HomeMy WebLinkAboutAmbler HR ApplicationI -t) ALASKA
.) ENERGY AUTHORITY
Renewable Energy Fund
Grant Application
Name (Name of utility, IPP, or government entity submitting proposal)
of Ambler
Type of Entity:
2"d Class Government
Mailing Address
City of Ambler
P.O. Box 9
Ambler, AK 99786
Telephone Fax
907-445-2122 907-445-2181
1.1 APPLICANT POINT OF CONTACT
Name (primary)
Carolyn Ballot, Ambler City Admin istrator
(same as above))
Mailing Address
Same as above
Telephone Fax
907-445-2205 (same as above)
Physical Address
City of Ambler
Ambler, AK 99786
Email
Title (backup)
com
Morgan Johnson, Mayor
City of Ambler
Email
1.2 APPLICANT MINIMUM REQliiREME~lS ··' . ..~ . ~ ~ -
Please check as appropriate. If you do· not to meet the.1mijnimn•
application will be rejected. · "
requirements, your
1.2.1 As an Applicant, we are: (put an X in
X
Yes
Yes
Yes
ience and necessity under AS
I and endorsement for its project by
........ ~,.. ......... .,..... or other governing au thority. If a
If awarded the grant, we can comply
grant form. (Any exceptions •should
application.)
from each participant's governing
the box)
-~II terms and conditions of th e attached
,clearly noted and submitted with the
AEA 09-004 Grant Application Page 2 of 10 9/3/2008
SECTION 2-PROJECT SUMMARY
Renewable Energy Fund
Grant Application
Describe the type of project -you are proposing, (Reconnaiss~nce; Resource Assessment/
Feasibility Analysis/Conceptual Design; Final Design and Permitting; and/or Construction) as
well a$ the kind of renewable ene ; 'Ou intend to use.· Refer to Section 1.5 of RFA.
Construction of a waste heat recovery (WHR) system
2.2 PROJECT DESCRIPTION
This project will construct buried piping, pumps, heat exchangers, and other system components
required to recover waste heat from the existing AVEC power plant and confer this energy to the
new City water plant and washeteria in Ambler. This project will involve coordination between
the City of Ambler, Alaska Village Electric Cooperative, Inc. (AVEC), The Northwest Arctic
Borough, and the Alaska Native Tribal Health Consortium (ANTHC).
2.3 PROJECT BUDGET OVERVIEW . ~"'·
' " w:· Briefly discuss the amount of funds needed, the anticipated sources of funds, and the nature and source
of other contributions to {he project lncttfcle a project cost siVn.mary that includes an estimated total cost
through construction. ' t !
The cost estimate for design and construction of this WHR recovery system is $500,000.
Approximately $65,000 in design effort will be funded as part of existing water treatment plant
and washeteria projects being conducted by ANTHC. Required construction funding estimated
at $435,000 is being applied for through this Renewable Energy Fund program.
2.4 PROJECT BENEFr)" · · r , .
Briefly discuss the fin'ancial benefits that will result from thi¥ project, .including an estimate of economic
benefits (such as reduced fuel costs and a descri tion of otfi,e} benefits to the Alaskan ublic.
By harnessing waste heat energy and purchasing it from AVEC at a significantly discounted rate,
the City of Ambler will be able to reduce it's consumption of diesel fuel, cut the community's
overall expenses and pass the savings on to Ambler residents through reduced public utility
charges.
2.5 PROJECT·COST AND BENEFiT'StJMARY -i.r .t? •
lncl~de a suinmary-of your project's total costs cind be~fit.s bel qw.
2.5.1 Total Project Cost ' j'1 $ 500,000
lncludin estimates throu h construction.
2.5.3 Other Funds to be provided (Project match)
2.5.4 Total Grant Costs (sum of 2.5.2and 2.5:3)
2.5.5 Estimated Benefit (Savings)
~.5:6 Public Benef'lt' (~you. can calculate the 'l:Ktt:tefit in ~~..,of
· dollars please·provide that·"'IJ.mber he-. an.d exptll!n .how
ou calculated that number in our a licaUon:\tl IJ
AEA 09-004 Grant Application Page 3 of 10
$435,000
$ 65,000
$500,000
$ 1,400,000 over 25-year
1 design life of system
9/3/2008
SECTION !3 ._ PROJECT,MAN~GEMENJ' ~LANf L /
Renewable Energy Fund
Grant Application
Describe who will be responsible (or managing the pi:Qject and provide a plan for successfully
completing the project within the scope, schedule anq budget proposed in the application.
3.1 Project Manager . : ~ ;
Tell us who will be managing the proj~ct .for . .'th~e .. Grantee· and include a resume and references
for the manager(s). If the applicant d.oes '1,0t have.·a project manager indicate how you intend to
solicit project management Support. If ttie applicant expects project management assistance
from AEA of anothergovEmimeot entity, state.. that in this section.
Eric Hanssen, P .E.
Project Manager, Division of Environmental Health and Engineering
Alaska Native Tribal Health Consortium
Anchorage, AK 99508
907-729-3620
echanssen@anthc.org
3.2 Project Schedule l · . I
Include a schedule for the proposed work that will be funded by this grant. (You may include a
chart or table attachment with a summa of dates belo '.
Project Activity
Design Waste Heat Recovery System
Construct Waste Heat Recovery
System
3.3 Project Milestones
Define ke tasks and decision
See Section 3.2 of this application.
Start Finish
May 2009 August 2009
August April 201 0
2009
them.
3.4 Project Resources · . .
Describe the personnel: contractor~. equipmenti ang ~~rvices you will use to accomplish the
project. Include any partnerships or cOmmitments wit~ dth~r entities you have or anticipate will
. ' " be needed to complete your project. Describe any existing contracts and the selection process
you may use for major equipment purchase~~~.r.,~ontra ~~·. ln,pJude . brief resumes a~d r~ferences
for known, ke ersonnel, contractors; and slli~hers as,a.n attachment to our a hcat1on.
WHR system will be designed by an ANTHC term contract AlE firm. Contractual relationships
are already established and design for new facilities to receive recovered waste heat (washeteria
and water treatment plant) are already complete and will be adjusted to receive new WHR
equipment.
WHR system will be constructed in conjunction with water treatment plant project by ANTHC
management of force account labor or ANTHC management of contract labor. Therefore,
resources for labor, logistics and management are already in the process of being established.
3.5 Project Communications .
Discuss how ou lan to monitor the_ ro'ect and kee the Authorit informed of the status.
Project will be reported on through established ANTHC quarterly project reporting procedures.
