JCM_TH_AM005_ver01.0
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Joint Crediting Mechanism Approved Methodology TH_AM005“Energy Saving by Introduction of High Efficiency Non-Inverter Type CentrifugalChiller”
A. Title of the methodology
Energy Saving by Introduction of High Efficiency Non-Inverter Type Centrifugal Chiller,
Version 01.0

B. Terms and definitions
Terms
Non-inverter

Definitions
type A non-inverter type centrifugal chiller is a chiller including acentrifugal chiller

centrifugal compressor without inverter. It is commonly used forair-conditioning with huge cooling load, e.g., buildings,
shopping malls or factories etc.

Cooling capacity

Cooling capacity is the capability 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, commercial facilities etc. in Thailand.

Calculation
emissions

ofreference 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.

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Calculationofproject Project emissions are GHG emissions from using project chiller,

emissionscalculated with power consumption of project chiller and CO2emission factor for electricity consumed.

Monitoring parameterPower consumption of project chiller

The amount of fuel consumed and/or the amount ofelectricity generated by captive power, where applicable.

D. Eligibility criteria

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

Project chiller is a non-inverter type centrifugal chiller with a capacity whichis less than or equals to 1,500 USRt.
Note : 1 USRt = 3.52 kW

Criterion 2

COP for project chiller i calculated under the standardizing temperature
conditions*1 (COPPJ,tc,i) is more than the threshold COP values set in the tablebelow. (“x” in the table represents cooling capacity per unit.)

Cooling capacityper unit [USRt]

300≤x<500500≤x<800800≤x≤1500Threshold COPvalue

5.67

5.81

6.05

COPPJ,tc,i is calculated by altering the temperature conditions of COP ofproject chiller i (COPPJ,i) from the project specific conditions to thestandardizing conditions. COPPJ,i is derived from specifications prepared forthe quotation or factory acceptance test data by manufacturer.
[equation to calculate COPPJ,tc,i]۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ = ۱‫۾۾۽‬۸,ܑ × [(‫ܜܝܗି܏ܖܑܔܗܗ܋܂‬,ܑ − ‫ܜܝܗି܌܍ܔܔܑܐ܋܂‬,ܑ + ‫܂‬۲‫܌܍ܔܔܑܐ܋‬COP୔୎,୲ୡ,୧
COP୔୎,୧

Tୡ୭୭୪୧୬୥ି୭୳୲,୧
Tୡ୦୧୪୪ୣୢି୭୳୲,୧+ ‫܂‬۲‫( ÷ ) ܏ܖܑܔܗܗ܋‬૜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 conditions [degree Celsius]: Output chilled water temperature of project chiller i set2

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under the project specific conditions [degree Celsius]
TDୡ୭୭୪୧୬୥

: 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]

Criterion 3*1 : The standardizing temperature conditions to calculate COPPJ,tc,i
Chilled water:
output7 degrees Celsius
input
12 degrees Celsius
Cooling water:output 37 degrees Celsius
input
32 degrees Celsius
Periodical check is planned at least one (1) time annually.

Criterion 4

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

Criterion 5

A plan for prevention of releasing refrigerant used for project chiller isprepared. In the case of replacing the existing chiller with the project chiller, aplan for prevention of releasing refrigerant used in the existing chiller to theair (e.g. re-use of the equipment) is prepared. Execution of this plan ischecked at the time of verification, in order to confirm that refrigerant used
for the existing one replaced by the project is prevented from being 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, ratio3

JCM_TH_AM005_ver01.0
Sectoral scope: 03of 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 reference COP value varies by its cooling capacity.
2. 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 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]

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]4

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I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter

Description of dataSourceEFୣ୪ୣୡCO2 emission factor for consumed electricity.

[Grid electricity]
The most recent value
available at the time ofvalidation is applied andfixed for the monitoring
period thereafter. The data
is sourced from “GridEmission Factor (GEF) ofThailand”, endorsed by
Thailand Greenhouse Gas
Management Organization
unless otherwise instructedby the Joint Committee.

