus, the performance of the coil is directly proportional to the hydronics fluid temperature (see figure 4). The dryer manufacturer specifies: 240° to 260°F hydronics fluid for dryer operation. The standard design of plumbing two boilers in parallel will not give the high fluid temperatures leading to better coil performance. If the boiler is set to maintain the hydronics system between 190°F and 200°F, the water temperatures reaching the dryer coil will not reach 200°F and will often fall below 190°F. The hydronic fluid flow divides before and reunites after the boilers. The fluid leaving the lead boiler will reach 200°F, but after the flows from the lag boiler mix with the lead boiler flow, the temperature reaching the dryer is lower. A series boiler arrangement may alleviate the problem. A high air flow rate is critical for the efficient drying of clothes. The dryer manufaturer states that its dryer is designed for an air flow of 650 CFM. This volume was not achieved in the Brevig Mission dryers when measured at the exhaust. The exhaust ducting was made of 8-inch round ducting and 4 piece elbows. Forty percent (40%) higher exhaust rates were measured in the shop when all intake and exhaust ducting were removed from the dryers. When a furnace blower was used to blow air into the coils, it was found that the integral dryer fan restricted air flow. The furnace blower improved dryer performance by 22% when the dryers lint door was left open to bypass the dryer fan restriction. The performance improvement is compared with a dryer tested without any ducting or heat exchanger. Changing the dryer motor to one with a higher rpm to increase air flow is not an acceptable alternative for improving in place dryers. Changing the motor will change the tumbler rate set at the factory. The tumbler rotates at a speed where clothing falls through the tumbler versus being held against the side by centrifugal force. For improved dryer performance due to increased air flow, remove the heat exchanger and coil cover. Ductwork will need to be constructed for attachment to a 12-inch square vent. A minimum of large radius elbows should be used to to duct the wet air outside. If an additional blower is attached, additional ducting will be needed to bypass the dryer exhaust fan. The recommended blower (see summary) has sufficient capacity to maintain the desired air flow through the dryer if additional exhaust ducting is provided. The existing structure of the Hoyt Windsor I fan assembly is not able to accomodate the increased air flow without causing detrimental back pressure. Sufficient air flow for a 10°F temperature drop across the coil with a flow of 20 gpm will achieve the manufacturer's 100,000 BTU/hr dryer rating. Changes to improve dryer performance should be made with consideration of the existing demands on the heating system. Oil Fired Dryers: An alternative to hydronic heat source dryers is an oil fired furnace heat source dryer. A Dornback UFO-140-4BA oil fired force air furnace was coupled by ductwork to a Hoyt Windsor I dryer. The combination produced a high air flow, high temperature dryer that performed well when compared with a hydronic dryer at its peak. The furnace is manufacturer rated at 140,000 BTU/hr input and 117,000 BTU output. The Hoyt Windsor I is rated as a 100,000 BTU/hr dryer. The furnace burner had enough capacity to maintain its maximum rated plenum temperature of 200°F. The burner control could be set to cycle the burner off at lower temperature if desired. To achieve optimum dryer performance, an additional exhaust ventilation duct should be cut into the side of the dryer lint trap and ducted outside. This would allow maximum air flow. The maximum possible operating cost of the system would consist of 1 gallon fuel oil and 1.5 kw of electricity per hour. After the dryer and furnace warmed up, the actual oil consumption would be approximately 25% less due to burner cycling. Summary To improve dryers performance in villages: 1. 2. 3. 7. Remove coil cover to allow an even air flow over the entire coil and to increase volume. Caulk and tape air leaks. Run the boilers at the highest allowable working temperature. The dryer coil performance is directly proportional to temperature difference between air and hydronic fluid temperature. Eliminate glycol in hydronics loops. Make sure that the hydronics fluid is entering the bottom of the coil for greatest mean temperature difference between coil and air (counterflow). Increase air flow with a furnace blower fan (1600 cfm @ 0.5" water) and add extra ducting to eliminate back pressure created by additional air flow. Increase hydronics fluid flow to 20 gpm where the existing boiler infrastructure will allow the additional demand. Oil fired dryer: Oil fired forced air furnace dryers can be built for approximately $3,000.00 FOB Anchorage. These dtyers will perform as well as commercial dryers in Anchorage laundromats or hydronic dryers with blowers and additional exhaust ducting. oy) RK in OF 0. a Kenneth T. Sun Asst. Engineer Officer Operations and Maintenance Consultant William 0. Mace, Jr., P.E. Engineer Officer District Design Engineer : Ld fi —~ Douglas Goblirsch Sr. Asst. Engineer Officer Field Engineer DRYER PERFORMANCE DATA Anchorage laundromat commercial natural gas fired EH&EB shop, hydronic dryer w/ furnace blower and additional exhaust ductwork furnace dryer EH&EB shop, hydronic dryer with heat exchanger, less restrictive exhaust ductwork Brevig Mission, hydronic dryer with heat exchanger, more restrictive exhaust ductwork EH&EB shop, oil fired | first 20 minutes (1bs./min. ) 0.44 0.42 0.27 custom ductwork i Dornback ; iforced air #tl g iifurnace lint trap door removed front view coil assembly removed from dryer OIL FIRED FURNACE DRYER VELOING f Dornback is 4) “‘aanen, burner forced air ‘ es exhaust furnace .