JCM_CR_AM002_ver01.0
Sectoral scope: 03
Joint Crediting Mechanism Approved Methodology CR_AM002“Energy Saving by Introduction of High Efficiency Centrifugal Chiller”
A. Title of the methodology
Energy Saving by Introduction of High Efficiency Centrifugal Chiller, Version 1.0

B. Terms and definitions
TermsDefinitions

Centrifugal chiller

A centrifugal chiller is a chiller equipped with a centrifugal compressor.
It is commonly used for air-conditioning with huge cooling load, e.g.,buildings, shopping malls or factories etc.

Cooling capacity

Cooling capacity is the ability 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 with multiple chiller
units.

Periodical check

Periodical check is a periodical investigation of chiller done by
manufacturer or agent who is authorized by the manufacturer, in order tomaintain chiller performance.

IPLV (IntegratedIPLV is a performance indicator of chillers described as a weighted

Part Load Value)

average of the energy efficiency ratio (EER [kW/kW]) under four
different part loads and it is defined in the standard “AHRI Standard
550/590(I-P)” or “AHRI Standard 551/591(SI)” by the Air-Conditioning,
Heating, and Refrigeration Institute (AHRI) of the United States.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction Saving energy by introducing high efficiency centrifugal chiller
for the target factory, hotel, and commerce facilities etc. inCosta Rica.

Calculation
emissions

ofreference GHG emissions from using reference chiller, calculated withpower consumption of project chiller, ratio of IPLVs of1

JCM_CR_AM002_ver01.0
Sectoral scope: 03reference/project chillers and CO2 emission factor for electricityconsumed.
Calculationofproject GHG emissions from using project chiller, calculated withemissions

power consumption of project chiller and CO2 emission factor
for electricity consumed.

Monitoring parametersPower consumption of project chiller

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

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 an inverter type centrifugal chiller with a capacity greater thanor equal to 165USRt but less than 3500USRt.
Note : 1 USRt = 3.52 kW

Criterion 2

IPLV for project chiller i certified by AHRI is more than the threshold IPLV
values set in the table below. (“x” in the table represents cooling capacity perunit.)
Cooling capacityper unit [USRt]

165≤x<20002000≤x<3500

Threshold IPLV value

8.04

9.60

Criterion 3

Periodical check is planned more than 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 is prepared.
In the case of replacing the existing chiller with the project chiller, a plan forprevention of releasing refrigerant used in the existing chiller to the air (e.g.
re-use of the equipment) is prepared. Execution of this plan is checked at thetime 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.

2JCM_CR_AM002_ver01.0
Sectoral scope: 03
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, ratioof IPLVs for reference/project chillers, and CO2 emission factor for electricity consumed.
The IPLV of reference chiller is conservatively set as a default value in the following manner toensure the net emission reductions.
1. The reference IPLV value varies by its cooling capacity.
2. The maximum values of IPLV in each cooling capacity range set for this methodology aredefined as IPLVRE,i as described in Section I.
F.2. Calculation of reference emissionsRE୮‫܀‬۳‫ = ܘ‬෍൛۳۱‫۾‬۸,ܑ,‫ × ܘ‬൫۷‫۾܄ۺ۾‬۸,ܑ ÷ ۷‫܀܄ۺ۾‬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]

IPLV୔୎,୧ : IPLV of project chiller i certified by AHRI [-]IPLVୖ୉,୧ : IPLV of reference chiller i certified by AHRI [-]EFୣ୪ୣୡ : CO2 emission factor for consumed electricity [tCO2/MWh]

G. Calculation of project emissions‫۾‬۳‫ = ܘ‬෍൫۳۱‫۾‬۸,ܑ,‫ × ܘ‬۳۴‫ ܋܍ܔ܍‬൯ܑ

3

JCM_CR_AM002_ver01.0
Sectoral scope: 03PE୮

: 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]

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
ParameterEFୣ୪ୣୡ

Description of dataSource

CO2 emission factor for consumed electricity.
When project chiller consumes only grid electricity orcaptive electricity, the project participant applies theCO2 emission factor respectively.
When project chiller may consume both grid electricity
and captive electricity, the project participant applies
the CO2 emission factor for grid and captive electricity
proportionately.
Proportion of captive electricity is derived from
dividing

captiveelectricity

generated

by

total

electricity consumed at the project site. The total
electricity consumed is a summation of grid electricity[Grid electricity]
The most recent
value available at thetime of validation isapplied and fixed forthemonitoring
period thereafter. The
data is sourced from
“Factores de emisión
degasesefectoinvernadero”,
Instituto
Meteorológico
Nacional
unlessotherwise instructedbytheJointCommittee.

imported (‫ܫܧ‬௚௥௜ௗ,௣ ) and captive electricity generated(‫ܩܧ‬௚௘௡,௣ )* during the monitoring period.