Additional progress reports will be available from Project Manager upon request.
AEA 09-004 Grant Application Page 4 of 10 9/3/2008
/
&:j , ALASKA
~; ENERGY AUTHORITY
Renewable Energy Fund
Grant Application
3.6 Project Risk . ..,
Discuss otential roblems and how. · ou ,Would . address them.
Primary project risk revolves around uncertain impacts of weather on project schedule. Project
will start as scheduled, and will maintain flexibility to ensure the ability to adapt to weather or
any other extenuating circumstances that are encountered.
SECTION 4-PROJEC_T DESCRIPtiON AND TASKS. ---
• 'Tell us what the ptoject.is and now you, wiil meet the __ requirements outlined in Section 2 of
the RFA. The level of information 'wilt vacy accorC:tirlg ,to phase of the project you propose to
undertake with grant funds. 1
• If you are applying for grant funding fofo more than 'ore phase of a project provide a plan and
grant budget for completion of each pha_se.. , [
• If some work has already been completed on 'you~ project and you are requesting funding for
an advanced phase, submit information ·~ufficient 'to demonstrat~ that the preceding phases
are satisfied and funding for an advanced•phas.t:J is warranted. ·
4.1 Proposed Energy Resourc~ -~. h · , . ~ • f r
Describe the potential extent/amount of the energy· re~~ee that is available.
Discuss the pros and cons of your proposed energy re source vs. other alternatives that may be
available for the market to be served by your project. 1 ·
-·~ f.~ o( ... ..
According to a heat recovery analysis conducted for Ambler in December 2005 (See Attached),
energy equivalent to 8,864 gallons of fuel are available annually for recovery from the AVEC
power plant for utilization by the Ambler washeteria and water treatment plant. This equates to
over half of the energy required to operate both of these facilities.
The alternative of not utilizing waste heat will result in the City of Ambler's consumption of an
additional 8,864 gallons of fuel and an estimated $28,000 in additional operating costs per year.
' .
4.2.1 Basic ,~onfiguration of ExisttnifEnergy ~.yste1 ~ , '. ·
Briefly discuss the basic configuration of the existing el!'l~rgy~ system. Include information about
the number, size, a e, efficienc , and t e of eneratiort .
Local energy is currently provided by a power plant of three diesel generators as follows:
314 kW, installed 1998
271 kW, installed 1993
397 kW, installed 1990
4.2.2 Existing Energy Resources Used · ! • ~ .. ' 1 . ~ ~~ ......
Bri~fly discuss your understanding of the existing energ y resources. Include a brief discussion of
an· im act the ro·ect rna have on existin ener infr~~tructure and resources.
No impact to existing energy infrastructure and/or resources are anticipated as a result of this project.
AEA 09-004 Grant Application Page 5 of 10 9/3/2008
I .. ALASKA
' ENERGY AUTHORITY
Renewable Energy Fund
Grant Application
4.2.3 Existing Energy Market
Discuss existing energy use and its market Discuss im~cts your project may have o n energy
customers.
In Ambler, electricity is currently provided by the AVEC diesel generator plant and heating is provided by
oil-fired boilers/heaters . By receiving waste heat energy from AVEC at a substantially discou nted rate, the
City of Ambler will be able to lower the cost of operating the community washeteria and water treatment
plant, and in turn, lower its resident customers' utility bills. In addition, AVEC will apply any savings it
receives to reduce the fuel cost charge applied to Ambler, lowering electricity costs for the com munity as a
whole.
4.3 Proposed System .
Include information necessary to · describe t he system you· are intending to develop and address
potential system ·design, I~ rid ownership,_ pemi its, and en~ironmental issues.
<
. t
4.3.1 System Design . \ · ·
Provide the following information for the proposed reneJ able energy system:
• A description of renewable energy technology sJiecific to project location
• Optimum installed capacity
• Anticipated capacity factor
• Anticipated annual generation .
• Anticipated barriers '
· • • Basic integration concept
• Delive methods
This WHR system will provide energy equivalent to 8,864 gallons of fuel per year through the use of
glycol heat transfer loops between the AVEC power plant and the City's washeteria and future water
treatment plant.
This system is specified in greater detail, with accompanying site plan and schematic graphics, in the
attached "Ambler Heat Recovery Analysis." (See Attached).
4.3.2 La nd Ownership .. f·~
Identify Potential land ownership issues, including w~:ether site owners have agreed to the
.project or how you intend to approach land ownership aad access issues.
No land ownership issues are anticipated. System infrastructure will be constructed within City
and AVEC owned property and/or established utility easements.
~3~~~ 1
Provide the following information as it may relate to pe"ri.tting ,a(ld how you intend to address
outstanding permit issues. · •
• List of applicable permits
• Anticipated permitting timeline
• ldentif and discussion of , otential barriers · ,
All permits required for construction of this system will be applied for simultaneous to the
permitting process for construction of the water treatment plant. The permitting process will
commence approximately four months prior to construction start.
AEA 09-004 Grant Application Page 6 of 10 9/3/2008
4.3.4 Environmental . ~ -
Renewable Energy Fund
Grant Application
Address whether the following envirdh mental ~na fana ·t&1e issues apply, and if so how they will
be addressed: t
• Threatened or Endangered Sf?ecies . }\
Habitat issues ,
Wetlands and other protectea a.:ea'S'r
Archaeological and historical resources
Land development constr:iints
Telecommunications interference
• Aviation considerations
Visual, aesthetics impacts
• ldentif and discuss other otential barriers
The project will undergo environmental review by ANTHC to include establishment of concurrency by the
Stat Historic Preservation Officer, to ensure that no archeological significant resources will be impacted.
No environmental or land use issues are anticipated for this project.
4.4 Proposed New ·system Costs (Total Estimated c:fc;sts and proposed Revenues)
The level of cost information provideq will vary accordi 1g to the phase of funding requested and
any previous work the applicant may have done on the· project. Applicants must reference the
source of their cost data. For exim1ple: Applicants ·Records or Analysis, Industry Standards,
Consultant or Manufacturer's estimates. "'
4.4.1 Projec~ Develop?'ent C,o~t ': .' . ~ ~ ~ .,
Provide detailed project cost· info~ation oased on -~nc~rrent knowledge ar:~d understanding of
the project. Cost information should iliplude the follow inb {~
• Total anticipated project cost, and cost for this p'~se
• Requested grant funding · . ,
• Applicant matching funds -loans , capital contribJJtions, in-J<ind
• Identification of other funding sources .. · , :: ·
• Projected .capital cost of proposed renewable energy system
• Pro'ected develo ment cost of rQ sed rel'ilewable ene s stem
See Grant Budget Spreadsheet and Section 6 of this application
4.4.2 Project Operating and Main!en~nce Costs . t
Include anticipated O&M costs for new facilities con str~dted and how these would be funded by
the applicant. • . . · ~ ": . • ~ :
• Total anticipated project cost for tt;lis phase ,
• Re uested rant fundin
Annual O&M costs for this new system are estimated at $2,000 after completion of construction. The City
of Ambler will manage O&M costs by incorporating them into their City operating budget.