$ EY heat exchange removed rear view flint trap door front view HOYT WINDSOR | DRYER coil cover rear view fqadryer air exhaust air intake / N 100; PERCENT OF HEATING CAPACITY IN BTUH Fig. Fig. 3.... Flow of Media in Tubes in Relation to Air Flow | TYPICAL —~| RELATIONSHIP FOR 200EG TEMP. OROP @ ° ~“ ° La 40 10 1.... Heat Emission vs. ee 20 30 40 50 60 70 80 90 PERCENT OF FULL FLOW Typical Hot Water Heating Coil === aparsy eae we ee oe ge em py = =_—=-=— == td Parallel tlow Air flow Cross flow c 100 Flow Characteristics of RATING FACTOR | | | | | | a ee 1.0] —— ae O39 | ; | | I 7 i | | | | | ost! | | | H | | | | iI | \ 0.7 —— | | i | ad LI PT 2 3 4 3 WATER VELOCITY, FPS Fig. 2 .... Effect of Water Velocity on Finned Tube Output 15 gpm: coil tube velocity 20 gpm: coil tube velocity 2.0 FPS 2.7 FPS 100 © ° o ° ~ 3 a ° 2 3 PERCENT OF HEAT CAPACITY IN BTUH oO a ° ° ° 10 10 20 30 40 sO 60 70 80 PERCENT OF TEMPERATURE DIFFERENCE BETWEEN WATER ANO AIR 90 100 Fig. 4..... Change in Heat Emission with Change in Water Temperature MEMORANDUM Date: 9/12/88 To: Dr. Robert E. LeResche Executive Director, Through: Donald S. Shira nee toons and Facilities Operation Jerry Larson Manager of Rural Projects From: Peter N. Hansen I Project Manager Subject: Emergency Procurement of generator for White Mountain. Reference: My memorandum of 8/17/88 As outlined in the above mentioned memorandum, a_ replacement engine has been purchased and installed on one generator set in White Mountain. Start up is expected to take place on 9/13. It appears that the most timely and cost effective way of assuring sufficient back up generating capacity in case of problems with the prime unit, will be to purchase one additional engine (in lieu of a complete generating set) under the emergency procurement procedures outlined in the above mentioned memorandum. Unless otherwise directed by you, I intend to initiate this purchase immediately. A third generating set will then be purchased under the State's normal procurement procedures and is expected to be installed by the end of this calender year. These installations are expected to change White Mountain's status to one of the more fuel efficient utilities in the State. For your information, further improvements planned for White Mountain include a number of end user modifications such as replacement of a number of electric appliances located in public buildings with oil/propane fired appliances. Other planned improvements include an upgrade of the existing (unusual) 600 volt single phase distribution system to a standard three phase system operating a 4,160 or 12,470 volts. MEMORANDUM Date: 9/12/88 To: Dr. Robert E. LeResche Executive Director, Through: Donald S. Shira Tee and Facilities Operation Jerry Larson Manager of Rural Projects From: Peter N. Hansen Mh Project Manager Subject: Emergency Procurement of generator for White Mountain. Reference: My memorandum of 8/17/88 As outlined in the above mentioned memorandum, a_ replacement engine has been purchased and installed on one generator set in White Mountain. Start up is expected to take place on 9/13. It appears that the most timely and cost effective way of assuring sufficient back up generating capacity in case of problems with the prime unit, will be to purchase one additional engine (in lieu of a complete generating set) under the emergency procurement procedures outlined in the above mentioned memorandum. Unless otherwise directed by you, I intend to initiate this purchase immediately. A third generating set will then be purchased under the State's normal procurement procedures and is expected to be installed by the end of this calender year. These installations are expected to change White Mountain's status to one of the more fuel efficient utilities in the State. For your information, further improvements planned for White Mountain include a number of end user modifications such as replacement of a number of electric appliances located in public buildings with oil/propane fired appliances. Other planned improvements include an upgrade of the existing (unusual) 600 volt single phase distribution system to a standard three phase system operating a 4,160 or 12,470 volts. 08/18/88 16:39 EMERSON DIESEL RATING: RATED BRAKE POWER MODEL: 3-7IN 109 bhp @ 1800 r/min APPLICATION: GENERATOR 91 bhp @ 1500 r/min STANDBY POWER tt Py PEt tT yee lo eee er Oe ee pe eT pi Py eee ptt ] pitt ee Pt gop tt TTT Ti pay eee pt | Pp TT Ht + Pt pei tT tt er rr YT GEEEEEEEEEEHEEEE EEE EE ee Pee 1500 ieee ENGINE SPEED - r/min POWER - bhp i pitt pt eT TTT TTT it 4O Pet hte a i800 t/min 4 pe Ty qo a r/nin |) 32L DT TE pete a ra PEE eee ee Te ry Oe a eee SSSR Lr |_| SS eae eeee 16 pt eee enor ean 16 32 64 80 96 112 POWER = bhp FUEL CONSUMPTION - tb/hr a AIR UNTAKE RESTRICTION - in. H20 kPa) . . . 10 2 EXHAUST BACK PRESSURE - im. H20 (kPa). . . . 15 (3. 