JCM_TH_F_PM_ver01.0

JCM Proposed Methodology Form
Cover sheet of the Proposed Methodology Form
Form for submitting the proposed methodology
Host Country

Kingdom of Thailand

Name of the methodology proponents Tepia Corporation Japan. CO., Ltd.
submitting this form
Sectoral scope(s) to which the Proposed 3. Energy demand
Methodology applies
Title of the proposed methodology, and Energy Saving by Introduction of Highversion number

Efficiency Screw Chiller for freezing andrefrigeration, Ver.01.0

List of documents to be attached to this form

The attached draft JCM-PDD:(please check):

Additional information

Date of completion

26/12/2019

History of the proposed methodology
VersionDateVer.01.0

26/12/2019

Contents revisedFirst edition1

JCM_TH_F_PM_ver01.0

A. Title of the methodology
Energy Saving by Introduction of High Efficiency Screw Chiller for freezing and refrigeration,
Ver.01.0

B. Terms and definitions
Terms
Screw chiller

Definitions
Screw chiller is a cooling and refrigeration machineutilizing a vapor compression refrigeration cycle equippedwith screw type compressor, a condenser, an expansion
valve and an evaporator in one unit.
Assembly of compressor, condenser, expansion valve andevaporator with interconnections, is defined as onemodule. As for products of screw chiller, there are the typeof single module and multiple modules in one unit.
This methodology is applicable to a unit of multiple
modules as well as the one of single module.

Cooling capacity

Cooling capacity is the capability of individual chiller toremove heat. In this methodology, “cooling capacity” isused to represent a cooling capacity per one individual
chiller unit and not to represent package units which
consist of multiple screw chillers.

Periodical check

Periodical check is a periodical investigation of screw
chiller(s) done by manufacturer or agent who is authorized
by the manufacturer, in order to maintain screw chiller(s)performance.

C. Summary of the methodology
Items
GHG

emissionmeasuresCalculation

Summary
reduction This methodology applies to the project that aims for savingenergy by introducing high efficiency chiller(s).

ofreference Reference emissions are GHG emissions from the usage of2

JCM_TH_F_PM_ver01.0

emissionsreference chiller unit, calculated by using data of power
consumption of project screw chiller(s), ratio of COPs ofreference/project screw chiller and CO2 emission factor forconsumed electricity.

Calculationofproject Project emissions are GHG emissions from the usage of screwemissions

chiller(s), calculated with power consumption of screw
chiller(s) and CO2 emission factor for consumed electricity.

Monitoring parametersPower consumption of project screw chiller



Amount of fuel consumed and amount of electricity
generated by captive power, where applicable.

D. Eligibility criteria
This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1The project installs brine screw chiller(s) for freezing and refrigeration.
Cooling capacity of a screw chiller per one module is less than or equals to1,000 kW.

Criteria 2

COP for project screw chiller(s) calculated under the standardizing
temperature conditions (COPPJ,tc,i) is more than COP of the reference screwchiller, with the cooling capacity range same as the project screw chiller.
[equation to calculate COPPJ,tc,i]۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ = ۱‫۾۾۽‬۸,ܑ × [(‫܂‬۱‫ܜܝܗି܏ܖܑܔܗܗ܋‬,ܑ − ‫܂‬۱‫ܜܝܗି܌܍ܔܔܑܐ܋‬,ܑ + ‫܂‬۲‫܌܍ܔܔܑܐ܋‬COP୔୎,୲ୡ,୧+ ‫܂‬۲‫( ÷ ) ܏ܖܑܔܗܗ܋‬૜ૠ − ૠ + ‫܂‬۲‫ ܌܍ܔܔܑܐ܋‬+ ‫܂‬۲‫]) ܏ܖܑܔܗܗ܋‬: COP of project screw chiller i calculated under thestandardizing temperature conditions* [-]COP୔୎,୧

TCୡ୭୭୪୧୬୥ି୭୳୲,୧

: COP of project screw chiller i under the catalog
conditions of the project screw chiller [-]: Output cooling water temperature of project screw
chiller i set under the catalog conditions of theproject screw chiller [degree Celsius]

TCୡ୦୧୪୪ୣୢି୭୳୲,୧: Output chilled water temperature of project screw
chiller i set under the catalog conditions of theproject screw chiller [degree Celsius]

TDୡ୭୭୪୧୬୥

: Temperature

difference

betweencondensing

temperature of refrigerant and output cooling watertemperature, 1.5 degree Celsius set as a default

3

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value[degree Celsius]
TDୡ୦୧୪୪ୣୢ

: Temperature

difference

betweenevaporating

temperature of refrigerant and output chilled watertemperature, 1.5 degree Celsius set as a default
value[degree Celsius]

The standardizing temperature conditions at which COP for project screw
chiller(s) calculated in this methodology are shown below:
Chilled water:

Cooling water

Criterion 3:

output7 degrees Celsius

input

12 degrees Celsius

output37 degrees Celsius

input

32 degrees Celsius

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

Criterion 4

A plan for prevention of releasing refrigerant used for project screw chiller isprepared. In the case of replacing the existing chiller with the project screw
chiller(s), a plan for prevention of releasing refrigerant used in the existing
chiller to the air (e.g. re-use of the equipment) is prepared. Execution of thisplan is checked 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.