When project chiller consumes only gridelectricity or captive electricity, the project
participant applies the CO2 emission factor
respectively.
When project chiller may consume both gridelectricity and captive electricity, the project
participant applies the CO2 emission factor withlower value.
[CO2 emission factor]
For grid electricity: The most recent value
available from the source stated in this table atthe time of validation[Captive electricity]

For captive electricity, it is determined based on

For the option a)

the following options:

Specification of the captive
power generation system
bythea) Calculated from its power generation provided
manufacturer (ηelec [%]).
efficiency(ηelec[%])obtainedfromCO2 emission factor of themanufacturer’s specification
fossil fuel type used in theThe power generation efficiency based on lower captive power generation
system (EFfuel [tCO2/GJ])
heating value (LHV) of the captive power
generation system from the manufacturer’s For the option b)
specification is applied;
Generated and supplied
electricity by the captive
100
EFୣ୪ୣୡ = 3.6 ×× EF୤୳ୣ୪power generation systemηୣ୪ୣୡ(EGPJ,p [MWh/p]).
Fuel amount consumed bythecaptivepowerb) Calculated from measured data
generation system (FCPJ,pThe power generation efficiency calculated[mass or weight/p]).
from monitored data of the amount of fuel input Net calorific value (NCVfuelfor power generation (FC୔୎,୮) and the amount of [GJ/mass or weight]) andelectricity generated ( EG୔୎,୮ ) during the CO2 emission factor of the5

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Parameter

Description of dataSource

The fuel (EFfuel [tCO2/GJ]) inorder of preference:measurement is conducted with the monitoring
1) values provided by theequipment to which calibration certificate is fuel supplier;issued by an entity accredited under 2) measurement by theproject participants;
national/international standards;
3) regional or national1
default values;EFୣ୪ୣୡ = FC୔୎,୮ × NCV୤୳ୣ୪ × EF୤୳ୣ୪ ×EG୔୎,୮4) IPCC default values
provided in tables 1.2 andWhere:
1.4 of Ch.1 Vol.2 of 2006
NCV୤୳ୣ୪ : Net calorific value of consumed fuel
IPCC
Guidelineson[GJ/mass or weight]
National GHG Inventories.
Lower value is applied.
monitoring

periodpisapplied.

Note:
In case the captive electricity generation systemmeets all of the following conditions, the value
in the following table may be applied to EFୣ୪ୣୡdepending on the consumed fuel type.

[Captive electricity withdiesel fuel]CDM approved small scale
methodology: AMS-I.A.

The system is non-renewable generation
system[Captive electricity with

Electricity generation capacity of thenatural gas]

system is less than or equal to 15 MW

2006 IPCC Guidelines on
National GHG Inventories

fuel typeEFୣ୪ୣୡ

Dieselfuel

Natural gas

0.8 *10.46 *2for the source of EF ofnatural gas.
CDM Methodological tool
"Determining the baseline*1 The most recent value at the time ofefficiency of thermal orvalidation is applied.

electric energy generation*2 The value is calculated with the equation in systems version02.0" forthe option a) above. The lower value of default the default efficiency for

effective CO2 emission factor for natural gas off-grid power plants.
(0.0543tCO2/GJ), and the most efficient valueof default efficiency for off-grid gas turbine
systems (42%) are applied.

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Parameter
COPୖ୉,୧

COP୔୎,୧

Tୡ୭୭୪୧୬୥ି୭୳୲,୧

Tୡ୦୧୪୪ୣୢି୭୳୲,୧Description of data

SourceThe COP of the reference chiller i is selected The default COP values arederived from the result offrom the default COP value in the following
survey on COP of chillers
table in line with cooling capacity of the project from manufacturers thatchiller i. (“x” in the table represents cooling have high market share.
The survey should prove
capacity per unit.)
theuseofclear
methodology. The COPRE,i
Cooling
300≤x<5 500≤x<8 800≤x≤15
capacityshould be revised if/unit
000000necessary from survey(USRt)
result which is conducted
COPRE,i
5.67
5.81
6.05
byJCorproject
participants.
The COP of project chiller i under the project Specifications of projectchiller i prepared for thespecific conditions.
quotation
orfactory
acceptance test data bymanufacturer
Output cooling water temperature of project Specifications of projectchiller i prepared for thechiller i set under the project specificquotation
orfactory
conditions.
acceptance test data by
manufacturer
Specificationsof projectOutput chilled water temperature of projectchiller i prepared for thechiller i set under the project specificquotation
orfactory
conditions.
acceptance test data by
manufacturer

History of the document
Version01.0

Date
21 August 2017

Contents revised
JC3, Annex 7
Initial approval.

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