7 + POWER OUTPUT GUARANTEED witwim SB AT SAL JI9R9 CompIT rons: CERT IF LER BY. WY F RVE NO. ni . : Eg Vy «520 Toorr (SeSey rock TMT Peertuatuat {cAS) Bane rie teat aT tere) O, ZT €4-1035-52-1 © COMVERSIOm FACTORS: POWER: ft & one a0 Tee ea fff DATE: 9-2)-71 + VALUES DERIVED ARE Faom CUAAERTLY AVAILABLE BATA’ AMD SUQUECT TO REV./DATE; 3/98-2-35 ee toke STAFF ENGINEER SHT. | oF 4& 28/10/88 16:48 EMERSON DIESEL Q03 eee e eee c cence eee cece reese eee eee eee eseenneeeceeeanees +++ 10357008 Number of Cylincarp.......csssseseseeeces we vtec rccncccccccccccese .3 Bore and Strokesin (We) ooeesesssecseseceeeeessesesererererceecenees 4.25x5.00 (108x127) Dimplacamertt~in" (L)..ceeecccsessessccsssccescceesecsererers eoeeeee 213(3.49) Lom Ratdo.sccccscccsccscnccscesseaseseenues seccecesessoess LB.731 Compress Valves per Cylinder Treat. ccs cccccceererevevsesescsees Eddamust.... ccc eseeccecees Combustion Sywtatn.....--cerersecserer erences Engine Type....-.-- sone seen eceserereeeresorees AMPLLAtlOn..ccscerccercevecessscrsceserece eeeccnee Sentiauration Turbocharger Charge Air Cooling Symtam..csccccccecsscccscnseeesevevesenersere ++ NONE Blower Type....... Seas ates ox ees nets icy snie aa Ge wales onic sis wes es STANDARD Blower Drive Ratdowscccccccrcccnsncnesersssesecsssssasasacenssesas 2008) Thrust Bearing Lead Limit Camtiraicumnlbt (N) eee eee ccccecanesscceeveccccccasescsssossscssess 400(1780) TrrtermittamtelLb£ (N) ccc creresecccrececccerecscesasssessscsveseess 1200(5340) Engine Crankcase Vert Systam..cs cscs ccc ce eseseesssnnenccecsecccces OPEN Marcia Premsure-in HjO(KPR) +... sseeeececeeseeenceeenserrenessces 2+9(0047) Fhysical Data Dimensions and Laragthmin (im) cece eccnscnssccccscescceveessessssscsesscssasesees 3843(973) Widtth=in (mm) .sccceccescccceereessssusescesctseeenees seesereeeeece 2994(746) MAP (HER) vo vce eccccccscerseeeescecucencerceccescrceresesecss 4624(1178) Weight ,Ary—1b (Kg) scececeececsesececceesceusnensees cccseccsevecces 1525 (692) Cantar of Gravity Distance From R.F.0.B. (% axis)ini(nm) .sesscccncccccccecessesesencsccverss 6436(162) Above crankshaft (y axis)-in(mm).....seeseeeenes ssevesseesecserae 2e2(183) Right of Crankshaft (z axis)-in(mm)....... coeseevcecccsccensssces O647(11.9) Installation Drawing... ...s cece cence ence wonceccececsccesveceesesee SLATES Maximum Allowable static Bending Moment at Rear Face of FW Hagelbf ft(N M).---rccerecesccsccscavevssscses O Electrical Systep Recommerdad Battery Capacity(CcA ¢ o°F) 12 Volt Above 3257 (OE) “Ree eeeeceesereeees Serrerer wovcccccveneseeseesee 950 BR1OW 32°F (O°C) “Ac cecccnvescccccccvncevccusussensessesessseeseee L250 24 Volt Dbove 32°F (O°C)mA. cece cecnceneccccesccncncscsssssessssscssccsses 475 BOlLOW 32°F (O°C)-Avsecccccessccccccccsccscescessssssssesssssesoes 625 Max. Allowable Resistance of Starting Circuit 12 Volt System — Hite cece rccessccessevscesvecsssescsescesssscsese O.0012 24 Volt. System — He secececcccsncsccrccscesevvessersscessesesens On002 All values at rated speed and power arxi with Qirve No. E4-1035-52-1 standard engine hardware unless otherwise notad. Date: 9-21-71 Rav. /Date: 3/8-2-85 Sat. 2 of 4 08/18/88 All values st cetectpeed -ard- power -and with —---- standard engine hardware unless otherwise noted. 16:41 EMERSON DIESEL an4 ENGINE SPROIFICATION DATA ~~ g00 soo Fuel Injector/Timing....ssccssseseecess N70/1.460 N70/1.460 Fuel Injection Pump/Timing.... NOT APPLICABLE NOT APPLICABTZ Fuel Consumption-lb/hr (kg/hr) . 44.7(20.3) 38.8(17.6) Fuel Consumption-gal/hr (Ihr). 6.4 (24.2) 5.6(21.0) Fuel Spill Rate-1b/nr(ky/hr). » 496.3(225.1) 468.3(212.4) Fual Spill Rate-gal/hr (L/hr) 71(268.8) 67 (253.6) Total Fuel Flow-lb/hr (kg/hr) + 541.0(245.4) 507.1(230.0) Total Fuel Flowgal/hr(L/nr).........++ 77.4 (293.0) 72.5 (274.6) Maxima Allowable Fuel Pop on Clean System-in Hg(KPA)sssesessesenses 6(20) 6(20) Dirty Bystemm—in Hg(KPa)sseseceseseeees 12(41) 12(41) Fuel Filter Micron Size - Primary....+. 30 30 Secondary.... 10 10 Oi] Pressure = nomml= £/4n” (KPa) weaee 54 (372) 50 (345) In Pan oil ture "F ("C) cee eeeeeee 200-225(93-107) 200-225(93-107) ol Fl (L/min) oes sveececeee 20(76) 17 (64) O11 Pan capacity ~ High-qt(L)...e.ssees 13(22) 13(22) Lowacgt(L) eesevececes 9(8.5) 9(8.5) Total Engine O11 capacity with Filtere-qt(L)eeceseeces aebeeeresmueenle 15(14) 15(14) Bypasa O11 Filter orifice-in(mm)....... 0.062 (1.57) 0.062 (1.57) Engine Anguiarity Limits oo From up — Gegrwes.seccsecsccreccssess 16 16 From. Down = degrees. ..cescecsersecens 16 16 Side tilt - degrees....... Seecevscuscs NOT AVAILAHLE NOT AVALIABLE Engine Heat Rejection-Btyymin(KW)....0. 3690(64.9) 3430(60.3) Engine Radiated Heat-Bruymin(KW)...e.+++ 720(12.6) 680 (12.0) Coolant Flow-qal/min(L/min) .+a+ssesee 40(151) 34 (129) Thermostat - Start to SF C)eveaue 173 (78) 173 (78) Fully Open="F(“C).eceeeees 186(86) 186 (86) Maximm Water Pimp Inlet Restriction=in Ho(KPA).scccsscsseseeee 3.0(10.2) 2.0(6.7) Engine Coolant Capacity-qt (I) ++++++++++ 10.0(9.5) 10.0(9.5) Minimm Pressure Cap~lbf/in" (kPa)...... 9.0(62.1) 9.0(62.1) Maximm Coolant Preasure, (Exclusive of Pressure Cap) -1bf/in" (kPa) ........- 20(138) 20(138) Maximum Allowable Cooling system Static Head W/Vented Cap-ft }O/kPa).. 50(149) 50(149) Maximum Top Tank Temperature- (GC) sees 210(99) 210(99) Minimm Top Tank Temperature-"F(°%c).... 163(73) 163 (73) Min. Coolant Fill Rate-gal/min(L/min).. 3.0(11.4) 3.0(11.4) Cooling Index Minimm Air to Boil-°F(%c) ,..,+0++++++ 117(47.2) 117 (47.2) Maximm Air to Water pitt. ~°F( C)eseesoe 95(52-8) 95 (52.8) Deaeratian ~,Air injection Capacity-ft"/min(m /min)......eses seve 063(0.005) 0.3(0.005) ,-—~ Orawiown = Minimum Requirement (or 10% of Cooling System Capacity-whi is Larger) -qt(L).sescssers oeeuseces eee 3.0(2.8) 3,.0(2.8) Cueva -Neos-B4 LOWS-B2-2. Date; 9-21-71 Rev./Date: 3/8-2-85 Sht. 3 of 4 Eniesions - gw/hr (at percent load) - 1800 r/min ot 25% 50% 75% 100% No, 103 «4302s 820.—s«-2270~—Ss«1390 oX* 72 47 48 1532110 He 55 41 44 45 23 50. 