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 KANEMATSU CORPORATION
submitting this form
Sectoral scope(s) to which the Proposed 3. Energy demand
Methodology applies
Title of the proposed methodology, and Installation of Energy-efficient Refrigerators
version number

Using Natural Refrigerant at Cold Storage,
Version 01.0

List of documents to be attached to this form

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

Additional information

Date of completion

10/10/2018

History of the proposed methodology
Version01.0

Date
10/10/2018

Contents revisedFirst edition1

JCM_TH_F_PM_ver01.0

A. Title of the methodology
Installation of Energy-efficient Refrigerators Using Natural Refrigerant at Cold Storage, Version
01.0

B. Terms and definitions
Terms
Secondary loop cooling system

Definitions
A secondary loop cooling system is an indirect coolingsystem that cools the object with a secondary refrigerant(e.g., brine) which is cooled by a primary refrigerant (e.g.,HFC). The secondary loop cooling system primarily consistsof the refrigerator which is mainly composed of thecompressor and heat exchangers as the primary refrigeration
cycle and pumps, heat exchangers and fans as the secondaryrefrigeration cycle.
The secondary loop cooling system is described as “primaryrefrigerant/secondary refrigerant” (e.g., “HFC/brine”).

Coefficient of Performance

COP is defined as a value calculated by dividing refrigeration(COP)

capacity by electricity consumption of a refrigerator under afull load condition. Electricity consumption of a refrigerator
is defined in this methodology as the electricity used tooperate the compressor. Electricity consumption of pumps forcirculating the secondary refrigerant, and other ancillaryequipment are not included in the COP calculation.
The room temperature conditions at which COPs arecalculated in this methodology are shown below:•Room temperature condition: - 25 deg. C, 0 deg. C, 5deg. C•

Natural refrigerant

Cooling water fed to condenser: inlet 32 deg. C

Natural refrigerant refers to naturally occurring substanceswith refrigeration capacity and with zero ozone depletion
potential (ODP) (e.g. CO2 and NH3).

Periodical check

Periodical check is a periodical maintenance operation done2

JCM_TH_F_PM_ver01.0

by the manufacturer or an agent who is authorized by themanufacturer to maintain refrigerator performance (notincluding part replacement or overhaul).

C. Summary of the methodology
Items
GHG

Summary

emission

reduction Energy-efficient refrigerators using natural refrigerant ismeasures
Calculation

introduced for energy saving at the cold storage.
ofreference Reference emissions are GHG emissions from reference

emissionsrefrigerators, calculated by using data of power consumption ofproject refrigerator, ratio of COPs of reference/projectrefrigerators and CO2 emission factor for consumed electricity.

Calculationofproject Project emissions are GHG emissions from project refrigerator,emissions

calculated with power consumption of project refrigerator andCO2 emission factor for consumed electricity.

Monitoring parameters

Power consumption of project refrigerator

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

Refrigerator(s) with a secondary loop cooling system using CO2 as a refrigerant
and equipped with inverter is installed at cold storage.

Criterion 2

COP of project refrigerator(s) installed in the project cooling system is more than
the threshold COP values set in the tables below. (“x” in the table represents
cooling capacity per unit.)
Room temperature

Cooling capacity

Threshold COPcondition

(kW)

value

- 25 deg. C

42.4 ≤ x ≤ 340.0

1.71

0 deg. C

73.6 ≤ x ≤ 516.4

2.79

5 deg. C86.2 ≤ x ≤ 612.6

3.20

COP for the project refrigerator(s) are calculated with the following conditions:•

Room temperature condition: - 25 deg. C or 0 deg. C or 5 deg. C•Cooling water fed to condenser: inlet 32 deg. C3

JCM_TH_F_PM_ver01.0

Criterion 3

Periodical check is planned at least one (1) time annually.

