JCM_ID_AM002_ver02.003.0
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Joint Crediting Mechanism Approved Methodology ID AM002“Energy Saving by Introduction of High Efficiency Centrifugal Chiller”
A. Title of the methodology
Energy Saving by Introduction of High Efficiency Centrifugal Chiller, Version 2.03.0

B. Terms and definitions
Terms
Centrifugal chiller

Definitions
A centrifugal chiller is a chiller applying a centrifugal
compressor. It is commonly used for air-conditioning with hugecooling load, e.g., buildings, shopping malls or factories etc.

Cooling capacity

Cooling capacity is the ability of individual chiller to remove
heat. In this methodology, “cooling capacity” is used to represent
a cooling capacity per one chiller unit and not for a system withmultiple chiller units.

Periodical check

Periodical check is a periodical investigation of chiller done by
manufacturer or agent who is authorized by the manufacturer, inorder to maintain chiller performance.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction This methodology applies to the project that aims for savingenergy by introducing high efficiency centrifugal chiller for thetarget factory, commerce facilities etc. in Indonesia.

Calculation

ofemissions

reference Reference emissions are GHG emissions from using reference
chiller, calculated with power consumption of project chiller,
ratioofCOPs(CoefficientOfPerformance)ofreference/project chillers and CO2 emission factor forelectricity consumed.
Calculation
emissionsofproject Project emissions are GHG emissions from using projectchiller, calculated with power consumption of project chiller

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and CO2 emission factor for electricity consumed.
Monitoring parameter⚫

Power consumption of project chiller⚫

Electricity imported from the grid, where applicable⚫

Operating time of captive electricity generator, whereapplicable

D. Eligibility criteria

This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1

Project chiller is a centrifugal chiller with a capacity of less than 1,250 USRt.
* 1 USRt = 3.52 kW

Criterion 2

COP for project chiller i calculated under the standardizing temperature
conditions* (COPPJ,tc,i) is more than 6.0.
COPPJ,tc,i is a recalculation of COP of project chiller i (COPPJ,i) adjusting
temperature conditions from the project specific condition to the standardizing
conditions. COPPJ,i is derived in specifications prepared for the quotation orfactory acceptance test data at the time of shipment by manufacturer.
[equation to calculate COPPJ,tc,i]
𝐂𝐎𝐏𝐏𝐉,𝐭𝐜,𝐢 = 𝐂𝐎𝐏𝐏𝐉,𝐢 × [(𝐓𝐜𝐨𝐨𝐥𝐢𝐧𝐠−𝐨𝐮𝐭,𝐢 − 𝐓𝐜𝐡𝐢𝐥𝐥𝐞𝐝−𝐨𝐮𝐭,𝐢 + 𝐓𝐃𝐜𝐡𝐢𝐥𝐥𝐞𝐝+ 𝐓𝐃𝐜𝐨𝐨𝐥𝐢𝐧𝐠 ) ÷ (𝟑𝟕 − 𝟕 + 𝐓𝐃𝐜𝐡𝐢𝐥𝐥𝐞𝐝 + 𝐓𝐃𝐜𝐨𝐨𝐥𝐢𝐧𝐠 )]COPPJ,tc,i: COP of project chiller i calculated under the standardizing
temperature conditions* [-]COPPJ,i: COP of project chiller i under the project specificconditions [-]Tcooling−out,i: Output cooling water temperature of project chiller i set
under the project specific condition [degree Celsius]

Tchilled−out,i: Output chilled water temperature of project chiller i set
under the project specific condition [degree Celsius]

TDcooling: Temperature difference between condensing temperatureof refrigerant and output cooling water temperature
1.5 degree Celsius set as a default value [degree Celsius]

TDchilled: Temperature difference between evaporating temperatureof refrigerant and output chilled water temperature,1.5 degree Celsius set as a default value [degree Celsius]

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Criterion 3*The standardizing temperature conditions to calculate COPPJ,tc,i
Chilled water:
output7 degree Celsius
input
12 degree Celsius
Cooling water:
output 37 degree Celsius
input
32 degree Celsius
Periodical check is planned more than four (4) times annually.

Criterion 4Ozone Depletion Potential (ODP) of the refrigerant used for project chiller iszero.

Criterion 5Plan for not releasing refrigerant used for project chiller is prepared. In the caseof replacing the existing chiller with the project chiller, refrigerant used for theexisting chiller is not released to the air.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Power consumption by reference chiller

CO2Project emissions
Emission sources

GHG types

Power consumption by project chiller

CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying power consumption of project chiller, ratioof COPs for reference/project chillers, and CO2 emission factor for electricity consumed.
The COP of reference chiller, which is a centrifugal chiller, is conservatively set as a default
value in the following manner to ensure the net emission reductions.
1. The COP value tends to increase as the cooling capacity becomes larger.
2. The reference COP, which has a certain cooling capacity, is set at a maximum value incorresponding cooling capacity range.
3. The maximum values of COP in each cooling capacity ranges are defined as COPRE,i as
described in Section I.
F.2. Calculation of reference emissions
𝐑𝐄𝐩 = ∑{𝐄𝐂𝐏𝐉,𝐢,𝐩 × (𝐂𝐎𝐏𝐏𝐉,𝐭𝐜,𝐢 ÷ 𝐂𝐎𝐏𝐑𝐄,𝐢 ) × 𝐄𝐅𝐞𝐥𝐞𝐜 }𝐢I-3