29 64 103 145 203 Enigsions - (at percent load) - 1500 r/min Os. 25% 50% 75% 100% NO, 86 330 720 110 81220 cox 67 40 43 96 2880 He 34 64 87 57 60 50, 22 52 86 124 176 All values at rated speed and power and with standard engine hardware unless otherwise noted. 98/18/88 16:41 EMERSON DIESEL a2 ENGINE SPECIFICATION DATA 2800 2599 Aix Systes Maximm Allowable Temperature (Ambient Air to Engine Inlet)=<"F("C)... 30(16.7) 30(16.7) Air Intake Restriction Meximm Limit Dirty Air Cleanar—in H,O(kPa).......+. 25(6.2) 18(4.3) Clean Air Cleaner-in 10O(KBa).......+. 19.4(3.3) 11(2.7) Engine Air Flow - ft (m”/min).+.s++ 330(9.3) 275 (7.8) Engine Air Box/Manifold Pressure- dn Hy (KPA)... 2 eee ee ee cece ee eee tence 7.$(25.3) 5.0(16.9) Recommended Intake Pipe Dia.-in(m).... 4.0(102) 4.0(2102) Eachaust_ Systen Ptaust Flomtt?/minim ymin) .....++++++ 870(24.6) 740 (22.0) Exhaust Temperature F("C) eosseesereses 960(516) 950 (510) Meccimm Allowable Back Presmire- in Hg(kPa)......... waeaawe cievecueeee 3.3(11.2) 2.3(7.8) Recomended Exhaust Pipe Single-in(mm) ....eeeenceccuncnvveneees 300(76) 3.0(76) Bualeln(mm) ....cscsesecvcevecccscecess NOL APPLICABLE NOT APPLICABLE Parformance Power Output<bitp (KH). cscceesecceeeenses 109(81) 91(68) Full Load WE /MIN. .cecececeeseeeees 1800 1500 EMEP-Unt/in" (KPa) ee eqeeeees veeeees 112.7(777) 113.1(780) Piston Speed-ft/min(m /min) ....seeeee5. 1500(457) 1250(381) Friction Power-bhp (KW) ..ccsseseseeeeees 25(19) 18 (13) Altitude Capability<ft(M)..eceseseeeees 5000(1520) 2000 (610) Noise ~ GB(A) @ IM..ececccccceseccccess 100.3 98.4 Smoke ~ Bosch NUMWOL. ccccceeeeeereesees 200 2.5 Part_Leed Fuel, Consumption Fuel-lb/hr (kg/hr) — 0% Power.cseseesses 6.4(2.9) 4.8(2.2) 25% Power.....22005 14.1(6.4) 12.6(5.2) SO0% POWEr.seceseeee 22.6(10.3) 18.9(8.6) 75% Powar.......... 32.1(14.5) 27.3(12.4) LOOF Bower. .enseere 4407(20,3) 38.8(17.6) Curve No. §4-1035-52-1 Date: 9-21-71 Rav./Date; 3/8-2-65 Sht. 4 of 4 ——, POWER - bhp FUEL CONSUMPTION - Ib/br 08/18/88 16:42 EMERSON DIESEL 226 ENGINE PERFORMANCE CURVE A RATING: RATED BRAKE POWER MODEL: 3-71N pe Lib : 92 bhp @ 1800 r/min APPLICATION: GENERATOR 80 bhp @ 1500 r/min PRIME POWER 65.5 bhp @ 1200 r/min Pe ee eis vooL tT TEL i titi rt et tt ttt Ppa oe SE ee eae ae etal pire eer a er so PCCEEEET ET eee at pp Lat yi ry pe eee eee Pe pee a a eee sop i ti piri Ppp tt te a SE Sel sa SS Sete ai PPT eee eee er vor tT TT rey eee pip id Pit TT Ty a LT yey ppp tei ttt te tT a gee gop ti tit tty eee eee Petry ey ay ya eee SS IEEE EEE eee eer piety ree ttt tt tT tt Lip tt eee 1200 1400 1600 =: 1800 ENGINE SPEED - r/min we EEE EEE EEE COE reer A a a ateleele iefo foe 24 role tr try co peer eae seer Pe aC CH ee Bee eee eee eo CeCe 16 32 48 64 80 96 POWER - bhp AIR INTAKE RESTRICTION ~ In. H20 (kPa) . - . 10 (2.5 EXHAUST BACK PRESSURE = in. H20 (kPa). - « 15 (3.7) Secbaniaeeenel © POWER DUTPUT GUARANTEED WITHIN SE AT SAK JI389 CONDITIONS: 77°F (25°C) AIR IMLET TEMPERATURE; 29.3) Fn, Hy ($%Pa) DAY BAROMETER; Woo"F (39°C) FUEL CMLET TERPERATURE (.85) SPECIFIC CaaviTy AT 60°F). > CONVERS IOm FACTORS: POWER: kW = bhp nO. 706 + VALUES DERIVED S8E FROM CURRENTLY AVAILABLE BATA and SUBJECT TO CHANGE WITHOUT MOTICE. FUCL: kg/hr = te/ne x 0,456 YZ > CURVE NO. DATE; 10-28-80 REV, /DATE: A ENGINEER SHT. 1 OF 4 E4-1035-52-4 1/5-10-85 0871888 16:43 EMERSON DIESEL 207 ENGINE_SPEGIFIGATIGN DATA Modal........0- Te aoe aid'eclece/ely sles yoieeeleee ester elley Paes cecesecesers 1038-7008 Number of Cylinders............4 eed de als aI 3 Bare and Strole; in (mm) .. seeeeee sere ecccnesecececsscesssececeasens 44 25X5.00 (108X127) Displacemant=in" (L)...-.-----+ POOP meee aes esses eneeeensssesacaen + 213(3.49) Compression Ratio............ Oa eee eevee ence cerceseeecsccsssence «+ 18.7:1 once ence na ceeeceeaneee sees ae eee weneerreseesvewrencceeecsose NOL APPLICABLE 4 OORECT DVESTION INLD - 3 CYcle 2.00:1 Cantirasoum-LSL(N) scsceesccorovvcccces Pee eer reese errasesereeseee 400 (1780) Inttermittert-Lbf(N) oceecccceecccsssscccccccccscevevscsssesessscss 1200(5340) Enging Crankcase Vert SYBtam.... sees eeeceeencenccsccesucscssesees OPEN Meximm Preasire-in HOC) sre srecerceesnceenssssesnerrereeseees 1.9(0.47) Phygical pata Cinensicns and Larvgth—in(mm) osccsecccccncnsacesenascenvceresccssscesccsssccseses 3803(973) Widtth<in (mm) ..sccccrcvevevcvscvcccccesccsccccsnnvecesssesscsssees 290k (746) Bedght—ini(mm) ccc scescccescccsscsassccccevcescceescsnccescsecsees 4604(1178) Wadght ,ry-LD (16g) scccsenccsrercnerenecerereeee senses eeesnesesness 1525 (692) Canter of Gravity Distance From R.F.0.B. (x axcis)<in(mm) oo cscs ees cccescccssesceneccenseseacs 6236(162) Above Crankshaft (y axis)<in(tm)...sscesccrerecccevecccesceeesses 792(183) Right of crankshaft (z axcls)-in(mm)....ccecccececccccecescnsesees O647(11.9) Installation Drawing. cccccccccceesncsnusnseesencvsvescccesccsseces S147465 Maximm Allowable Static Bereling Moment at Rear Face of FW Hug-lbf ft(N m)ecccccecccccccccccsssacescnenes O Electrica) Svates Reccmmendad Battery Capacity(cca @ 0°F) 12 volt Above OF (OC) Ae ceesesesesesscscscscecsseeassssstsnsesssecens eerie etc sbles bene salrs 24 Volt Above 3207 (OC) “ees seoseeees Sieeaeeuecbeerhevcesseucaueusiae ( ee eee eee Ue ates Max. Allowable Rasistance of Starting circuit 12 Volt Systen @ AMs ccccccccccccccccccvesevecvecuesevevenusssese 24 Volt System ~ Gh. sscseccseccscccereesevenvensersessasessuanns Bg 3 a 2° 8 BE All values at rated speed and power and with Curve No. E4-1035-S2-4 standard engine hardware unless otherwise noted. Date: 10-28-80 Rev./Date: 1/5-10-65 Sht. 2 of 4 208 2209 N60/1.460 NOT APPLICABLE 26.6(12.1) 3.8(14.4) 384.5(174.4) $5 (208.2) 411.1(186.5) 58.8 (222.6) 6(20) 12(41) 30 10 45(310) 200-225 (93-107) 13 (49) 13(12) 9(8.5) 15(14) 0.062 (1.57) 16 16 NOT AVAILABLE 2360(41.5) $10(8.9) 28106) 173(78) 186 (86) 1.0(3.4) 10.0(9.5) 9.0(62.1) 20(138) 50(149) 210(99) 163(73) 3.0(11.4) 127(47.2) 95(52.8) _ 0.3(0.005) 3.0(2.8) 98/10/88 16:43 EMERSON DIESEL ENGINE SPECIFICATION DATA 4300 4500 _—~ Fuel in Jector/Timing..csscseeeeesee see N6O/1.460 N60/1.460 Fuel Injection Pump/Timing...........