JCM_TH_AM005_ver02.0
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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 02.0

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]
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 conditions [degree Celsius]

Tchilled−out,i: Output chilled water temperature of project chiller i set2

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under the project specific conditions [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]

Criterion 3*1 : The standardizing temperature conditions to calculate COPPJ,tc,i
Chilled water:output
7 degrees Celsius
input12 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

CO2

Project 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_ver02.0
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 emissions
𝐑𝐄𝐩 = ∑{𝐄𝐂𝐏𝐉,𝐢,𝐩 × (𝐂𝐎𝐏𝐏𝐉,𝐭𝐜,𝐢 ÷ 𝐂𝐎𝐏𝐑𝐄,𝐢 ) × 𝐄𝐅𝐞𝐥𝐞𝐜 }𝐢REp: Reference emissions during the period p [tCO2/p]

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]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 dataSource

EFelecCO2 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 1) gridelectricity, 2) captive electricity or 3) electricity
directly supplied from small power producer(SPP) to the project site through its internal grid(e.g. industrial park), the project participant
applies the CO2 emission factor respectively.
When project chiller may consume electricity
supplied from more than 1 electric source, theproject participant applies the CO2 emission
factor with the lowest value.

[Captive electricity][CO2 emission factor]
For 1) grid electricity: The most recent value
available from the source stated in this table atthe time of validation
For 2) captive electricity including cogeneration
system, it is determined based on the following
options:a) Calculated from its power generation
efficiency(ηelec[%])obtainedFor the option a)Specification of the captive
power generation systemprovidedby
themanufacturer (ηelec [%]).
CO2 emission factor of thefossil fuel type used inthecaptivepower
generation system (EFfuel[tCO2/GJ])

from For the option b)
Generated and supplied
manufacturer’s specificationelectricity by the captive
The power generation efficiency based on lower
power generation system
heating value (LHV) of the captive power (EGPJ,p [MWh/p]).
generation system from the manufacturer’s Fuel amount consumed bythecaptivepower
specification is applied;generation system (FCPJ,p100[mass or volume /p]).
EFelec = 3.6 ×× EFfuelηelec
Net calorific value (NCVfuel[GJ/mass or volume ]) and5

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Parameter

Description of dataSourceb) Calculated from measured data
The power generation efficiency calculated
from monitored data of the amount of fuel input
for power generation (FCPJ,p) and the amount ofelectricity generated ( EGPJ,p ) during themonitoring

periodpisapplied.

The

measurement is conducted with the monitoring
equipment to which calibration certificate isissuedbyanentity

accreditedundernational/international standards;
EFelec = FCPJ,p × NCVfuel × EFfuel ×

1
EGPJ,pCO2 emission factor of thefuel (EFfuel [tCO2/GJ]) inorder of preference:
1) values provided by thefuel supplier;2) measurement by the
project participants;
3) regional or national
default values;4) IPCC default values
provided in tables 1.2 and1.4 of Ch.1 Vol.2 of 2006
IPCC
Guidelineson
National GHG Inventories.
Lower value is applied.

Where:
NCVfuel : Net calorific value of consumed fuel[GJ/mass or volume][Captive electricity withdiesel fuel]Note:

CDM approved small scale

In case the captive electricity generation system

methodology: AMS-I.A.

meets all of the following conditions, the value
in the following table may be applied to EFelec[Captive electricity withdepending on the consumed fuel type.

natural gas]
2006 IPCC Guidelines on

The system is non-renewable generation

National GHG Inventories

systemfor the source of EF ofElectricity generation capacity of thenatural gas.

system is less than or equal to 15 MW

CDM Methodological tool
"Determining the baseline

fuel typeDieselfuelNatural gas

EFelec

0.8 *10.46 *2

efficiency of thermal orelectric energy generation
systems version02.0" forthe default efficiency for*1 The most recent value at the time ofvalidation is applied.
*2 The value is calculated with the equation in
the option a) above. The lower value of default
effective CO2 emission factor for natural gas

6off-grid power plants.

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Parameter

Description of dataSource(0.0543tCO2/GJ), and the most efficient valueof default efficiency for off-grid gas turbinesystems (42%) are applied.
For 3) electricity directly supplied from small
power producer (SPP) , it is determined basedon the following options:a) The value provided by the SPP with theevidence;b) The value calculated in the same manner forthe option a) of 2) captive electricity as[Electricitydirectlysupplied from SPP]

instructed above;c) The value calculated in the same manner forthe option b) of 2) captive electricity as
instructed above;
When project chiller may consume electricity
supplied from more than 1 SPP, the projectFor option a) the evidence
stating information relevantto the value of emission
factor e.g. data of power
generation, type of power
plant, type of fossil fuel,period of time.

participant applies the CO2 emission factor withthe lowest value.
COPRE,iCOPPJ,iTcooling−out,iThe COP of the reference chiller i is selected The default COP values arederived from the result of
from 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.
TheCOP
RE,i
Cooling
300≤x<5 500≤x<8 800≤x≤15
capacityshould be revised if/unit
00
0000
necessary from survey(USRt)
result which is conducted
COPRE,i
5.67
5.81
6.05
by
JC
or
project
participants.
The COP of project chiller i under the project Specifications of projectchiller i prepared for thespecific conditions.
quotationorfactory
acceptance test data bymanufacturer
Output cooling water temperature of project Specifications of projectchiller i prepared for thechiller i set under the project specificquotation
orfactoryconditions.
acceptance test data by7

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Parameter
Tchilled−out,iDescription of data

Sourcemanufacturer
Output chilled water temperature of project Specifications of projectchiller i prepared for thechiller i set under the project specificquotation
orfactory
conditions.
acceptance test data bymanufacturer

History of the document
Version02.0

Date
14 January 2019

Contents revisedElectronic decision by the Joint Committee
Revision to:• Add option to identify CO2 emission factor for consumedelectricity by changing the description of CO2 emission factor
for consumed electricity directly supplied from small power
producer (SPP)• Change the description of "Measurement methods andprocedures", "Source of data", "Description of data" and01.0

21 August 2017

"Units" in the monitoring spreadsheet
JC3, Annex 7
Initial approval.

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