JCM_ID_AM022_ver01.0
Sectoral scope: 03
Joint Crediting Mechanism Approved Methodology ID_AM022“Introduction of Absorption Chiller”
A. Title of the methodology
Introduction of Absorption Chiller, Version 01.0

B. Terms and definitions
Terms
Absorption chiller

Definitions
Refrigerating machine using heat source such as heating energy
generated by fuel combustion and/or waste heat in the form of hot
water, steam or exhaust gas, refrigerant (e.g. water) andabsorption solution (e.g. Lithium bromide, ammonia) to generate
chilled water or other chilled liquids by absorption refrigeration
cycle.

Cooling capacity

Capability of individual chiller to remove heat. In thismethodology, “cooling capacity” is used to represent a cooling
capacity per a single chiller unit and not for a system with multiple
chiller units.

Periodical check

Periodical investigation of chiller done by manufacturer or agent
who is authorized by the manufacturer, in order to maintain chiller
performance.

C. Summary of the methodology
Items

Summary

GHG emission reduction Absorption chiller is introduced to replace reference centrifugal
measureschiller(s), which leads to save energy and GHG emission
reductions.

Calculation of reference Reference emissions are GHG emissions from using reference
emissionschiller(s) which is determined as centrifugal chiller in thismethodology. Reference emissions are calculated with coolingenergy of project chiller(s), COP (Coefficient Of Performance) of1

JCM_ID_AM022_ver01.0
Sectoral scope: 03
reference chiller, and CO2 emission factor for consumed
electricity.
GHG emissions from using chilled water pump, cooling water
pump and cooling tower are excluded from calculation since those
pumps exist in both reference and project chiller system, and they
can cancel each other out.
Calculationofproject Project emissions are GHG emissions from using projectemissionschiller(s), which are the sum of emissions from electricity
consumption and fossil fuel consumption. GHG emissions fromelectricity consumption are calculated with power consumptionof pumps for absorbing solution and refrigerant built in the projectchiller(s) and hot water pumps where applicable and CO2
emission factor for consumed electricity. GHG emissions fromfossil fuel consumption are calculated with fuel consumption ofproject chiller(s) and CO2 emission factor for fuel consumed.
GHG emissions from using chilled water pump, cooling water
pump and cooling tower are excluded from calculation since those
pumps exist in both reference and project chiller system, and they
can cancel each other out.

Monitoring parametersCooling energy generated by project absorption chiller

Power consumption by project absorption chiller

Gas fuel consumption by project absorption chiller

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

Project chiller is an absorption chiller with a cooling capacity which is less thanor equals to 1,300 USRt.
* 1 USRt = 3.52 kW

Criterion 2

Periodical check is planned more than four (4) times annually.

Criterion 3

In the case of replacing the existing chiller with the project chiller, a plan forprevention of releasing refrigerant used in the existing chiller to the air (e.g. reuse of the equipment) is prepared. Execution of this plan is checked at the timeof verification, in order to confirm that refrigerant used for the existing one
replaced by the project is prevented from being released to the air.
In the case that the existing chiller is NOT replaced with the project chiller, thiscriterion is not applied.

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JCM_ID_AM022_ver01.0
Sectoral scope: 03Criterion 4

In the case that project absorption chiller uses fossil fuel for its heat source,
such fossil fuel is gas fuel.

E. Emission Sources and GHG types
Reference emissions
Emission sources
Power consumption by reference chiller

GHG types
CO2

Project emissions
Emission sources

GHG types

Power consumption by project absorption chiller

CO2

Gas fuel consumption by project absorption chiller

CO2F. Establishment and calculation of reference emissionsF.1. Establishment of reference emissions
Reference emissions are calculated with cooling energy of project chiller(s), COP of reference
chiller, and CO2 emission factor for consumed electricity.
GHG emissions from using chilled water pump, cooling water pump and cooling tower are
excluded from calculation since those pumps exist in both reference and project chiller system,and they can cancel each other out.
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 value varies by the cooling capacity of chillers.
3. The maximum values of COP in each cooling capacity range set for this methodology aredefined as COPRE,i as described in Section I.
F.2. Calculation of reference emissions