JCM_ID_AM002_ver02.003.0
Sectoral scope: 03: Reference emissions during the period p [tCO2/p]

REp

ECPJ,i,p : Power consumption of project chiller i during the period p [MWh/p]
COPPJ,tc,i : COP of project chiller i calculated under the standardizing temperature conditions[-]
COPRE,i : COP of reference chiller i under the standardizing temperature conditions [-]EFelec : CO2 emission factor for consumed electricity [tCO2/MWh]G. Calculation of project emissions

𝐏𝐄𝐩 = ∑(𝐄𝐂𝐏𝐉,𝐢,𝐩 × 𝐄𝐅𝐞𝐥𝐞𝐜 )𝐢PEp: Project emissions during the period p [tCO2/p]

ECPJ,i,p : Power consumption of project chiller i during the period p [MWh/p]
EFelec : CO2 emission factor for consumed electricity [tCO2/MWh]

H. Calculation of emissions reductions
𝐄𝐑 𝐩 = 𝐑𝐄𝐩 − 𝐏𝐄𝐩
ER p: Emission reductions during the period p [tCO2/p]

REp: Reference emissions during the period p [tCO2/p]

PEp: Project emissions during the period p [tCO2/p]

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter
EFelecDescription of data
CO2 emission factor for consumed electricity.

Source[Grid electricity]

When project chiller consumes only grid electricity or The

mostrecent

captive electricity, the project participant applies the value available at
CO2 emission factor respectively.

thetimeof

When project chiller may consume both grid validation is applied
electricity and captive electricity, the project and fixed for theparticipant applies the CO2 emission factors for grid monitoring
and captive electricity proportionately.

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periodthereafter. The data

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Parameter

Description of data

Sourceissourced

Proportion of captive electricity is derived from “Emission
dividing captive electricity generated by total offrom
Factors

Electricity

electricity consumed at the project site. The total Interconnection
electricity consumed is a summation of grid Systems”, National
electricity imported (EIgrid,p) and captive electricity Committee on Cleangenerated (EGgen,p)* during the monitoring period.

Development
Mechanism* Captive electricity generated can be derived from Indonesian DNA formetering electricity generated or monitored operating CDM
time (hgen,p) and rated capacity of generator (RCgen).

unlessotherwise instructedby[CO2 emission factor]

theJointCommittee.

For grid electricity: The most recent value available [Captive electricity]from the source stated in this table at the time of CDM

approved

validation

smallscale

For captive electricity: 0.8* [tCO2/MWh]methodology:*The most recent value available from CDM AMS-I.A
approved small scale methodology AMS-I.A at thetime of validation is applied.
COPRE,iThe COP of the reference chiller i is selected from the Specifications

ofdefault COP value in the following table in line with projectchilleri

cooling capacity of the project chiller i.

fortheprepared

quotation or factory
COPRE,i
Cooling
capacity perx≤350

unit (USRt)
COPRE,i

5.46

acceptance test data

350<x

550<x

750<x

≤550

≤750

<1,250

5.69

5.90

6.03

by manufacturer.
The default COP
value

is

derivedfrom the result ofsurvey on COP ofCooling
capacity/unit(USRt)

x<300

300≦
x<450

450≦
x<500

500≦
x<700

700≦
x<1,250

COPRE,i

4.92

5.33

5.595.85

5.94

chillers

frommanufacturers thathashighmarketshare. The survey
should prove the use

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Parameter

Description of data

Sourceofclear

methodology.
The COPRE,i should
berevisednecessary

iffromsurvey result whichis conducted by JCor

project

participants

every

three years.
COPPJ,iThe COP of project chiller i under the project specific Specifications

ofcondition.

projectchilleripreparedfor

thequotation or factory
acceptance test databy manufacturer
Tcooling−out,iOutput cooling water temperature of project chiller i Specificationsof

set under the project specific condition.

project

chilleri

preparedfor

thequotation or factory
acceptance test databy manufacturer
Tchilled−out,iOutput chilled water temperature of project chiller i Specifications

ofset under the project specific condition.

projectchilleripreparedfor

thequotation or factory
acceptance test databy manufacturer
Rated capacity of generator, where applicable.

RCgenSpecificationofgenerator

for

captive electricity
History of the document
Version03.0

DateTBD

Contents revisedTBDI-6

JCM_ID_AM002_ver02.003.0
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10 November 2015

01.0

17 September 2014

Electronic decision by the Joint Committee
Revision to the description of “Measurement methods andprocedures” for the power consumption of project chillers in
the Monitoring Spreadsheet.
Electronic decision by the Joint Committee
Initial approval.

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