JCM_ID_AM003_ver02.0
Sectoral scope: 03
Joint Crediting Mechanism Approved Methodology ID_AM003“Installation of Energy-efficient Refrigerators Using Natural Refrigerant at Food Industry
Cold Storage and Frozen Food Processing Plant”
A. Title of the methodology
Installation of Energy-efficient Refrigerators Using Natural Refrigerant at Food Industry Cold
Storage and Frozen Food Processing Plant, Version 2.0

B. Terms and definitions
Terms
Two stage compressor

Definitions
A two stage compressor is a compressor equipped with a low
stage compressor and a high stage compressor between anevaporator and a condenser which increases the pressure oflow pressure refrigerant gas from the evaporator up to theintermediate pressure using the low stage compressor andfurther increases the pressure of the refrigerant gas using thehigh stage compressor to feed it to the condenser.

Secondary loop cooling system

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. The
secondary loop cooling system primarily consists of therefrigerator which is mainly composed of the compressor andheat exchangers as the primary refrigeration cycle andpumps, 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 ancillary

I-1

JCM_ID_AM003_ver02.0
Sectoral scope: 03
equipments are not included in the COP calculation.
The temperature conditions at which COPs are calculated inthis methodology are shown below:<For cold storage>
Note : Temperature condition: - 25 deg. C
Cooling water fed to condenser: inlet 32 deg. C<For individual quick freezer>
Note : Temperature condition: - 35 deg. C
Cooling water fed to condenser: inlet 32 deg. C
Individual quick freezer is used for the purpose of continuous
freezing for food products fed by a belt conveyor system.
Natural refrigerant

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 doneby 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

emission

Summaryreduction This methodology applies to projects that aim to save energy bymeasures

introducing high efficiency refrigerators to the food industry
cold storage and frozen food processing plants in Indonesia.

Calculation

ofreference Reference emissions are GHG emissions from the usage ofemissions

reference refrigerators, calculated by using data of power
consumption of project refrigerator, ratio of COPs ofreference/project refrigerators and CO2 emission factor forelectricity consumed.

Calculationofproject Project emissions are GHG emissions from the usage of projectemissionsrefrigerator, calculated with power consumption of project
refrigerator and CO2 emission factor for electricity consumed.

Monitoring parameters

Amount of electricity consumed by project refrigerator

I-2

JCM_ID_AM003_ver02.0
Sectoral scope: 03

Electricity imported from the grid, where applicableOperating time of captive electricity generator, whereapplicable

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

The project installs cooling system at food industry cold storage and frozen foodprocessing plants for the purpose of chilling the food products to below -20 deg.
C.

Criterion 2

The project system is a secondary loop cooling system using natural refrigerant.
CO2 is used as the secondary refrigerant in the system.

Criterion 3

The refrigerator applied in the project cooling system is a two stage compressor
refrigerator with a cooling capacity as shown below:
For cold storage: less than 340kW
For individual quick freezer: less than 260kW

Criterion 4

The compressor of the project refrigerator is controlled by inverter.

Criterion 5

COP of the project refrigerator i (COPPJ,i) is shown below:
For cold storage: more than 2.0
For individual quick freezer: more than 1.5

Criterion 6

Periodical check at least once a year is planned.

Criterion 7

Plan for not releasing the primary refrigerant used for project refrigerator isprepared. In the case of replacing the existing refrigerator with the project
refrigerator, refrigerant used for the existing refrigerator is not released to the air.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Electricity consumption by the reference refrigerator

CO2

Project emissions
Emission sources

GHG types

Electricity consumption by the project refrigerator

I-3

CO2

JCM_ID_AM003_ver02.0
Sectoral scope: 03
F. 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 forelectricity consumed.
Four types of cooling system are identified as possible cooling systems except for the projectsystem: HFC dry expansion (single loop), NH3 flooded, pump system (single loop), HFC/brine(secondary loop) and NH3/brine (secondary loop). This methodology ensures that a net emission
reduction is achieved by applying the following conservative assumptions: COP RE value adopted:
The maximum COP values of refrigerators among the available data of the possible type
cooling systems within the range specified by Criterion 3 is defined as COPRE (1.71 for coldstorage, 1.32 for individual quick freezer). The most common COP values lie between 1.60 and
1.65 for cold storages and between 1.20 and 1.25 for individual quick freezers.
 Electricity consumption of the pump for the secondary refrigerant:
Among the possible types of refrigerators, two possible cooling systems that use the secondary
loop consume more electricity since the brine pump consumes more electricity than the CO2pump in the project cooling system. However, emissions from electricity consumption by thepump are not included in the emission calculations. The other two possible cooling systems
using single loop have pumps that require almost equal amount of electricity to the project
cooling system.
 Emissions associated with refrigerant loss from refrigerator:
Among the four possible types of cooling systems, two cooling systems use HFCs (R404A,R507A) as refrigerant and these have high GWP (3,000-4,000). The project cooling system uses
a natural refrigerant that has a very small GWP (CO2: 1, NH3: less than 1). Emissions associatedwith the loss of refrigerant are not counted in the emission reduction calculation.
 Project refrigerator equipped with inverter:
The project refrigerator is controlled by inverter (as specified by Criterion 4). In thismethodology, COP is defined under the condition of full load although in reality a cold storageis often operated under the condition of partial load where the efficiency of the refrigerator
without inverter tends to decrease because of its intermittent operation. Although it is not clear

