JCM_ID_AM002_ver02.0
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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 2.0

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 huge cooling 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.

Calculationofemissions

reference Reference emissions are GHG emissions from using reference
chiller, calculated with power consumption of project chiller,
ratio of COPs (Coefficient Of Performance) of reference/projectchillers and CO2 emission factor for electricity consumed.

Calculation
emissionsofproject Project emissions are GHG emissions from using project chiller,
calculated with power consumption of project chiller and CO2emission factor for electricity consumed.

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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) adjustingtemperature conditions from the project specific condition to the standardizingconditions. 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]۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ = ۱‫۾۾۽‬۸,ܑ × [(‫ܜܝܗି܏ܖܑܔܗܗ܋܂‬,ܑ − ‫ܜܝܗି܌܍ܔܔܑܐ܋܂‬,ܑ + ‫܂‬۲‫ ܌܍ܔܔܑܐ܋‬+ ‫܂‬۲‫) ܏ܖܑܔܗܗ܋‬COP୔୎,୲ୡ,୧
COP୔୎,୧

Tୡ୭୭୪୧୬୥ି୭୳୲,୧
Tୡ୦୧୪୪ୣୢି୭୳୲,୧

TDୡ୭୭୪୧୬୥÷ (૜ૠ − ૠ + ‫܂‬۲‫ ܌܍ܔܔܑܐ܋‬+ ‫܂‬۲‫]) ܏ܖܑܔܗܗ܋‬: COP of project chiller i calculated under the standardizing
temperature conditions* [-]: COP of project chiller i under the project specificconditions [-]: Output cooling water temperature of project chiller i set
under the project specific condition [degree Celsius]: Output chilled water temperature of project chiller i set
under the project specific condition [degree Celsius]: Temperature difference between condensing temperatureof refrigerant and output cooling water temperature
1.5 degree Celsius set as a default value [degree Celsius]

TDୡ୦୧୪୪ୣୢ

: Temperature difference between evaporating temperatureof refrigerant and output chilled water temperature,
1.5 degree Celsius set as a default value [degree Celsius]*The standardizing temperature conditions to calculate COPPJ,tc,i
Chilled water:
output7 degree Celsius
input
12 degree Celsius

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Cooling water:

Criterion 3

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 5

Plan 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 is conservatively set as a default value in the following manner toensure 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 emissionsRE୮‫܀‬۳‫ = ܘ‬෍൛۳۱‫۾‬۸,ܑ,‫ × ܘ‬൫۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ ÷ ۱‫܀۾۽‬۳,ܑ ൯ × ۳۴‫ ܋܍ܔ܍‬ൟܑ: Reference emissions during the period p [tCO2/p]EC୔୎,୧,୮ : Power consumption of project chiller i during the period p [MWh/p]

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COP୔୎,୲ୡ,୧ : COP of project chiller i calculated under the standardizing temperature conditions[-]

COPୖ୉,୧ : COP of reference chiller i under the standardizing temperature conditions [-]EFୣ୪ୣୡ : CO2 emission factor for consumed electricity [tCO2/MWh]
G. Calculation of project emissionsPE୮‫۾‬۳‫ = ܘ‬෍൫۳۱‫۾‬۸,ܑ,‫ × ܘ‬۳۴‫ ܋܍ܔ܍‬൯ܑ: Project emissions during the period p [tCO2/p]EC୔୎,୧,୮ : Power consumption of project chiller i during the period p [MWh/p]EFୣ୪ୣୡ : CO2 emission factor for consumed electricity [tCO2/MWh]
H. Calculation of emissions reductions

ER ୮RE୮PE୮۳‫܀ = ܘ ܀‬۳‫ ܘ‬− ‫۾‬۳‫ܘ‬: Emission reductions during the period p [tCO2/p]: Reference emissions during the period p [tCO2/p]: 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.
ParameterEFୣ୪ୣୡ

Description of data
CO2 emission factor for consumed electricity.

Source[Grid electricity]

When project chiller consumes only grid electricity The most recent value
or captive electricity, the project participant applies available at the time of
the CO2 emission factor respectively.

validation is applied

When project chiller may consume both grid andfixed

electricity and captive electricity, the project monitoringfortheperiod

participant applies the CO2 emission factors for grid thereafter. The data is
and captive electricity proportionately.

sourcedfrom“Emission Factors of
Proportion of captive electricity is derived from Electricity

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Parameter

Description of data

Sourcedividing captive electricity generated by total Interconnection
electricity consumed at the project site. The total Systems”,

National

electricity consumed is a summation of grid Committee on Clean
electricity imported (EIgrid,p) and captive electricity Developmentgenerated (EGgen,p)* during the monitoring period.

Mechanism Indonesian
DNA for CDM unless* Captive electricity generated can be derived from otherwise
metering

electricity

generatedor

monitored byinstructedtheJoint

operating time (hgen,p) and rated capacity of generator Committee.
(RCgen).

[Captive electricity]
CDM approved small[CO2 emission factor]

scalemethodology:

For grid electricity: The most recent value available AMS-I.A
from the source stated in this table at the time ofvalidation
For captive electricity: 0.8* [tCO2/MWh]*The most recent value available from CDM
approved small scale methodology AMS-I.A at thetime of validation is applied.
COPୖ୉,୧

The COP of the reference chiller i is selected from Specifications

ofthe default COP value in the following table in line projectchilleriwith cooling capacity of the project chiller i.

fortheprepared

quotation or factory
acceptance test data byCOPRE,i
Cooling
capacity/unit(USRt)

x<300

300≦
x<450

450≦
x<500

500≦
x<700

700≦
x<1,250

COPRE,i

4.92

5.33

5.59

5.85

5.94

manufacturer.
The default COP value
is derived from theresult of survey on
COP of chillers frommanufacturers that has
high market share. The
survey should provetheI-5useofclear

methodology.

TheCOPRE,ibeshould

JCM_ID_AM002_ver02.0
Sectoral scope: 03Parameter

Description of data

Sourcerevised if necessary
fromsurvey

resultwhich is conducted by
JCorproject

participants

every

three years.
COP୔୎,୧

The COP of project chiller i under the project Specifications

ofspecific condition.

project

chilleri

preparedforthequotation or factory
acceptance test data bymanufacturerTୡ୭୭୪୧୬୥ି୭୳୲,୧Output cooling water temperature of project chiller i Specificationsof

set under the project specific condition.

project

chilleri

preparedfor

thequotation or factory
acceptance test data bymanufacturerTୡ୦୧୪୪ୣୢି୭୳୲,୧Output chilled water temperature of project chiller i Specifications

ofset under the project specific condition.

projectchilleri

preparedfor

thequotation or factory
acceptance test data bymanufacturerRC୥ୣ୬

Rated capacity of generator, where applicable.

Specificationofgenerator for captive
electricity

History of the document
Version
02.0

Date
10 November 2015

01.0

17 September 2014

Contents revisedElectronic 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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