4.4.3 P~wer Purchase/Sale . 1 ~
The power purchase/sale information should inclyde th~Jollowing:
• Identification of potential pow~r ouyer\S)(customer(s)
• Potential ·power purchase/sales grice -at a .minimum. indicate a price range
• Pro osed rate of return from r~nt-funded · ro'ect
Heat sales agreement will be between City of Ambler and AVEC. Initial discussions with AVEC indicate
a maximum sales price for recovered waste heat energy at 50% of equivalent fuel cost, or $3.16 at 2008
prices. Final agreed upon pricing may be lower with completion of Ambler-AVEC heat sales agreement.
AEA 09-004 Grant Application Page 7 of 10 9/3/2008
4.4.4 Cost Worksheet I
Renewable Energy Fund
Grant Application
Complete the cost worksheet fonn which pr:oviaes su~acy)nformation that will be considered
in evaluatin the ro·ect. "'1 · ·
See attached form.
4.4.5 Business Plan
Discuss your plan for o~rating the· completed project so that it will be sustainable. Include at a
minimum ro osed business structur,e s and conce ts flat rna be considered.
The City of Ambler will operate and maintain the proposed waste heat recovery system as
infrastructure tied to the City's washeteria and water treatment plant. The system's estimated
annual O&M costs of $2,000 will be incorporated into the City operating budget. Required
system O&M will be carried out by local water & wastewater system operators, with the option of
outsourcing to private contract labor if necessary.
4.4.6 An~lysis and Recommendation·$ •
Provide information about the economic analysis a11a , the proposed project. Discuss your
recommendation for additional ro·ect develo ment work.
See section 2.4 & 2.5 for economic analysis. No additional project development requirements
are identified at this time.
SECTION 5-PROJECT BENEFIT , ;-
Explain the economic and public .benefits of your P._r.ojt;ct Include direct cost savings,
and how the people of Alaska will betJefit from ~e l?roiect . ... l .· ,. ,..
; I
The benefits information should inchJde the following: I
• Potential annual fuel displacement (gal and $) oVer the lifetime of the evaluated
renewable energy project I
• Anticipated annual revenue (based c;>n i.e. a Pr.o ~oseCt Power Purchase Agreement price,
RCA tariff, or avoided cost 9f ownerstlip) · ,·
• Potential additional annual incentives (i.e. tax credits) .
• P~tential additional annual ~evenue streams (i.e ~ gr~en _tag 'sales or other renewable
energy subsidies or programs that might be available) ·
I
• Discuss the non-economic ublic benefits to Ala$kans over the lifetime of the ro·ect
• 8,864 gal diesel fuel displaced through waste heat recovery
• $56,020 in fuel costs displaced annually (Based on 2008 average delivered diesel cost)
• $1.4 Million in reduced fuel usage over 25-year design life of system
• Over $700,000 in reduced water/sanitation service fees estimated for Ambler residents, based
on 50% discount power sale price (Sale price may be lower upon final Ambler-AVEC heat
sales agreement
• With revenues from recovered waste heat sales, AVEC will also reduce Ambler's fuel cost
charge
• Non-monetary benefits include the ability to provide affordable clean water and sanitation
services to community residents, a decreased reliance on fuel for heating, and a decreased
community diesel combustion emissions
AEA 09-004 Grant Application Page 8 of 10 9/3/2008
1-.v\ ALASKA
; ENERGY AUTHORITY
SECTION 6-GRANT BUDGET _ i
Renewable Energy Fund
Grant Application
Tell us how much your total project costs. Include any lnve~tments to date and funding sources,
how much is requested in grant 'funds, . a~;~d additional investments you will make as an ... applicant.
An estimated $65,000 in design and pre-construction development costs will be provided
through funding managed by ANTHC in conjunction with existing washeteria and water
treatment plant construction projects. Project construction funding requirements of $435,000 are
being applied for under this grant request. Annual O&M costs estimated at $2,000 will be
funded by the City of Ambler as part of their community operating budget.
See Grant Budget spreadsheet for additional detail.
AEA 09-004 Grant Application Page 9 of 10 9/3/2008
JAN-05-2005 WED 03:43AM AMAJDP FAX NO. 9074452174 P. 03/03
/&_)A~~§H~ Renewable Energy Fund
Grant Application
SECTION 7 -ADDITIONAL DOCUMENTATION AND CERTIFICATION ' ' '
SUBMIT THE FOLLOWING DOCUMENTS WITH YOUR APPLICATION:
o I •' : '•' ' o
A. Resumes of Applicant's Project Manager, key staff, partners, consultants, and
suppliers per application form Section 3.1 and 3.4
B. Coat Worksheet per application form Section 4.4.4
C. Grant Budget Form per application form Section 8.
D. An electronic version of the entire application per RFA Section 1.8
E. Governing Body Resolution per RFA Section 1.4
Enclose a copy of the resolution or other formal action taken by the applicant's
governing body or management that:
-authorizes thla application for project funding at the match amounts Indicated In
the application
-authorizea the Individual named aa point of contact to represent the applicant for
purposes of thla application
· states the applicant Ia In compliance with all federal atate, and local, laws
including existing credit and federal tax obllgatlona.
F. CERTIFICATION
The undersigned certiflea that thie application fora renewable energy grant Ia truthful
and correct, and that the applicant Ia In compliance with, and will continua to comply
with, all federal and state lawe Including existing credit and federal tex obllgatlona.
:~~~t~~<' Carolyn Ballot
I : • '•f • :· '•• ' ;o ,
{!A,H'f2A.-71 -ba1fof-:·~~·~~·;: " 'V'IfT(
". •,' v
::·:i;.;~r.:i .:,,.n~~·: Administrator, City of Ambler
;~'\g;~;f~-\~:~~~ f{oVt!fltber-~ SOD~
r
AEA 09-004 Grant Application Page 10 of 10 9/3/2008
I -ALASKA
ENERGY AUTHORITY Renewable Energy Fund
Application Cost Worksheet
Please note that some fields might not be applicable for all technologies or all project
phases. Level of information detail varies according to phase requirements.