+. NOT APPLICABLE NOT APPLICABLE Fual Consumption-lb/hr (kg/hr) oes. eee e+ 36.3(16.5) 31.7 (14.4) Fuel Consumption-gal/hr(Iyhr)....++.205 5+2(19.7) 4.5(17.2) Fuel Spill Rate-Lb/hr (kg/hr) ...eee ees + 496.3(225.1) 468.3 (212.4) Fuel spill Rate—gal/nr (L/h) .....eeeees 71(268.8) 67 (253.6) Tetal Fuel Flow-lb/hr (kg/hr)..........- $32.6(241.6) 509 (226.8) Total Fuel Flowgal/hr(Lyhr).......eeee 76,2 (288.4) 71.8(270.8) Maxim Allowable Fuel Pump Suction Clean System-in Ho (KPA). ..-ceeeeeeeees 6(20) 6(20) Dirty System-in Hg(kPa)...seesesseeeee 12(41) 12(42) Fuel Filter Micron Size = Primary...... 30 30 Secomdary.... 10 10 lubrication System Oil Pressure ~ nermal-1pf/in”(KPa)..... 54 (372) 50(345) In Pan o41 fare FC) wee eeeee es 200-225(93-107) 200-225 (93-107) O41 Flowgal/min(L/min).....e..- + 20(76) 17 (64) Oil Pan Capacity - High-qt(L)......066. 13(12) 13(12) Li) vvcess cosss 9(8.5) 9(8.5) Total Engine Oil Capacity with Filters—qt (L).ssscccscceccccecccseess » 15(14) 15(14) Bypass Oil Filter Orifioe-in(mm)....... 0.062(1.57) 0.062 (1.57) Engine Angularity Limits Frome up — degrees.cccssccecscevcences 16 16 Frome Down ~ degrm@s..eccseseces seceee 16 16 Side tilt - degqrees.........c eee e eens NOT AVAILABLE NOT AVAILABLE ‘ling System Engine Heat Rejection-Btu/min(KW)...... 2900(51.0) 2560(45.0) Engine Radiated Heat-Btu/min(KW)....6e6 590(10.4) 550(9.7) Coolant Flow-gal/min(L/min) ,..asse+++ 40(151) 34 (129) Thermostat - Start to Or("G).....- 173(78) 173(78) Fully Open-"F(%C) 0... 000s 186 (86) 186 (86) Maximm Water Pump Inlet Restriction=in Hy(KPa).....sececseeaee 3.0(10.2) 2.0(6.7) Engine Coolant Capacity-qt(I)..+..--.-- 10.0(9.5) 10.0(9.5) Minimm Pressure Cap-lbf/in“(kPa)...... 9.0(62.1) 9.0(62.1) Maxim Coolant Pressure, (Exclusive of Pressure Cap)=lbf/in* (kPa)..... sees 20(138) 20(138) Meximam Allowable Cooling System Static Head W/Vented Cap-ft Boga) e+ 50(149) 50(149) Maximm Top Tank Temperature- (©) sesve 210(99) 210(9S) Minimm Top Tank Temperature-"F(C).... 163(73) 463 (73) Min. Coolant Fill Rate-gal/min(L/min).. 3.0(11.4) 3.0(11.4) Cooling Index 4 Mintmm Air to Boi1-°F(°C) ,..,.s6eees 117 (47.2) 117 (47.2) Maximm Air to Water pitt. -F( (0) Pe 95 (52.8) 95 (52.8) Deaeration ~,Air injection Capacity-ft~/min (m/min) ......... eseee 063(0.005) 0.3(0.005) Drawdown - Minimum Requirement. (or 10% of Cooling System Capacity-Whichever ds Larger) “qt (L) scsevecueeees seveecees 360(2.8) 3.0(2.8) ee 41 values at rated spead and power and with Curve No. E4-1035-52-4 standard engine hardware unless otherwise noted. Date: 10-28-80 Rev./Date: 1/5-10-88 Sht. 3 of 4 a8/19/88 16:44 EMERSON DIESEL ENGINE SPECIFICATION DATA 4800 4500 Aix Syates Maxim Allowable Tesperature (Ambient Air to Engine Inlet)-"F("C)... 30(16.7) 30(16.7) Air Intake Rastricticn rodeat Limit Dirty Air Clesnax=in HO(kPa)......... 25(6.2) 18 (4.5) Clean Air Carmi Olga) sseses ss 13.4(3.3) 11(2.7) Engine Air Flow - (m"/min) ..+0+. 330(9.3) 275(7.8) Engine Aix Son /acdsead Pressue- AM Hy (PA). ~~ eee eee cece ee ere nee eeees 7.5(28.3) §.0(16.9) Recommended Intake Pipe Dia.-in(mm).... 4.0(102) 4.0(102) Exhaust Svates Bhaust Flow-ft? min bean seecevee 790(22.4) 650(18.4) Exhaust Texperature-F("C) sees eseeeees 820(438) 810(432) Maxim Allowable Back aes dry Bay (kPa) ....eee oerpe0si6de06 seeeccee » 3.3(11.2) 2.3(7.8) Recamerndedt Exhaust. Pipe Diameter Single-in (mp) ......... aeweseeusvvresen 3.0(76) 3.0(76) Dual-in (eM)... seceeeee ae recacccnccecs NOT APPLICABLE NOT APPLICABLE Pextormence Power Output-bigo (KW) .c.cessceeseses sess 92(69) 80(60) Full Iced Spead-r/min..... eoevceseceses 1800 1500 EMEP-1bf/in" (KPa). 202 geecescsecesesoees 95.0(655) 98.9 (682) Piston Speed-ft/min (m fain) eecteaccessc 1890(457) 1250 (381) Friction Power-bhp (Ki) ...ssccesesereers 25(19) 18(13) Altitude cepesinity-fe(a) TUTTE ETere Try) 16000 (4880) 14000 (4270) Noise - GB(A) @ Li.seeeseseee seevescses Wel 98.4 Sacke - Bosch lumber... eeccee evcceseces Os? 0.8 % Powar = Fuel~lb/br(ij/hr) o% 6.4(2.9) 4.8(2.2) 254 13.1(5.9) 10.7 (4.9) 50% 19.9(9.0) 16.6(7.5) 75% 26.8(12.2) 23.1(10.5) 100% 36.3(16.5) 31.7(14.4) mulscion ~ guvhr (at percent load) - 1900 r/min 25% S$o0% 718% 100% NO, = 485 780 1210 1320 oo 3». 63 37 87 1866 = 7 142° 4 114 135 39 123 165 muidsiow - gata (at panowt: lod) - 3500 x/ain ot 40.25%) 508 75% 100% NO. 41 «= 420.