Criterion 4

In the case of replacing the existing refrigerator with the project refrigerator, aplan for prevention of releasing refrigerant used in the existing refrigerator to theair (e.g. re-use of the equipment) is prepared. Execution of this plan 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.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Power consumption by the reference refrigerator

CO2Project emissions
Emission sources

GHG types

Power consumption by the project refrigerator

CO2F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying the power consumption of project
refrigerator, ratio of COPs for reference/project refrigerators and CO2 emission factor forconsumed electricity.
The following types of cooling system are identified as possible cooling systems other than theproject system to be installed at cold storage:•

For room temperature condition of -25 deg. C: HFC dry expansion (single loop), NH3
flooded, pump system (single loop), HFC/brine (secondary loop) and NH3/brine (secondaryloop)•For room temperature condition of 0 deg. C and 5 deg. C: HFC dry expansion (single loop)

This methodology ensures that net emission reductions are achieved by applying the following
conservative assumptions:Determination of default values for COPRE:

The maximum COP values of refrigerators among the data of possible type cooling systems

4

JCM_TH_F_PM_ver01.0

available in Thai market within the range specified by Criterion 2 is defined as the default
values of COPRE (1.71 for temperature condition of - 25 deg. C, 2.79 for temperature conditionof 0 deg. C and 3.20 for 5 deg. C) to ensure the net emission reductions.
Emissions associated with leakage of refrigerant in operation:

Among the possible types of cooling systems, two cooling systems use HFCs (R404A, GWP:
3,000-4,000) as refrigerant. The project cooling system uses a natural refrigerant that has a verysmall GWP (CO2: 1, NH3: less than 1).

However, emissions associated with leakage ofrefrigerant are not counted in the emission reduction calculation.
Project refrigerator equipped with inverter:

The project refrigerator is controlled by inverter technology. In this methodology, COP isdefined under the condition of full load although in reality a cold storage is often operated under
the condition of partial load where the efficiency of the refrigerator without inverter tends todecrease because of its intermittent operation. Calculating emissions based on the COPs of fullload conditions is deemed conservative since the efficiency of the project refrigerator is likely
to be maintained either at the full load or at partial load condition as it is equipped with inverter.
F.2. Calculation of reference emissions

Whereܴ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܱܲܥ‬௉௃,௜‫ܱܲܥ‬ோா,௜‫ܨܧ‬௘௟௘௖iܴ‫ܧ‬௣ = ෍ ቆ‫ܥܧ‬௉௃,௜,௣ ×௜‫ܱܲܥ‬௉௃,௜
× ‫ܨܧ‬௘௟௘௖ ቇ‫ܱܲܥ‬ோா,௜

Reference emissions during the period p [tCO2/p]
Power consumption of project refrigerator i during the period p [MWh/p]
COP of project refrigerator i
COP of reference refrigerator i
CO2 emission factor for consumed electricity [tCO2/MWh]
Identification number of refrigerators

G. Calculation of project emissionsܲ‫ܧ‬௣ = ෍൫‫ܥܧ‬௉௃,௜,௣ × ‫ܨܧ‬௘௟௘௖ ൯௜

5

JCM_TH_F_PM_ver01.0Whereܲ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܨܧ‬௘௟௘௖

iProject emissions during the period p [tCO2/p]
Power consumption of project refrigerator i during the period p [MWh/p]
CO2 emission factor for consumed electricity [tCO2/MWh]
Identification number of refrigerators

H. Calculation of emissions reductions‫ܴܧ‬௣ = ܴ‫ܧ‬௣ − ܲ‫ܧ‬௣Where‫ܴܧ‬௣ܴ‫ܧ‬௣ܲ‫ܧ‬௣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.
Parameter‫ܱܲܥ‬௉௃,௜Description of data
COP of project refrigerator i

SourceSpecifications of project
refrigerator i prepared for theThe room temperature conditions at which

quotation or factory acceptance

COPs are calculated in this methodology are

test data at the time of shipment

shown below:

by manufacturer.

•Room temperature condition: - 25 deg. C,0 deg. C, 5 deg. C•Cooling water fed to condenser: inlet 32
deg. C‫ܱܲܥ‬ோா,௜

COP of reference refrigerator i

The default COP values arederived from the maximum

The default values for COPRE,i is appliedvalue of COP among thedepending on the room temperature condition

available data of the possible

6

JCM_TH_F_PM_ver01.0

set for the project refrigerator i:

types of refrigerators except

Temperature

CoolingDefault

project within the range

condition

capacity

valuesspecified by Criterion 2.

- 25 deg. C

42.4 ≤ x ≤1.71

use of clear methodology.