,1. Renewable Energy Source
The Applicant should demonstrate that the renewable energy resource is available on a
sustainable basis.
Annual average resource availability. 270 MBH recoverable waste heat energy
8,864 gal fuel annual equivalent savings
Unit depends on project type (e.g. windspeed, hydropower output, biomasss fuel)
,2. Existing Energy Generation
a) Basic configuration (if system is part of the Railbelt1 grid, leave this section blank)
i. Number of generators/boilers/other 3 .------------------------------------ii. Rated capacity of generators/boilers/oth~r -314 kW, 271 kW, 397 kW
iii. Generator/boilers/other type
iv. Age of generators/boilers/other:·
v. Efficiency of generators/boilers/other
r,;:,. 1998, 1993, 1990 respectively
14.05 kWh/gal
b) Annual O&M cost (if system is part of the Railbelt grid, leave this section blank)
i. Annual O&M cost for labor $1,000 (estimated)
ii. Annual O&M cost for non-labor $1,000 (estimated)
~~--~----~-----------------------------
c) Annual electricity production and fuel usage (fill in as applicable) (if system is part of the
Rail belt grid, leave this section b' ank) ·
i. Electricity [kWh] __:1,_37_4....:..,2_8_5_k_W_H_--::-=:-:---..,---=---=:--::--:-:--:::-::-----------
ii. Fuel usage • '(', •• 1: ~. . . :
Diesel [gal] 97,830
Other
iii. Peak Load 296kW
iv. Average Load 157 kW
v. Minimum Load
vi. Efficiency 14.05 kWh/gal
vii. Future trends
d) Annual heating fuel usage (fill in as applicable)
t'
i. Diesel [gal or MMBtu]
ii. Electricity [kWh]
15,300 gallons (Water Treatment Plant & Washeteria)
1 The Rail belt grid connects all customers of Chugach Electric Association, Homer Electric Association. Golden
Valley Electric Association, the City of Seward Electric Department. Matanuska Electric Association and
Anchorage Municipal Light and Power.
RFA AEA 09-004 Application Cost Worksheet revised 9/26108 Page 1
.,,
/~,ALASKA
' ENERGY AUTHORITY Renewable Energy Fund
iii. Propane [gal or MMBtu]
iv. Coal [tons or MMBtu]
v. Wood [cords, green tons, dry tons]
vi. Other
Ia. Proposed System Design
I., a) Installed capacity -270 MBH wa~te heat recovered annually
b) Annual renewable electricity generation
i. Diesel [gal or MMBtu]
ii. Electricity [kWh]
iii. Propane [gal or MMBtu]
iv. Coal [tons or MMBtu]
v. Wood [cords, green tons, dry tons}
vi. Other
14. Project Cost
a) Total capital cost of new system
b) Development cost
c) Annual O&M cost of new system
d) Annual fuel cost
is. Project Benefits
a) Amount of fuel displaced for
i. Electricity ..
,. 'i>
ii. Heat 8,864 gal
iii. Transportation
b) Price of displaced fuel
c) Other economic benefits
d) Amount of Alaska public benefits
RFA AEA 09-004 Application Cost Worksheet
8,864 gal (equivalent waste heat recovered)
$435,000
$ 65,000
$ 2,000
n/a
$6.32 x 8,864 gal = $56.020 annually (Based on 2008
average delivered diesel cost)
$1.4 Million in reduced fuel usage over 25-year design
life of system, plus non-monetary benefits
Over $700,000 in reduced water/sanitation service
charges for Ambler residents
Improved air quality due to fewer air emissions from
less fuel usage
revised 9126108 · Page 2
I 1-ALASKA
• ENERGY AUTHORITY
Js. Power Purchase/Sales Price
a) Price for power purchase/sale
17. Project Analysis
a) Basic Economic Ana1ysis
~·
Project benefit/cost ratio 2.8
Renewable Energy Fund
$3.16 per gal of fuel equivalent (based on 50%
discount power sale price; Sale price may be lower
upon final Ambler-AVEC heat sales agreement)
. ' Payback 7.7 years
RFA AEA 09-004 Application Cost Worksheet revised 9126108 Page 3
BUDGET SUMMARY:
Milestone or Task
1. Design of WHR System
2. Construction of WHR System
BUDGET CATAGORIES:
Direct Labor and Benefits
Travel, Meals, or Per Diem
Equipment
Supplies
Contractual Services
Construction Services
Other Direct Costs
TOTAL DIRECT CHARGES
Alaska Energy Authority-Renewable Energy Fund
BUDGET INFORMATION
Ambler Waste Heat Recovery System Proposal Due: November 10, 2008
Local Match
Federal Funds State Funds Funds (Cash)
$48,750.00 $16,250.00
Milestone# or Task#
1 2
$261 ,000.00
$21,750.00
$43,500.00
$21,750.00
$65,000.00 $43,500.00
$43,500.00
$65,000.00 $435,000.00
3
$0.00
Local Match
Funds (In-Kind) Other Funds
$435,000.00
4 5
$0.00 $0.00
RFA AEA09-004 Budget Form
TOTALS
$65,000.00
$435,000.00
$0.00
6 TOTALS
$0.00
. $261,000.00
$21,750.00
$43,500.00
$21,750.00
$43,500.00
$43,500.00
$0.00
JAN-05-2005 WED 03:42 AH AHAJDP FAX NO. 9074452174
Cfty or Ana bier
P.O. Box 09
Ambler, AK 99786
Phone: (901) 445-2122 .a Fax: (907) 445-2174
E-MaU: cityofamblerak@yahoo.com
Re1olution ~ 4~
A RESOLUTION OF THE AMBLER CITY COUNCIL TO FORM ALL 'V APPROVE
APPLICATION TO THE ALASKA ENERGY AUTHORITY (AEA) AND FOR 435,000 IN FUNDING
FOR A WASTE HEAT RECOVERY PROJECT AND FOR RELATED PURPOSES.
P. 02/03
WHEREAS: tbe City of Ambler baa a USDA Rural Development Program f\lnded projeet for a
new water treatment plant, and
WHEREAS: a waste heat recovery system would greatly reduce the operation cost of the new water
treatment plant and washeteria and help ensure they are sustainable; and
WHEREAS: a feasibility study c:oadueted in 2005 strongly supports the cost benefit of
a waste heat recovery system, especially with risin1 fuel costs or price
spikes ia the coat;
WHEREAS; the City of Ambler will be responsible for the operation and maintenance of
this system.