Criterion 5

Periodical check at least once a year is planned.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Power consumption by reference screw chiller(s)CO2Project emissions
Emission sources

GHG types

Power consumption by project screw chiller(s)CO24

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F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying power consumption of project screwchiller(s), ratio of COPs for reference/project screw chiller, and CO2 emission factor for
consumed electricity.
Two types of cooling systems are identified as possible systems for freezing and refrigerationin Thailand to supply cold water for production process: ice storage system withreciprocation type compressor, and brine/water chiller with screw type compressor.
Considering the efficiency and current implementation situation, this methodology sets thecooling system with screw type compressor as the reference chiller available to brine/waterchilling.
This methodology ensures net emission reductions through the following manners:Reference COP is set to be the highest COP value (for each of two cooling capacityranges) among the marketed reference chilling system in Thailand.

F.2. Calculation of reference emissions
ࡾࡱ࢖ = ෍൛ࡱ࡯ࡼࡶ,࢏,࢖ × ൫࡯ࡻࡼࡼࡶ,࢚ࢉ,࢏ ÷ ࡯ࡻࡼࡾࡱ,࢏ ൯ × ࡱࡲࢋ࢒ࢋࢉ ൟ࢏ܴ‫ܧ‬௣ : Reference emissions during the period p [tCO2/p]‫ܥܧ‬௉௃,௜,௣ : Power consumption of project screw chiller i during the period
p [MWh/p]‫ܱܲܥ‬௉௃,௧௖,௜ : COP of project screw chiller i calculated under thestandardizing temperature conditions [-]‫ܱܲܥ‬ோா,௜ : COP of reference screw chiller i under the standardizingtemperature conditions [-]‫ܨܧ‬௘௟௘௖ : CO2 emission factor for consumed electricity [tCO2/MWh]

G. Calculation of project emissions

ࡼࡱ࢖ = ෍൫ࡱ࡯ࡼࡶ,࢏,࢖ × ࡱࡲࢋ࢒ࢋࢉ ൯࢏ܲ‫ܧ‬௣ : Project emissions during the period p [tCO2/p]‫ܥܧ‬௉௃,௣ : Power consumption of project screw chiller i during the period5

JCM_TH_F_PM_ver01.0p [MWh/p]‫ܨܧ‬௘௟௘௖ : CO2 emission factor for consumed electricity [tCO2/MWh]
H. Calculation of emissions reductions
ࡱࡾ࢖ = ࡾࡱ࢖ − ࡼࡱ࢖‫ܴܧ‬௣ : Emission reductions during the period p [tCO2/p]ܴ‫ܧ‬௣ : Reference emissions during the period p [tCO2/p]ܲ‫ܧ‬௣ : 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.
Parameter‫ܨܧ‬௘௟௘௖

Description of data
CO2 emission factor for consumed electricity.

Source[Grid electricity]

When project chiller consumes only 1) grid The most recent value
electricity, 2) captive electricity or 3) electricity available at the time of
supplied from other sources such as captive power validation is applied andproducer(s) (e.g. independent power producer fixed for the monitoring(IPP), small power producer (SPP) and very small period thereafter. The data
power producer (VSPP)), the project participant isapplies the CO2 emission factor respectively.

sourcedfrom“GridEmission Factor (GEF) ofThailand”,endorsedby

When project screw chiller may consume more Thailand Greenhouse Gas
than 2 electric sources, the project participant Management Organization
applies the CO2 emission factor with the lowest (TGO) unless otherwise
value.

instructed by the Joint
Committee.

[CO2 emission factor][Captive electricity]

For 1) grid electricity

For the option a)

The most recent value available from the source Specification of the captive
stated in this table at the time of validation

power generation systemFor 2) captive electricity including cogeneration

providedsystem, it is determined based on the following

manufacturer ( ߟ௘௟௘௖ [%]).

options:by

theCO2 emission factor of the6

JCM_TH_F_PM_ver01.0a) Calculated from its power generation

fossil fuel type used in theefficiency (ߟ௘௟௘௖ ) obtained from

captive power generation
system (‫ܨܧ‬௙௨௘௟ [tCO2/GJ])

manufacturer’s specification.