340.0kW0 deg. C

73.6 ≤ x ≤2.79

86.2 ≤ x ≤Default values of COPRE,ishould be revised if necessary

516.4kW
5 deg. CThe survey should prove the3.20

from survey result which is
conducted by JC or project612.6kW* “x” in the table represents cooling capacity

participants.

per unit.
‫ܨܧ‬௘௟௘௖

CO2 emission factor for consumed electricity[Grid electricity]
The most recent value available

When project refrigerator consumes only grid at the time of validation iselectricity or captive electricity, the project applied and fixed for theparticipant applies the CO2 emission factor monitoring period thereafter.
respectively.

The data is sourced from “GridEmission

Factor(GEF)

of

When project refrigerator may consume both Thailand”,endorsed

bygrid electricity and captive electricity, the Thailand

GreenhouseGas

project participant applies the CO2 emission Management
factor with lower value.

Organization

unless otherwise instructed by
the Joint Committee.

[CO2 emission factor]
For grid electricity: The most recent value [Captive electricity]
available from the source stated in this table at For the option a)
the time of validation

Specification of the captive
power

generation

systemFor captive electricity, it is determined based

provided by the manufacturer

on the following options:(ηelec [%]).
CO2 emission factor of thea) Calculated from its power generation

fossil fuel type used in theefficiency (ηelec [%]) obtained from

captivemanufacturer’s specification

system (EFfuel [tCO2/GJ])power

The power generation efficiency based onlower heating value (LHV) of the captive
7

For the option b)

generation

JCM_TH_F_PM_ver01.0

power generation system from theGenerated

manufacturer’s specification is applied;electricity by the captive power‫ܨܧ‬௘௟௘௖ = 3.6 ×100× ‫ܨܧ‬௙௨௘௟ߟ௘௟௘௖andgeneration

suppliedsystem(EGPJ,p[MWh/p]).
Fuel amount consumed by theb) Calculated from measured data

captive

powergeneration

The power generation efficiency calculatedsystem(FCPJ,p[massfrom monitored data of the amount of fuelvolume/p]).

input for power generation (‫ܥܨ‬௉௃,௣ ) and theNet calorific value (NCVfuelamount of electricity generated (‫ܩܧ‬௉௃,௣ )[GJ/mass or volume]) and CO2

during the monitoring period p is applied. Theemission factor of the fuelmeasurement is conducted with the monitoring(EFfuel [tCO2/GJ]) in order of

equipment to which calibration certificate ispreference:

issued by an entity accredited under

1) values provided by the fuelnational/international standards;

supplier;‫ܨܧ‬௘௟௘௖ = ‫ܥܨ‬௉௃,௣ × ܰ‫ܸܥ‬௙௨௘௟ × ‫ܨܧ‬௙௨௘௟ ×
Where:1‫ܩܧ‬௉௃,௣

2) measurement by the project
participants;
3) regional or national defaultܰ‫ܸܥ‬௙௨௘௟ : Net calorific value of consumed values;
fuel [GJ/mass or volume]

or4)

IPCC

defaultvalues

provided in tables 1.2 and 1.4
Note:of Ch.1 Vol.2 of 2006 IPCC

In case the captive electricity generation

Guidelines on National GHG

system meets all of the following conditions,Inventories. Lower value isthe value in the following table may beapplied.

applied to ‫ܨܧ‬௘௟௘௖ depending on the consumed[Captive electricity with diesel

・ The system is non-renewable generation

CDM approved small scale

fuel type.

fuel]
methodology: AMS-I.A.

system・ Electricity generation capacity of thesystem is less than or equal to 15 MW[Captive electricity with naturalgas]

fuel type‫ܨܧ‬௘௟௘௖Dieselfuel

Natural gas

0.8 *10.46 *2

2006 IPCC Guidelines on
National GHG Inventories forthe source of EF of natural gas.
CDM Methodological tool8

JCM_TH_F_PM_ver01.0*1 The most recent value at the time of"Determining the baseline

validation is applied.

efficiency of thermal or electric*2 The value is calculated with the equation inenergy generation systems

the option a) above. The lower value of default

version 02.0" for the default

effective CO2 emission factor for natural gas

efficiency for off-grid power(0.0543tCO2/GJ), and the most efficient value

plants.

of default efficiency for off-grid gas turbine
systems (42%) are applied.

9