NOW THEREFORE BE JT RESOLVED that: tbe Ambler City ofCoudcil formally approves
application for f\andhaa for a waste heat recovery project tbrou1h the Alaaka Energy Authority
(AEA) and for 435,000 la fuading for a waste heat recovery project and for related purposes.
Be It Further Resolved That the Mayor of the City of Ambler is Hereby authorized to
negotiate and execute any and all documents required for the said reallocations of project
fund.
PASSED ("\ND APPR_9VED By the City Council of Ambler on this 7-th.J-.11 of
[\lo\&V\00'"' ~~ :w-r-.,
Signed:~M~or)
Updated Cost/Savings Estimate to Accompany
December 2005 ""Ambler Heat Recovery Analysis by Alaska Energy and Engineering
Facility Served
1est . t-uel :sav1ngs lt:St. 1 est. l,;onstructlon I :Simple
Savings, Gal Value,$ Construction Cost, 2009 Payback,
Water Plant Only 7,671 $48,481 $244,318 $346 924 7.2
Waseteria/City Office C 5,689 $35,954 $243,743 $346108 9.6
Both Facilities 8,864 $56,020 $305,248 $433,443 7.7
Ambler Heat Recovery Analysis
1.0 INTRODUCTION
December 31, 2005
Alaska Energy and Engineering
Alaska Energy and Engineering, Inc. was retained by Rural Energy Programs/AEA to
review the feasibility of providing available recovered heat from the existing AVEC
power plant to the proposed new cio/ water plant and washeteria in Ambler, and
provide a budgetary project cost est1mate based on Force Account Construction,
including Design Engineering and Construction Oversight.
There is an existing heat recovery system in Ambler that used to provide recovered
heat to the existing water plant and the school Teachers Quarters (old school). It is
reported that the heat recovery system has been out of service for many years, due in
part to failed heat exchangers and possibly failed arctic piping. For purposes of this
report, it has been assumed that the existing heat recovery module at the power plant
will be reused with minor modifications, including refurbishing or replacing the existing
heat exchanger and installing new circulating pumps.
Additional assumptions have been made in the development of this report including
but not limited to the proposed arctic piping route, building heating loads, and flow
rates and pressure drops of the existing power plant cooling system and heat
exchanger. It is anticipated that refinements in arctic pipe size and routing, pump and
heat exchanger sizing, and other design elements will be required if the project
progresses to final design. However, unless significant changes are required, the
project cost is not expected to exceed the estimate contained herein.
Available as-built information was obtained from the Alaska Village Electric
Cooperative (AVEC) regarding the existing generators cooling system and heat loads
of the AVEC power plant. Available heat load and design information were obtained
from Larsen Consulting Group for the proposed water plant and washeteria. No site
visits were made to confirm accuracy of information obtained.
2.0 OVERVIEW
ANTHC is currently developing a new water plant and washeteria in Ambler. The
purpose of this study is to provide an estimate of the heat that can be recovered from
the jacket water of the AVEC power plant diesel engines and used to offset heating oil
consumption at nearby public buildings. Useable recovered heat is quantified in
gallons of heating fuel saved using a heating valwe of 134,000 BTU per gallon of #1
arctic diesel fuel and an overall boiler efficiency of 73%. This analysis only considers
the potential to provide recovered heat to the new water plant and washeteria.
The straight-line distance from the AVEC plant to the new water plant (adjacent to the
existing water plant) is approximately 570-feet. The new washeteria will be located in a
new addition to the existing City Office and is approximately 550-feet from the AVEC
plant. Based on a Business Plan prepared by CRW Engineering Group, the estimated
water plant and washeteria average annual heating fuel consumption is approximately
9,600-gallons and 3,700-gallons, respectively. It is estimated the existing City Office
uses about 2,000-gallons of heating fuel, annually (fuel records were not provided).
The combined annual fuel use of the washeteria/City Office is estimated at 5,700-
galons/year, of which 2,800-gallons is for space heating and 2,900 gallons is for non-
seasonal loads (showers, washing machines, and dryer make-up air hydronic heat).
A spreadsheet has been developed to estimate the recoverable heat based on
monthly total electric power production, engine heat rates, building heating demand,
heating degree days, and passive losses for plant heat and piping. The spreadsheet
utilizes assumed time-of-day variations for electric power production and heat
demand. Power Cost Equalization data for fiscal year 2005 was used in the
1
Ambler Heat Recovery Analysis December 31, 2005
Alaska Energy and Engineering
spreadsheet. The estimated heat rejection rate for a Detroit Diesel DDEC3 Series 60
was used for loads from OkW to 200kW, and a Cummins KTA19 at 1800 rpm was
used for loads over 200kW. Heating degree-days for Kobuk were utilized for this site.
All arctic piping is assumed to be routed below grade. All hydronic piping between
modules is assumed to be 3" pipe with 2" of fiberglass insulation and installed above
grade. Information provided by AVEC was used to estimate the heating load for the
power plant, which includes two off-line generation modules, one control module, one
wood-frame insulated crew quarters, and one wood-frame uninsulated storage shed.
The uninsulated storage shed consumes excessive heat.
In order to improve available recovered heat, for· this study it has been assumed the
existing uninsulated shed will be replaced with an insulated connex brought in as part
of the water ~lant I washeteria project. The insulated connex heat load is estimated to
be about 1/5 the heat load of the existing shed.
3.0 OPTIONS FOR FACILTIES TO RECEIVE RECOVERED HEAT
The spreadsheet uses monthly heating degree-days to distribute annual fuel
consumption by month. The monthly heat load is then broken down by hour of the
day using an estimated daily temperature variation. This results in a "peak" load for
each month, which occurs in the middle of the night. This "peak" represents a daily
maximum of the average load for that month, not the absolute peak load. Since a
heat recovery system cannot necessarily meet the actual design peak heat load of a
facility, the average is a good load to design to. To maximize utilization of available
heat, the demand for heat should exceed the available heat. With arctic pipe to both
facilities the "peak" heat available for delivery to the buildings is about 270 MBH. At
this load a flow rate of approximately 50 GPM is required to limit the temperature drop
in the piping loop to approximately 12F.
Following is a summary of the heat demands, percentage of the total heat demand,
and preliminary recommended flow rates for each facility:
Facility
Water Plant
Wash/City Off.
Total
Building %of Total %of Heat Flow
Demand Demand Available Avail.