The power generation efficiency based on lower

For the option b)
Generated and supplied
generation system from the manufacturer’selectricity by the captive
specification is applied;
power generation system(‫ܩܧ‬௉௃,௣ [MWh/p]).
100‫ܨܧ‬௚௘௡ = 3.6 ×× ‫ܨܧ‬௙௨௘௟
Fuelamount consumed byߟ௘௟௘௖
thecaptivepower
generation system (‫ܥܨ‬௉௃,௣b) Calculated from measured data
[mass or volume/p]).
The power generation efficiency calculated from Net
calorificvalue
heating value (LHV) of the captive powermonitored data of the amount of fuel input for ( ܰ‫ܸܥ‬௙௨௘௟[GJ/mass orpower generation ( ‫ܥܨ‬௉௃,௣ ) and the amount of volume])

electricitygenerated( ‫ܩܧ‬௉௃,௣ )duringandCO2

the emission factor of the fuelmonitoring period p is applied. The measurement ( ‫ܨܧ‬௙௨௘௟[tCO2/GJ])

inis conducted with the monitoring equipment to order of preference:
which calibration certificate is issued by an entity in order of preference:
accredited under national/international standards;‫ܨܧ‬௘௟௘௖ = ‫ܥܨ‬௉௃,௣ × ܰ‫ܸܥ‬௙௨௘௟ × ‫ܨܧ‬௙௨௘௟ ×

Where:

1‫ܩܧ‬௉௃,௣ܰ‫ܸܥ‬௙௨௘௟ : Net calorific value of consumed
fuel [GJ/mass or volume]1) values provided by thefuel supplier;2) measurement by theproject participants;
3) regional or national
default values;

Note:4) IPCC default values

In case the captive electricity generation systemprovided in tables 1.2 andmeets all of the following conditions, the value in

1.4 of Ch.1 Vol.2 of 2006

the following table may be applied to ‫ܨܧ‬௘௟௘௖IPCC

depending on the consumed fuel type.

Guidelines

National GHG Inventories.
Lower value is applied.

The system is non-renewable generation
systemElectricity generation capacity of the system
is less than or equal to 15 MW
fuel type

Diesel fuelNatural gas‫ܨܧ‬௘௟௘௖

0.8 *10.46 *2
7on[Captive electricity withdiesel fuel]JCM_TH_F_PM_ver01.0

CDM approved small scale*1 The most recent value at the time of validation

methodology: AMS-I.A.

is applied.
*2 The value is calculated with the equation in the [Captive electricity withoption a) above. The lower value of default natural gas]
effective CO2 emission factor for natural gas 2006 IPCC Guidelines on(0.0543tCO2/GJ), and the most efficient value of National GHG Inventories
default efficiency for off-grid gas turbine systems for the source of EF of(42%) are applied.

natural gas.
CDM Methodological toolFor 3) electricity supplied from other sources such

"Determining the baseline

as captive power producer(s), it is determined

efficiency of thermal orbased on the following options:electric energy generationa) The value provided by the electricity suppliersystems version 02.0" forwith the evidence;the default efficiency forb) The value calculated in the same manner for theoff-grid power plants.

option a) of 2) captive electricity as instructedabove;c) The value calculated in the same manner
instructed for the option b) of 2) captive electricity
as instructed above;[Electricity supplied fromother sources such as
captive power producer(s)]When project chiller may consume electricity
supplied from more than 2 power producers, the For option a) the evidence
project participant applies the CO2 emission may include a quotation ofemission factor from thefactors proportionately.

electricity supplier(s)‫ܱܲܥ‬ோா,௜

COP of the reference screw chiller i under the The default COP value isstandardizing temperature conditions

derived from the result ofThe COP of the reference screw chiller i is selected survey on COP of chillers.
from the default COP values in the following The survey should provetables in line with cooling capacity of the project theuseofclear

screw chiller i. (“x” in the table represents cooling methodology. The ‫ܱܲܥ‬ோா,௜
capacity per unit.)

shouldbenecessary
Cooling
capacity perunit (kW)x≤520

520<x≤1,000

fromifsurvey

result which is conductedbyJC

participants.
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COPRE,i‫ܱܲܥ‬௉௃,௜

4.97

5.02

COP of the project screw chiller i under the catalog Specifications of project
conditions of the project screw chiller

screw chiller i prepared forthe quotation or factory
acceptance test data by
manufacturer

9