—=—«700—'—«éaSD—s=«iLLCHOD oX 221 35 33 50 1570 me 19 39 32 32 34 49 75 105 144 mmideione oy (at percent load) = 1200 r/min ot 75% 100% NO 10 rt oe 835 840 a*~ 20 28 28 40 ©1640 He 210 29 28 28 32 $0, 7 37 59 a3 121 All values at rated speec and and with stariaxd engine hardware unless ctherwise noted. aes 2299 30(16.7) 12(3.0) 8.5(2.1) 210(5.9) 2.8(9-5) 4.0(102) 490(13.9) 785 (418) 1.5(5.1) 3.0(76) WOT APPLICAEIE 65.5 (49) 1200 101.7 (702) 1000 (305) 13(20) 12000(3660) 98.0 1.0 3.7(1.7) 8.1(3.7) 13.0(5.9) 18.2(8.3) 26.6(12.2) Curve No. E4~-1035-52-4 Date: 10-28-80 Rev./Date: 1/3-10-85 Sht. 4 of 4 MEMORANDUM Date: 1/17/89 To: Donald L. Shira Director. Program Development & Facilities Operations Through: Jerry Larson Manager of Rural Projects From: Peter N. Hansen Nb Rural Systems Engineer Subject: White Mountain generator. I received a call from John Oktoksoruk from White Mountain. He told me that Olympic Power Systems had sent a mechanic to White Mountain to fix yet another broken turbocharger on their new generator. The mechanic determined that the turbocharger failures had been caused by a restriction in the lubrication oil supply to the turbocharger. This in return should mean that the exhaust system as installed by Power Authority personnel was not the cause of the problems and consequently Power Authority personnel was not to blame for any of the failures. As a result of this it would be reasonable to expect that all costs associated with the turbocharger repairs will be covered by warranty. P.O. Box 995 Nome, Alaska 99762 BERING STRAITS REGIONAL HOUSING AUTHORITY 443-5256 or 5257 February 6, 1989 ast: David Denig-Chakroff, Manager P.O. Box 190869 701 East Tudor Road Anchorage, Alaska 99515-0869 re: Electric Project - White Mountain Ak06B008030 Dear Mr. Denig-Chakroff: The Housing Authority is requesting an explanation of the telephone utility wording under Article A, para. 1 in the tri-party agreement. We also need a breakdown on the expenditures for the $100,000.00 amount. I noted you have listed performances for the project. If you have any questions contact this office at 443-5256. od Daniel H. Harrelson Executive Director cc: John Vallee, Housing Counselor JV:mo MEMORANDUM Date: 2/7/89 To: Donald L. Shira Director. Program Development & Facilities Operations fA Through: Jerry Larson p Manager of Rural Projects From: Peter N. Hansen [vw Rural Systems Engineer Subject: Letter to White Mountain. Please find attached for your review and comments a letter, which was requested by John Oksoktaruk of the City of White Mountain in order to keep him informed about the project. February 8, 1989 Mr. John Oksoktaruk Utilities Manager City of White Mountain White Mountain, Alaska 99784 Subject: White Mountain Electric System Upgrade Project Dear Mr. Oksoktaruk: Please find in the following a progress report for this project and a description of planned future activities as well. The most pressing problem at the start of this project was the condition of the City's two Detroit 6-71 generator sets. One engine had partially disintegrated and was damaged beyond repair, and another engine was damaged to the extent that a field repair would not be feasible. Two rebuilt engines, a 70 kw Detroit 3-71 and a 125 kw Detroit 4-71T were ordered and installed; unfortunately the rapid load increase during the fall exceeded estimated loads and consequently there was a period when the Detroit 3-71 did not have sufficient capacity to meet all load demands. This situation was partially rectified, when the larger 4-71T was installed; however this unit experienced a series of turbocharger breakdowns. The cause for the break downs was initially believed to be the exhaust system, which was feared to have to much back pressure. The exhaust system was subsequently modified; however, it soon became evident that the problem had to be found elsewhere, and the true cause was eventually determined to be a faulty oil line fitting causing the turbo charger to lack sufficient lubrication. All turbocharger replacements and repairs were performed by the vendor under warranty and did not reduce the amount of funding available for further upgrades. As you are aware, Bering Straits Housing Authority has made funding available for power line extensions and upgrades in connection with the upcoming construction of additional HUD-homes in White Mountain. It is our plan to upgrade the entire distribution system to a high voltage system as this will be necessary to ensure a reasonable quality of power without excessive voltage drops. It appears possible to reuse most of the existing power poles; a cross arm will have to be installed at the pole top to carry all three phases and the neutral in order to assure sufficient clearance between high voltage lines and phone lines and low voltage service drops. Depending on initial cost estimates, it is possible that the system will be x 4989/940(1) Page z designed and built to 15,000 volt standards and yet be equipped with transformers and energized for 4,160 volt. These lower voltage trans- formers are available from some larger utilities, which are converting to 15,000 volt equipment. It should be noted that Nome uses 4,160 volt equipment throughout their system and have no plans for any conversion to higher voltages, as they consider the lower voltage to be more reliable in coastal areas. Also, it should be noted that there will be no visible differences between the two types of systems. We are planning to perform the design as an in-house effort, and due to budget constraints, we may have to do the actual construction with our own forces, assisted by local labor. Needles to say, we will keep you informed about this as plans are finalized. We are hoping to be able to have the necessary materials shipped in on the first barge. Regarding a third generator for the power plant, we are currently finalizing specifications for this generator, and we expect to be soliciting bids within the next couple of weeks. This generator will most likely be slightly larger than the new Detroit 4-71T; yet it is expected to be very fuel efficient as the fuel efficiency specifications for this unit will be the toughest we have developed to date. Initially we will solicit bids for 1200 rpm as well as 1800 