346 MBH 69% 129% 35 GPM
157 MBH 31% 59% 15 GPM
503 MBH 100% 188% 50 GPM
Heat
Avail
189 MBH
81 MBH
270 MBH
Based on this it appears there are three combinations of load that would work
effectively to utilize most of the heat available: 1) the water plant only, 2) the
washeteria/city office, and 3) water plant and washeteria/city office. Following is a
summary of estimated heat utilization in equivalent gallons of fuel and the percentage
of heat available for each combination of buildings:
Est'd Annual Est'd Heat %of Annual
Facili~ Fuel Use Delivered Fuel Use
Water Plant Only 9,600 Gal 7,671 Gal 80%
Washeteria/City Office 5,700 Gal 5,689 Gal* 97%
Both Buildings 15,300 Gal 8,864 Gal 58%
* Does not account for peak DHW loads
2
Ambler Heat Recovery Analysis December 31, 2005
Alaska Energy and Engineering
4.0 HEAT RECOVERY SYSTEM DESCRIPTION AND OPERATION:
The heat recovery system will capture heat generated by the AVEC power plant that is
currently rejected to the atmosphere by the radiators. The recovered heat will be
transferred via below grade arctic piping to the end-users. The objective is to reduce
the consumption of expensive heating fuel by utilizing available recovered heat.
Although heat recovery is a viable method of reducing heating fuel costs, a
recovered heat system is a passive heat source and it is imperative that the end-
user facility heating systems are operational at all times.
Hot engine coolant is piped to a plate and frame heat exchanger located in the heat
recovery module (HRM). Heat is transferred frorn the engine coolant to the recovered
heat loop without mixing the fluids. The recovered heat fluid is pumped through arctic
pipe to the end-user facilities, and is tied into the end-user heating systems using plate
heat exchangers.
AVEC PLANT TIE-IN:
The existing AVEC cooling system is mostly 3" Victaulic piping and uses a Grundfos
booster pump to circulate the engine coolant to the Heat Recovery Module and
radiators. It is reported the existing radiator fan motors are single speed motors with
on/off control provided by aquastats in the engine coolant return piping.
No modifications to the AVEC cooling system are included, except modifications
required in the Heat Recovery Module to connect the new heat exchanger to the
cooling system using a pumped secondary loop.
HEAT RECOVERY MODULE:
The existing HRM is located adjacent to the Butler Building. It is a 9' x 15' insulated
panel structure set on an 1-beam/treated heavy timber foundation. The HRM will be
equipped with a plate heat exchanger, heat recovery loop circulating pumps, and
arctic piping loop expansion tank. A new electric service entrance with meter is
required to provide power to the ventilation system, circulating pumps, and module
lighting. Stainless steel flex hoses are used at the piping connections to the recovered
heat module to provide flexibility for differential movement between the HRM and
AVEC power plant. It is also assumed that some minor improvements/repairs will be
required to the HRM exterior.
The piping inside the HRM and between the Butler Building and the HRM is Schedule
40 steel pipe. All piping will be insulated with a minimum of 1" insulation and have an
aluminum jacket where exposed to the weather. All valves are lug style butterfly
valves with seals that are compatible with 50150 glycol/water mixtures at 200F.
Flexibility is provided where required for thermal expansion and differential movement.
Air vents, thermometers, pressure gauges, drain valves and pressure relief valves are
also provided.
3
Ambler Heat Recovery Analysis
ARCTIC PIPING (Recovered Heat Loop):
December 31, 2005
Alaska Energy and Engineering
The proposed arctic piping is a pre-insulated buried piping system. The piping will be
routed from the AVEC plant, southeast in the existing rights-of-way to the intersection
of Dahl Avenue and Redstone Avenue, then southwest down Redstone Avenue to the
new water plant. Enroute to the water plant, the arctic piping will branch off and
continue southeast on Redstone Avenue Extension to the washeteria/City Office.
The arctic piping system is a pre-insulated, bonded piping system. The pipes consist
of Schedule 40 steel carrier pipe and HOPE outer jacket bonded to polyurethane foam
insulation. The carrier piping will have all welded joints. The system comes complete
with all fittings, tools and accessories required for assembly. The recovered heat fluid
will be a 50/50 Propylene Glycol/Water solution to provide freeze protection to the
piping.
WATER PLANT and WASHETERIA/CITY OFFICE TIE-IN:
Plate heat exchangers will be located in the water plant and washeteria/city office
mechanical rooms, and tied into the boiler return piping to pre-heat the boiler water
prior to entering the boiler. The maximum anticipated delivered recovered heat supply
temperature is about 180F. If there is not sufficient recovered heat to meet the
heating load, the boilers will fire and add heat.
Piping will be type L copper pipe and supported as required . Isolation valves will be
sweat style bronze ball valves or flanged butterfly valves . All piping will be insulated
with a minimum of 1" insulation with an all-service jacket. Flexibility will be provided
where required for thermal expansion and differential movement. Air vents,
thermometers, pressure gauges, drain valves and pressure relief valves will also be
provided.
RIGHTS-OF-WAY ISSUES:
There does not appear to be a conflict with right of ways for the arctic piping between
the power plant and the end-user buildings, as the route is entirely within existing road
rights-of-ways, and on City and AVEC property .
A Heat Sales Agreement and Right-of-Entry Agreement will be required from AVEC
for the City to renovate the recovered heat module and to route the arctic piping on
AVEC property.
5.0 SYSTEM CAPACITY
A heat recovery simulation spreadsheet is used to estimate the potential recoverable
heat based on monthly total electric power production, engine heat rates , building
heating demand, heating degree days, and passive losses for plant heat and piping .
The spreadsheet utilizes assumed time-of-day variations for electric power production
and heat demand . All estimates are averages based on monthly totals and do not
reflect peak heat available or utilized.
4
Ambler Heat Recovery Analysis
5.1 Heat Demand
December 31, 2005
Alaska Energy and Engineering
The heat demand for the water plant and washeteria was estimated based on data
provided in the Ambler Business Plan prepared by CRW Engineering Group. The
combined annual heating fuel consumption for the new water plant and new
washeteria/city office is 15,300 gallons (water plant is 9,600 gallons and
washeteria/city office is 5,700 gallons). Approximately 2,800 gallons is estimated to
be non-seasonal (hot water for showers, washing machines and dryer preheat coils)
and 12,500 gallons is seasonal.
From the spreadsheet, the highest average heat 'demand is 343 MBH (Water Plant =
236 MBH, washeteria/office= 107 MBH) in February. This is based on heating degree
days (-10F average ambient temperature). For 1% design day (-45F ambient
temperature) the combined maximum heat load is estimated to be 503 MBH (Water
Plant = 346 MBH, washeteria/office = 157 MBH), not including peak domestic hot
water load.