* Captive electricity generated can be derived from [Captive electricity]
metering electricity generated or multiplying
monitored operating time (ℎ௚௘௡,௣ ) by rated capacity of For the option a)
generator (ܴ‫ܥ‬௚௘௡ ).

Specification of thecaptivepower4

JCM_CR_AM002_ver01.0
Sectoral scope: 03
Parameter

Description of data

Sourcegeneration
systemprovided by the[CO2 emission factor]
manufacturer (ηelecFor grid electricity: The most recent value available [%]).
from the source stated in this table at the time of CO2 emission factorof the fossil fuel typevalidation
used in the captive
power
generation
For captive electricity, it is determined based on thesystem(EFfuel[tCO2/GJ])
following options:
For the option b)a) Calculated from its power generation efficiency (ηelec Generatedand[%]) obtained from manufacturer’s specification
supplied electricity
The power generation efficiency based on lower by the captive power
generation
systemheating value (LHV) of the captive power generation(EGPJ,p [MWh/p]).
system from the manufacturer’s specification is Fuelamountconsumedbytheapplied;captivepower
100generation
system× ‫ܨܧ‬௙௨௘௟‫ܨܧ‬௘௟௘௖ = 3.6 ×η௘௟௘௖(FCPJ,p [mass orvolume/p]).
Net calorific valueb) Calculated from measured data
(NCVfuel [GJ/mass orThe power generation efficiency calculated fromvolume]) and CO2
monitored data of the amount of fuel input for power emission factor offuel(EFfuelgeneration ( ‫ܥܨ‬௉௃,௣ ) and the amount of electricity the[tCO/GJ])
in
order
2
generated (‫ܩܧ‬௉௃,௣ ) during the monitoring period p isof preference:applied. The measurement is conducted with the 1) values provided
monitoring equipment to which calibration certificate by the fuel supplier;is issued by an entity accredited under 2) measurement by
theprojectnational/international standards;
participants;
13)
regionalor‫ܨܧ‬௘௟௘௖ = ‫ܥܨ‬௉௃,௣ × ܰ‫ܸܥ‬௙௨௘௟ × ‫ܨܧ‬௙௨௘௟ ×‫ܩܧ‬௉௃,௣
national
default
values;
Where:4) IPCC defaultܰ‫ܸܥ‬௙௨௘௟ : Net calorific value of consumed fuelvalues provided in[GJ/mass or volume]tables 1.2 and 1.4 of
Ch.1 Vol.2 of 2006

Note:
In case the captive electricity generation system meets
all of the following conditions, the value in the5

IPCC Guidelines onNationalGHG

JCM_CR_AM002_ver01.0
Sectoral scope: 03
Parameter

Description of dataSource

following table may be applied to EFୣ୪ୣୡ depending

Inventories.

on the consumed fuel type.

value is applied.

The system is non-renewable generation system[Captive electricityElectricity generation capacity of the system iswith diesel fuel]less than or equal to 15 MW

CDM approved smallLower

scale methodology:
fuel typeEFୣ୪ୣୡDiesel
fuelNatural gas

0.8 *10.46 *2

AMS-I.A.
[Captive electricitywith natural gas]

*1 The most recent value at the time of validation is2006 IPCC

applied.

Guidelines on*2 The value is calculated with the equation in the National GHG
option a) above. The lower value of default effective Inventories for theCO2 emission factor for natural gas (0.0543tCO2/GJ), source of EF ofand the most efficient value of default efficiency for natural gas.
off-grid gas turbine systems (42%) are applied.

CDM
Methodological tool
"Determining

thebaseline efficiency ofthermal or electricenergygeneration

systems version02.0"
forthedefault

efficiency

foroff-grid

power

plants.
IPLVୖ୉,୧

The IPLV of the reference chiller i is selected from the The

default

IPLV

default IPLV value in the following table in line with value is derived fromcooling capacity of the project chiller i.

the result of survey(“x” in the table represents cooling capacity per unit.)

on IPLV of chillers
frommanufacturersthat has high market
Cooling capacity
per unit [USRt]

165≤x<20002000≤x<3500share.

The

surveyshould prove the use

6JCM_CR_AM002_ver01.0
Sectoral scope: 03
Parameter

Description of data
Reference
IPLV value

8.04

Source9.60

ofclearmethodology.

TheIPLVRE,i should be
revised if necessary
from survey result
which is conductedby JC orproject

participants.
IPLV୔୎,୧

The IPLV of project chiller i certified in accordance Specifications

ofwith the AHRI certification program of Water-Cooled project chiller i from
Water Chilling Packages Using Vapor Compression catalogue or prepared
Cycle, which is based on AHRI Standard 550/590 (I-P) for the quotation orand AHRI Standard 551/591 (SI).

factory

acceptance

test

data

manufacturer

History of the document
Version01.0

Date
12 March 2018

Contents revisedElectronic decision by the Joint Committee
Initial approval.

7by