rpm equipment; once we know the cost and space requirements for the equipment proposed, we will be able to determine which type is the most suitable for White Mountain. While it has initially been the plan to have the third generator shipped in on the first barge, we will also be looking at the option of flying the unit in at a suitable time as this may be no more expensive than barge freight. Regarding possible peak load reductions from the school and the washe- teria, these issues will be addressed at a later date, when we have had a chance to determine must how big a problem such peak loads are in White Mountain. If you have any further questions, please do not hesitate to contact me at 261-7221. Sincerely, li te, Peter N. Hansen Rural Systems Engineer PNH:t1j 4989/940(2) August 19, 1988 Nr. Tim Tawarak Facilities Director Bering Straits School District P.O. Box 225 Unalakleet, Alaska 99684 Subject: White Mountain Power System Upgrade Project Dear Mr. Tawarak: As we discussed a couple of weeks ago on the phone, the Alaska Power Authority is currently in the process of planning and upgrading various portions of the above mentioned project. At the current time we are concentrating on upgrading/replacing the existing generators in order to get the power plant back in operation. Additionally, upgrades and extensions to the existing power distribution system are in design and we expect to be able to replace the existing 600 volt, single phase distribution system with a 4,160 or 12,470 volt three phase distribution system. The efficiency of the existing power system in White Mountain has been one of the worst in the State for a community of this size. We believe that this has been caused by a combination of poor engineering and equipment selection in combination with a difficult load profile. In similar situations in other communities we have enjoyed a great deal of success with a program to identify and replace components and ap- pliances, which place high demands on the power system during short periods of time without actually consuming a great deal of power. Such components and appliances typically force the power plant to have sufficient spinning capacity at all times to take care of the high demands placed on the system during very short periods of time. The rest of the time this excess spinning capacity is doing nothing but adding to the fuel consumption and general maintenance requirements of the power plant. We have found that especially electric hot water heaters, electric clothes dryers and electric stoves are very undesirable loads for a small village power system. Accordingly, it has proven much cheaper to replace such appliances than to attempt to build the necessary capacity into the power system in order to accommodate them. Whenever possible, electric hot water heaters have been replaced with small oi] fired hot water heaters, and electric stoves have been replaced with propane fired stoves. Electric dryers have been replaced either with “off the shelf” 3604/899(1) rays c - type propane dryers or with oi] fired furnace/commercial dryer combi- nations developed by the Public Health Service for rural Alaskan appli- cations. The replacement of incandecent lamps with flourescent lamps may be feasible from the utility customers’ point of view. However, it does not appear to be feasible for a rural utility to undertake such replacements, as the peak load reducing effect is minimal. During our last visit to White Mountain BSSD staff was quite cooperative in allowing us to inventory appliances and heating systems in BSSD facilities in White Mountain. In accordance with the issues addressed above, we would like to suggest the replacement of several electric appliances in BSSD facilities. Specifically, we would suggest the replacement of the following: 1. ATCO Teachers‘ Unit: Electric stove with propane stove. Electric hot water heater with oi] fired hot water heater Electric dryer with propane dryer Electric sauna with nothing. (Local staff would like it removed). 2. School Kitchen: Electric stoves (2 ea.) with propane stoves. 3. Grade School: Electric stove with propane stove. Electric dryer with propane dryer. As an alternative to the replacement of the electric hot water heater in the ATCO unit, this hot water heater could be reconnected with the heating elements in series connection in order to reduce the peak load requirements provided by this hot water heater. It should be mentioned that all other relevant facilities in White Mountain have been/will be inventoried in a similar manner, and among other things, the electric dryers in the City's washeteria are expected to be replaced. The cooperation of the Bering Straits School District on this issue will be greatly appreciated, and we would like to propose that we supply the replacement appliances free of charge in White Mountain in return for BSSD personnel performing the actual installation as soon as possible upon the appliances arriving in White Mountain. We would then ship the replaced units to Nome to be given away to people in need of replacement appliances. 