5.2 Heat Available
The AVEC power plant has two primary units - a Detroit Diesel Series 60 DDEC3
rated 314 kW at 1800 rpm and a Cummins KTA19 rated 397 kW at 1800 rpm. The
Series 60 ran 6585 hours and the KTA19 ran 21 '97 hour in 2004. It is assumed the
Series 60 runs when loads are below about 200kW, and the KTA19 runs when loads
are greater than 200kW. The Series 60 has an air-cooled aftercooler, and the jacket
water heat rate is approximately 1,360 BTUH per kW electric load. The KTA19 has a
jacketwater aftercooler, which results in a heat rate of about 2,255 BTUH per kW
electric load.
From the spreadsheet, the highest average delivered heat is 268 MBH -based on
average power production. The peak electric load in FY2005 was 302 kW, occurring
in January 2005. Winter daily peak loads are estimated to be approximately 280 kW.
The heat output from the KTA19 at 280 kW is approximately 630 MBH. Fixed losses
for arctic piping and plant piping are estimated at 68 MBH and variable losses for plant
heat and exterior piping are estimated at 142 MBH on a peak design day. Net peak
heat available is approximately 420 MBH. Since the peak heat demand exceeds the
heat available, the heat recovery system should be designed based on heat available.
5.3 Flow Rates
As indicated in Section 2.0, an arctic pipe flow rate of 50 GPM was selected so the
heat recovery loop temperature differential would not exceed about 12F at average
winter heat output. However, since the KTA19 . operates much of the cold winter
months, the heat recovery system should be designed to utilize the higher available
heat from the KTA19. For 420 MBH at 50 GPM, the delta-Twill be 19F-which is a
reasonable temperature drop for a boiler heating system. It is expected that the
washeteria heat demand will be greater during "daytime" hours -due to the high
domestic hot water heat load, whereas the water plant heat load will be greatest late
at night.
In order to regulate the heat recovery loop flow rate to each end-user, it is proposed to
utilize a thermostatically operated regulating (throttling) valve in the heat recovery loop
at each end-user heat exchanger. These valves will throttle the recovered heat flow
through the end-user heat exchanger based on the building return temperature. As the
return temperature from the building to the heat exchanger increases, the recovered
heat flow from the power plant will be reduced. In this way, when one end-user heat
load is low, more of the available heat (flow) will go to the other end-user. Additionally,
a variable speed drive will be used to control the heat recovery loop flow rate in order
5
Ambler Heat Recovery Analysis December 31 , 2005
Alaska Energy and Engineering
to maximize the heat delivered when the KTA19 is online and to help prevent
overcooling the engine cooling system when the Series 60 is online.
The Series 60 coolant flow is about 80 GPM, and the KTA19 coolant flow is about 145
GPM at rated load. To avoid additional external head on the generator cooling system
pumps, a secondary pumped loop will be used off of the jacket water cooling loop to
the radiators. The secondary pumped flow needs to be less than 80 GPM to avoid
dilution of hot coolant when the Series 60 is on-line so will set the secondary loop flow
equal to arctic pipe flow rate of 50 GPM.
5.0 EQUIPMENT SELECTIONS
5.1 Heat Exchangers
Based on initial selected flow rates, brazed plate heat exchangers will be adequate for
all locations. The total end-user heat exchanger capacity is greater than the power
plant heat exchanger capacity, to benefit from the increased flow resulting from use of
the thermostatically operated regulating valves. Initial heat exchanger selections are
as follows.
HX-1: (Power Plant) Ameridex SL 140TL-LL-80 or equal. 400 MBH capacity.
Primary: 50 GPM 190F EWT (50% ethylene glycol), 1.0 PSI max WPD
Secondary: 50 GPM 180F LWT (50% propylene glycol) 1.0 PSI max WPD
HX-2: (Water Plant) Ameridex SL 140TL-LL-80 or equal. 350 MBH capacity.
Primary: 50 GPM 180F EWT (50% propylene glycol), 1.0 PSI max WPD
Secondary: 50 GPM 175F LWT (50% propylene glycol) 1.0 PSI max WPD
HX-3: (Washeteria/City Office) Ameridex SL 140TL-LL-80 or equal. 200 MBH cap.
Primary: 22 GPM 180F EWT (50% propylene glycol), 1.0 PSI max WPD
Secondary: 20 GPM 175F LWT (50% propylene glycol) 1.0 PSI max WPD
5.2 Arctic Pipe Sizing
The length of heat recovery loop piping between the power plant and water plant is
approximately 1500'. The arctic pipe is sized so the pressure drop is less than 1' head
per 100' to limit pumping energy. Using 3" piping, the unit pressure drop is
approximately 0.67' per 1 00' at 50 GPM.
5.3 Circulating Pumps
P-HR1: HX-1 Primary circuit off engine coolant loop
Flow= 50 GPM, Head= 2' (HX) + 4' (piping)= 6'
Select: Grundfos UPS 40-40, 50 GPM at 6' TDH, 1/3 HP, Speed 3
P-HR2: Heat recovery loop to water plant
Flow= 50 GPM, Head= 2' (HX-1) +2' (HX-2) + 20' (piping)= 24'
Select: Grundfos TP40-80/2, 50 GPM at 24' TDH, 3/4 HP, variable speed
motor
5.4 Expansion Tank
See spreadsheet for expansion calculations. Total heat recovery loop volume is
estimated at 950 gallons. Pressure relief at the power plant heat exchanger will be 50
PSIG, so will size tank to limit operating pressure to 90% of maximum (45 PSIG).
High point of system approximately 16' above base of expansion tank so 7 PSIG
minimum is pressure required at the expansion tank to keep heat loop system
6
Ambler Heat Recovery Analysis December 31, 2005
Alaska Energy and Engineering
pressure positive. Will set tank pre-charge to 10 PSIG to provide 3 PSIG positive
pressure at high point. 12.1 PSIG fill pressure required at 40F to maintain 10 PSIG at
OF. Will fill system cold to 12 PSIG to provide minimum 2 PSIG pressure above
expansion tank pre-charge and 8 gallons of glycol in the tank at 40F, so the tank will
not go dry at OF.