I-4

JCM_ID_AM003_ver02.0
Sectoral scope: 03
whether all the refrigerators of the four possible types of cooling systems are equipped withinverter, calculating emissions based on the COPs of full load 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
Reference emissions are calculated by the following equation.
REp = ∑୧൛EC୔୎,୧.୮ × ൫COP୔୎,୧ ÷ COPୖ୉,୧ ൯ × EFୣ୪ୣୡ ൟREp:

Reference emissions during the period p [tCO2/p]

ECPJ, i,p:

Amount of electricity consumption of the project refrigerator i during theperiod p [MWh/p]

COPPJ,i:

COP of the project refrigerator type i

COPRE,i:

COP of the reference refrigerator type i

EFelec:CO2 emission factor for consumed electricity [tCO2/MWh]

G. Calculation of project emissions
Project emissions are calculated by the following equation.
PEp = ∑୧൫EC୔୎,୧.୮ × EFୣ୪ୣୡ ൯PEp:

Project emissions during the period p [tCO2/p]

ECPJ,i,p:

Amount of electricity consumption of the project refrigerator i during theperiod p [MWh/p]

EFelec:CO2 emission factor for consumed electricity [tCO2/MWh]

H. Calculation of emissions reductions
Emissions reductions are calculated as the difference between the reference emissions and theI-5

JCM_ID_AM003_ver02.0
Sectoral scope: 03
project emissions, as follows:
ERp=REp − PEp

ERp: Emissions 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]

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

SourceCO2 emission factor for consumed electricity.

[Grid electricity]

When project refrigerator consumes only grid The most recent value available atelectricity or captive electricity, the project the time of validation is applied
participant applies the CO2 emission factor and fixed for the monitoring
respectively.

period thereafter. The data is

When project refrigerator may consume both sourced from “Emission Factors
grid electricity and captive electricity, the ofElectricity

Interconnection

project participant applies the CO2 emission Systems”, National Committee on
factors for grid and captive electricity Clean Development Mechanism
proportionately.

Indonesian DNA for CDM unlessotherwise instructed by the Joint

Proportion of captive electricity is derived Committee.
from dividing captive electricity generated by [Captive electricity]
total electricity consumed at the project site. CDM

approvedsmall

The total electricity consumed is a summation methodology: AMS-I.A.
of grid electricity imported (EIgrid,p) andcaptive electricity generated (EGgen,p)* during
the monitoring period.
* Captive electricity generated can be derived
frommetering

electricitygeneratedor

multiplying monitored operating time (hgen,p)by rated capacity of generator (RCgen).

I-6scaleJCM_ID_AM003_ver02.0
Sectoral scope: 03[CO2 emission factor]
For grid electricity (EFelec,grid): The mostrecent value available from the source statedin this table at the time of validationFor

captiveelectricity(EFelec,cap):

0.8*[tCO2/MWh]*The most recent value available from CDM
approved small scale methodology AMS-I.A.
at the time of validation is applied.
COPRE,i

COP of the reference refrigerator i.

Specifications for the quotation or

The default values for COPRE,i are set as factory acceptance test data at thefollows:time of shipment by manufacturer.

For cold storage: 1.71
For individual quick freezer: 1.32

The default COP values arederived from the maximum valueof COP among the available dataof

thepossible

types

ofrefrigerators except project within
the range specified by Criterion 3.
The survey should prove the useofclear

methodology.

TheCOPRE,i should be revised if
necessaryfromsurvey

resultwhich is conducted by JC orproject participants every threeyears.
COPPJ,i

COP of the project refrigerator i

Specifications for the quotation orfactory acceptance test data at thetime of shipment by manufacturer.

RC୥ୣ୬Rated

capacityofgenerator,applicable.

where Specification of generator for
captive electricity

History of the document
Version02.0

Date
10 November 2015

Contents revisedElectronic decision by the Joint Committee

I-7

JCM_ID_AM003_ver02.0
Sectoral scope: 0301.0

30 October 2014

Revisions to: Change the description of CO2 emission factor for
consumed electricity and COP of the reference
refrigerator i in Section I: Change the description of “Measurement methods andprocedures” for the amount of electricity consumption of theproject refrigerator, grid electricity imported and monitored
operating time in the “Table 1: Parameters monitored expost” of the Monitoring Spreadsheet; Add a parameter of captive electricity generated in the“Table 1: Parameters monitored ex post” of the Monitoring
Spreadsheet; and Make editorial changes to the descriptions in “Table 2:
Project-specific parameters to be fixed ex ante” of theMonitoring Spreadsheet.
JC3, Annex 5
Initial approval.

I-8