3604/899(2) rage 3 If you have any questions in regards to these issues or if you would like to discuss the implementation of these tasks, please do not hesi- tate to call Peter Hansen, Project Manager at 261-7221. Sincerely, A : te LE ‘ Donald L. Shira Director of Program Development and Facilities Operations PNH: DLS: t1j 3604/899(3) MEMORANDUM Date: 3/2/89 To: Donald L. Shira Director. Program Development & Facilities Operations Through: Jerry Larson Manager of Rural Projects From: Peter N. Hansen (ne Rural Systems Engineer Subject: Reply to letter from Bering Straits Housing, see attached copy. Please find attached for your review a draft reply letter as described above. eve DR — looks = < ' Foo oe « reece We a; | dt | £340 20 han y : . | oe Cod Dicalertun en” with) | | eA March 6, 1989 Mr. Daniel H. Harrelson Executive Director Bering Straits Housing Authority P.0. Box 995 Nome, Alaska 99762 Reference: Your letter of February 6, 1989 Subject: White Mountain, Clarification to Agreement Dear Mr. Harrelson: T agree that the wording concerning the telephone utility in Article A, paragraph 1 of the White Mountain Agreement of 10/31/88 is somewhat unclear. A more suitable wording could be: “Perform a detailed review of the existing site conditions, coordinate all necessary engineering design for the Project and coordinate the upgrade of the existing City owned electric distribution system with the telephone utility." The intent remains that the Power Authority will review the site conditions, design the necessary upgrades, and implement the necessary upgrades while coordinating with Mukluk Telephone, Inc. (MTI). MTI shares the existing power poles with the City owned electric utility, which also owns these poles. Any necessary changes to the telephone system will be the responsibility of MTI. The breakdown of the expenditures expected in connection with this project will be addressed in a subsequent letter, which will be forthcoming in approx- imately two weeks. If you have any questions, please do not hesitate to contact me at 261-7271. TO ie Peter N. Hansen, P.E. Project Manager, Rural Systems Engineer BNH: it cc: Dale Rusnell, Alaska Power Authority x 5190/DD48(1) WHR Or OD if'l> URAL’ IHTLUR CUULP LU Sure rudd P.1 CRAIG TAYLOR EQUIPMENT COMPANY 733 B. WHITNEY ROAD ANCHORAGE, AK 99501-1694 PHONE: (907) 276-5050 Fal: (907) 276-0869 PACSIMILE TRANSMITTAL THIS TRANSMITTAL IS PAGE 1 OF bf PAGES TO THE ATTENTION YJ SA WoO-saen (50H) 103 KW (75> lene) = 213 g/Kuse = 345 ls (ap. He. == MAR Of “89 17' 16 CRAIG TAYLOR EQULP CU SurerbusEs P.2 Valve — (2vO RPM gE Tip \ook | 50 meck. Ki) = 20t CHP Stoss Rteemittont @ 1200 Kom {BH meel:. KW = 77.6 VAR GROSS CON FINUOUS @ free Ppms Neate —ACG2Z6A = 229 KW @ 0%... @e/ ) 128.7 KW = 220 g/KWH =. 256 Le/Hr HE. = 71-5 9.5% LE/He. (pan Beccuurc) @ 5%, bettie = 67.9 LES KR. G2 To 51.7 L8/HRe (oer. Bey ure) 5 52 getten = 49.1 LB/HE- | G00.5 Wp) LEZ Kw Eo %e Lony)= 218.9 /KWH = 353 LB/HP HR. = 27% BE.S (B/HR. (pee Beoewuke) | & 5% better = 35.7. Le/HE. | (Zot 7) 140 KtU,= (#0 neck. Kio = 239 g wn = «32S La/uP. HR. = . BAIT A ho 774 LE) stp. C fer Bkooiuke G ne) “WSK getfee = 73.5 LE/HR. Tt (42 Hh) (20 Kul) = (deeb mod Ki 233 o/kwH = -277 Le Mp. He. = ; Fh SR o MAR @7 ’89 17:16. CRAIG TAYLOR EQUIP CO 9872768889 - P.3 - Unluve 711. [foo Kom (ru ter Lye. (Tip z1Ae = 243. loBEP, Uo Fas Stray. 20? YP Uo Fan) Peime anti Nole—~ Ho BZ4D = 162.8 KW EG 2. O60 Vel [Mi Kl = F935 Ze EFF. BOB FF Got. oF eu euTpud) 1 hates Poe ' DUB le HP Xo x Wah = 104.4 Kw sroey. CO UE Sex, 208 Hh, % 114 X FBB I = 195-5 RW prime cont: & [0% 52.9 L6/4k, (Pte Bleoenure grape) GS Bette, = Sl 2 Le/tR. SH) boKib = 64.5 meaKW = 257 g/kwH =. 419 WP Hee = 922. we.2 Le/He. (per Beccnure geopn) @ Sie Bette. = 34.4 Lefue. VINK OF) OF aft ie URHLS THTLUR CuULP LU sure rbunEs P.4 _ Velvo— ‘Foo Kpm | (Tee BPH Const ufo Fens) | = Boy BPH w/e FAN — St BY. ACte4+D = 462.7 KW @wpec- 2ZYL Vole» | [Yo kill) == FRPP Po EFFCY, @ OF LF <70%) | Oe PX 1PM KGB Be = LYSE KL Shosy. 1726 BP THE X PY % = = 12) KW fewe Cnt. ole 77.4 le / He (pee BROCHURE ia RAPHY) BS%t. Bi = 735 (B/WR. 178 MP) NOO KU) = Moke meek. KW = 223 g/L = 6877 B/up Hee = 5 7B Be 53.9 lef. fit Feedtre aCApH; \ = al =. = . ¢ = (el HP) Le Kw. = /50 peck. KLU = 23bg/ KWH 33. Le/up He (25% Rete wz BENZ 66 / Wk. | (96.5 Hf) COKWL= 64.5 mechs KW = 264 g fiwil = 927 Lo/ Hp He. = gs / 56.4 le/MEe- C pee- BhacHike Geapa) a. 5% fetlen = BS 8 /ite NEOPRENE WASHER | PO eT Lee CLE LLL SL eRessSe ULL RT. STEEL PLATE City of { White Mountain 4 Alaska hi 4 e 99784 4 e January 19,1989 RECEIVED 2Y SLASK State of alaska 89 JAN 24 P3:55 Alaska .Power Authority Attn; Peter Hansen P.O Box 190869 Anchorage, Alaska 9951990869 Re; Letter of Authorization To Whom It May Concern; As per telephone conversation, January 18,1989. The City Council of- White Mountain hereby authorizes Peter Hansen with Alaska Power Authority to act on the behalf of the City of White Mountain , in making the ne cesSary arrangements and to purchase a new generator with the $75,000.00 grant for Power Systems Upgrade for the City of White Mountain. AshenfelterfZ Mayor City of White Mountain SEP 12 °89 14:21 FROM NAF ANC AGE.@@1 ello a ATE & err = jan eee aGranie( Nontucan ATE & SERVICE QUOTATI | Date Air Freight, ine. . Obtained Shipment: (] Yes Ono Information Requested: Oo Date eae If no, indicate reason: SHIPPER - CONSIGNEE £ AL ska Chocg.4 Quth . “TT Tuas CTE Re a Uinta WA SENT ACT sOMMORITY ° i *RESENT AVGINE aoune Wie R0UTING We SOMMENTS —— : . Heces O-D Weight Boo camel Prepaid C) cottect (1 ard erty Jim, Weight ‘ - SENVICE LEVEL HEOUESTED rign EQ Destination OMe tm = | eee NA F RATE SCALE nsured Lm = earperasewsrsasnienenseltienaneelae ‘ PReIGHT CHARGES Jeclared Value #10.) wee | nIBE: 1 —§ rolenr LL ud eel L INSURANCE Youte Via: énd Rate { PAs eee DECLARED VALUE Co Del. Rete J OMEN dee H TOTAL _|US. PER cUUIC Fr. | l I a | ADVANCED CHANGES ORIGIN — Lseawetecnialvemerarin—— rr L_ eel s¢5¢——— CUUIC FT, |. za Le | Ri dHTO OD [--- xk TOTAL RAGE. AG1 «x