ET-1: Minimum requirements 97.5 gallon tank and 67.0 gallon acceptance
Select: Amtrol L300, 105 gallon tank and 9~.5 gallon acceptance
6.0 CONCLUSIONS AND RECOMMENDATIONS
The project has a relatively high construction cost due to the distance between the
power plant and end-user building(s). However, based on a cost of fuel of $4.15/gallon
(from the Business Plan), the simple payback for all three options are about 10 years,
or less. ·
Estimated Project Cost And Savings:
Facility Served
Water Plant Only
Washeteria/City Office
Both Buildings
Est'd Fuel
Savings
7,671 Gal
5,689 Gal*
8.864 Gal
7
Value at
$4.15/gal
$31,835
$23,610
$36,786
Est'd Const Simple
Cost Payback
$244,318 7.8 yrs
$243,743 10.3 yrs
$305.248 8.3 yrs
c:J ooo nnn
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Dimensional Data-·rable M
A 8
Model Diameter Overall
No. Height
AX-15 12 19
AX-20 12 25
AX-40 12 49
AX-60 16 421/4
AX-60V 16 43
AX-80 16 55
AX-80V 16 56
AX-100 16 68
AX-100V 16 69
AX-120 24 401/4
AX-120V 24 441/4
AX-144 24 45%
AX-144V 24 49%
AX-180 24 52112
AX-180V 24 56112
AX-200 24 63
AX-200V 24 fJl
AX-240 24 741/4
AX-240V 24 76%
200L 24 38%
300L 24 523"
400L 24 661/4
SOOL 24 801A
600L 30 65
800L 30 83
1000L 36 731/z
1200L 36 85
7
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1400L 36 981/4
1600L 48 711/4
2000L 48 85%
Series
l
B
I.A. Armstrong Limited
!3 Bertrand Avenue ·
)carborough, Ontario
~anada, M 1 L 2P3
ret: (41-6) 755-2291
=ax: (416) 759-9101
'ORM NO.: 6713·b
Armstrong Pumps Limited
Peartree Road, Stanway
Colchester, Essex
United Kingdom, C03 5JX
Tel: 0206-579491
Fax: 0206-760532
Connection
Size
112
1/2
1/2
1f2
1/z
112
1/2
112
112
1
1
1
1
1
1
1
1
1
1
11/z
1112
1112
Wz
1112
1112
1112
1112
11.-lz
11/z
1112
tA-
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Series
AX-V B
j
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Tank Acceptance
Weight Volume Volume Volume
(lbs) (liters) (Gallons) (Gallons)
46 29 7.8 2.5
59 41 10.9 2.5
114 82 21.7 5.0 --
139 127 33.6 11.1
145 127 33.6 11.1
196 168 44.4 22.2
201 168 44.4 22.2
231 211 55.7 22.2
2:rl 211 55.7 22.2
266 257 68.0 34.0
285 257 68.0 34.0
233 291 77.0 34.0
299 291 77.0 34.0
286 341 90.0 34.0
305 341 90.0 34.0
326 416 110.0 34.0
335 416 110.0 34.0
397 498 131.7 44.4
401 498 131.7 44.4
204 200 53 47.7
250 300 79 71.1··
295 400 105 94.5
340 500 132 118.8
555 600 158 142.2
680 800 211 189.9
760 1000 246 221.4
864 1200 317 285.3
968 1400 :riO 333.0
1580 1600 422 379.8
1810 2000 528 475.2
Series AX
~--------8--------~
Armstrong Pumps Inc.
93 East Avenue
North Tonawanda, New Yor1c
U.S.A. 14120-6594
Tel: (716) 693-8813
Fax: (716) 693-8970
1-800-FLDW-845
Armstrong Darling Inc.
2200 Place Transcanadienne
Dorval, Quebec
Canada, H9P 2X5
Tel: (514) 421-2424
Fax: (514) 421-2436
PAGE 4 OF 4
PriniAri in r."n"ti"
Ambler Exp Tank Sizing.xls
Glycol TypeG[1= Dowtherm SR-1 50/50; 2 = Dowfrost 50/50]
System
Volume: 950 gallons From Design Cales
Glycol
Expansion: 0.0705 Total Antifreeze Expansion (OF to 200F) from Table BELOW
B = Fill Pressure at Exp Tank
C =Max Operating Pressure at Exp Tank
D = Exp Tank Precharge Pressure
IPrecharge Pressure
I Initial Fill Press at 40F
Option A Option 8 Option C I
51 81 10!
6.61 9.91 12.11
2/26/2006
P1V1=P2V2: . P2={(Precharge+14.7)*(Exp Tank Voi)/(Exp Tank Val-Initial Fill Vol)]-14.7
~-P2 ,.;~lnit. Ell'Aressu~ta~. :·r=aYi'de!4Jf8!~;1-iaJYet.rYtmmatOi} .. ·t 'tEx 7f.S'ii~~~~rfiliitenf ' ·r··· ·· :·: \.'. :
'u• : " .~.· ~ · ~~~-•"->. ~ •. ~9. ~,..'-.J-.r".W'~i;P, L~A'-.'f ... ~,·~-:·o•' \~ _...;:.,......,n ,~-li"fl'."·~-~·· ~ U! P; ;,.~,~~~~.1-",..,!"'"~"; "' p --•
Initial Fill Volume in Exp Tank is required to keep system pressure positive at OF
% Volume Expansion
Antifreeze OF-40F 40F-200F OF-200F -20Fto40F
50/50 Dowtherm SR-1/H20 0.0064 0.05 0.0564 0.0085
50/50 Dowfrost Prop/H20 0.0085 0.062 0.0705 0.0119
2003 6364
2003 6724
2003 7624
Ambler 4 2003 7855
Ambler 5 2003 7652
Ambler 6 2003 8274
Ambler 7 2003 8094
Ambler 8 2003 7316
Ambler 9 2003 8146
Ambler 10 2003 7122
Ambler 11 2003 7073
Ambler 12 2003 6645
88889
Ambler 1 2004 6421
Ambler 2 2004 7121
Ambler 3 2004 7668
Ambler 4 2004 8778
Amble r 5 2004 10257
Ambler 6 2004 10727
Ambler 7 2004 10924
Ambler 8 2004 10531
Ambler 9 2004 10454
Ambler 10 2004 8084
Ambler 11 2004 7831
Ambler 12 2004 6600
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Ambler 2 2005 7594
Ambler 3 2005 7714
Ambler 4 2005 8178
Ambler 5 2005 8826
Ambler 6 2005 9266
Ambler 7 2005 9411
Ambler 8 2005 8144
Ambler 9 2005 8242
Ambler 10 2005 8553
Ambler 11 2005 7232
Ambler 12 2005 5932
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