Whereܴ‫ܧ‬௣ࡾࡱ࢖ = ෍ ቆ࢏࡯ࡼࡶ,࢏,࢖
× ࡱࡲࢋ࢒ࢋࢉ ቇ࡯ࡻࡼࡾࡱ,࢏

Reference emissions during the period p [tCO2/p]3

JCM_ID_AM022_ver01.0
Sectoral scope: 03‫ܥ‬௉௃,௜,௣‫ܱܲܥ‬ோா,௜‫ܨܧ‬௘௟௘௖
iCooling energy generated by project absorption chiller i during the period p[MWh/p]
COP of reference chiller i [-]CO2 emission factor for consumed electricity [tCO2/MWh]
Identification number of the project absorption chiller

G. Calculation of project emissions

ࡼࡱ࢖ = ෍൫ࡱ࡯ࡼࡶ,࢏,࢖ × ࡱࡲࢋ࢒ࢋࢉ ൯ + ෍൫ࡲ࡯ࡼࡶ,࢏,࢖ × ࡺ࡯ࢂࢌ࢛ࢋ࢒,࢏ × ૚, ૙૙૙ି૚ × ࡱࡲࢌ࢛ࢋ࢒,࢏ ൯Whereܲ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܨܧ‬௘௟௘௖

‫ܥܨ‬௉௃,௜,௣ܰ‫ܸܥ‬௙௨௘௟,௜‫ܨܧ‬௙௨௘௟,௜i࢏࢏Project emissions during the period p [tCO2/p]
Electricity consumption by project absorption chiller i during the period p[MWh/p]CO2 emission factor for consumed electricity [tCO2/MWh]
Gas fuel consumption by project absorption chiller i during the period p [Nm3/p]
Net calorific value of gas fuel consumed by project absorption chiller i[MJ/Nm3]
CO2 emission factor for gas fuel consumed by project absorption chiller i[tCO2/GJ]
Identification number of the project absorption chiller

H. Calculation of emissions reductions

Where‫ܴܧ‬௣
ܴ‫ܧ‬௣

ܲ‫ܧ‬௣

ࡱࡾ࢖ = ࡾࡱ࢖ − ࡼࡱ࢖Emission reductions during the period p [tCO2/p]
Reference emissions during the period p [tCO2/p]
Project emissions during the period p [tCO2/p]4

JCM_ID_AM022_ver01.0
Sectoral scope: 03I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter‫ܨܧ‬௘௟௘௖

Description of dataSource

CO2 emission factor for consumed electricity [Grid electricity][tCO2/MWh].

The data is sourced from
“Emission Factors ofWhen the facility consumes only grid electricity Electricity Interconnection
or captive electricity, the project participant Systems”, National Committee
applies the CO2 emission factor respectively.

on Clean Development

When the facility consumes both grid electricity Mechanism (Indonesian DNAand captive electricity, the project participantfor CDM), based on dataapplies the CO2 emission factor with lower obtained by Directoratevalue.

General of Electricity, Ministryof Energy and Mineral
Resources, Indonesia, unless[CO2 emission factor]

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

COP of reference chiller i

Specifications of projectchiller i prepared for theThe COP of the reference chiller i is selected quotation or factoryfrom the default COP value in the following acceptance test data by
table in line with cooling capacity of the project manufacturer.
chiller i. (“x” in the table represents cooling
capacity per unit.)

The default COP values arederived from the result of[Default COP values of reference chillers]
Coolingcapacity
per unit(USRt)x≤350

350<x≤
550

550<x
≤750

750<x
≤1,300

COPRE,i

5.46

5.69

5.90

6.03

survey on COP of chillers frommanufacturers that have highmarket share. The survey
should prove the use of clear
methodology. The default COP
values should be revised if
necessary from survey result5

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Sectoral scope: 03
which is conducted by JC orproject participants.
ܰ‫ܸܥ‬௙௨௘௟,௜

Net calorific value of gas fuel consumed by In the order of preference:
project absorption chiller i [MJ/Nm3]a) value provided by fuelsupplier;b) value measured by the
project participants;c) regional or national default
value; ord) IPCC default value

provided in table 1.2 of
Ch.1 Vol.2 of 2006 IPCC
Guidelines on National
GHG Inventories. Upper
value is applied.
‫ܨܧ‬௙௨௘௟,௜

CO2 emission factor for gas fuel consumed by In order of preference:
project absorption chiller i [tCO2/GJ]a) value provided by fuelsupplier;b) value measured by the
project participants;c) regional or national default
value; ord) IPCC default value

provided in table 1.4 of
Ch.1 Vol.2 of 2006 IPCC
Guidelines on National
GHG Inventories. Higher
value is applied.
History of the document
Version01.0

Date

Contents revised

31 October 2019 JC9, Annex 3
Initial approval.

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