JCM_BD_AM001_ver012.0
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Joint Crediting Mechanism Approved Methodology BD_AM001“Energy Saving by Introduction of High Efficiency Centrifugal Chiller”
A. Title of the methodology
Energy Saving by Introduction of High Efficiency Centrifugal Chiller, Version 21.0

B. Terms and definitions
Terms
Centrifugal chiller

Definitions
A centrifugal chiller is a chiller applying a centrifugal
compressor. It is commonly used for air-conditioning withhuge 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 torepresent a cooling capacity per one chiller unit and not for asystem with multiple chiller units.

Periodical check

Periodical check is a periodical investigation of chiller doneby manufacturer or agent who is authorized by themanufacturer, in order 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, commerce facilities etc. in Bangladesh.

Calculationofemissions

reference 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.

Calculation
emissionsofproject Project emissions are GHG emissions from using project chiller,
calculated with power consumption of project chiller and CO2

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emission factor for electricity consumed.
Monitoring parameterPower consumption of project 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 1

Project chiller is a centrifugal chiller with a capacity of less than 1,150 USRt.
* 1 USRt = 3.52 kW

Criterion 2

COP for project chiller i calculated under the standardizing temperature
conditions* (COPPJ,tc,i) is more than 6.0.
COPPJ,tc,i is a recalculation of COP of project chiller i (COPPJ,i) adjusting
temperature conditions from the project specific condition to the standardizingconditions. COPPJ,i is derived in specifications prepared for the quotation orfactory acceptance test data at the time of shipment by manufacturer.
[equation to calculate COPPJ,tc,i]۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ = ۱‫۾۾۽‬۸,ܑ × [(‫ܜܝܗି܏ܖܑܔܗܗ܋܂‬,ܑ − ‫ܜܝܗି܌܍ܔܔܑܐ܋܂‬,ܑ + ‫܂‬۲‫ ܌܍ܔܔܑܐ܋‬+ ‫܂‬۲‫) ܏ܖܑܔܗܗ܋‬COP୔୎,୲ୡ,୧

COP୔୎,୧

Tୡ୭୭୪୧୬୥ି୭୳୲,୧
Tୡ୦୧୪୪ୣୢି୭୳୲,୧

TDୡ୭୭୪୧୬୥÷ (૜ૠ − ૠ + ‫܂‬۲‫ ܌܍ܔܔܑܐ܋‬+ ‫܂‬۲‫]) ܏ܖܑܔܗܗ܋‬: COP of project chiller i calculated under the standardizing
temperature conditions* [-]: COP of project chiller i under the project specificconditions [-]: Output cooling water temperature of project chiller i set
under the project specific condition [degree Celsius]: Output chilled water temperature of project chiller i set
under the project specific condition [degree Celsius]: Temperature difference between condensing temperatureof refrigerant and output cooling water temperature
1.5 degree Celsius set as a default value [degree Celsius]

TDୡ୦୧୪୪ୣୢ

: Temperature difference between evaporating temperatureof refrigerant and output chilled water temperature,
1.5 degree Celsius set as a default value [degree Celsius]*The standardizing temperature conditions to calculate COPPJ,tc,i
Chilled water:
output7 degree Celsius2

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Criterion 3

input
12 degree Celsius
Cooling water:
output 37 degree Celsius
input
32 degree Celsius
Periodical check is conducted at least twice a year.

Criterion 4Ozone Depletion Potential (ODP) of the refrigerant used for project chiller iszero.

Criterion 5A plan for not releasing refrigerant used for project chiller is prepared. In thecase of replacing the existing chiller with the project chiller, a plan is prepared inwhich refrigerant used in the existing chiller is not released to the air e.g. re-useof the refrigerant. Execution of the prevention plan is checked at the time ofverification, in order to confirm that refrigerant used for the existing one
replaced by the project is not 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, ratioof 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 COP value tends to increase as the cooling capacity becomes larger.
2. The reference COP, which has a certain cooling capacity, is set at a maximum value incorresponding cooling capacity range.
3. The maximum values of COP in each cooling capacity ranges are defined as COPRE,i as
described in Section I.

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Sectoral scope: 03F.2. Calculation of reference emissions‫܀‬۳‫ = ܘ‬෍൛۳۱‫۾‬۸,ܑ,‫ × ܘ‬൫۱‫۾۾۽‬۸,‫܋ܜ‬,ܑ ÷ ۱‫܀۾۽‬۳,ܑ ൯ × ۳۴‫ ܋܍ܔ܍‬ൟ
ܑRE୮: Reference emissions during the period p [tCO2/p]EC୔୎,୧,୮ : Power consumption of project chiller i during the period p [MWh/p]

COP୔୎,୲ୡ,୧ : COP of project chiller i calculated under the standardizing temperature conditions[-]

COPୖ୉,୧ : COP of reference chiller i under the standardizing temperature conditions [-]EFୣ୪ୣୡ : CO2 emission factor for consumed electricity [tCO2/MWh]

G. Calculation of project emissionsPE୮‫۾‬۳‫ = ܘ‬෍൫۳۱‫۾‬۸,ܑ,‫ × ܘ‬۳۴‫ ܋܍ܔ܍‬൯ܑ: 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.
Parameter

Description of data

SourceCO2 emission factor for consumed electricity [Grid electricity]
EFelec[tCO2/MWh].

The

mostavailable

atrecentvalue

theoftime

When project chiller consumes only grid validation is applied and fixed4

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electricity or captive electricity, the project forthemonitoring

periodparticipant applies the CO2 emission factor thereafter. The data is sourcedrespectively.

from “Grid Emission Factor

When project chiller may consume both grid (GEF)

ofBangladesh”,electricity and captive electricity, the project endorsed by National CDM
participant applies the CO2 emission factor Committee unless otherwise
with lower value.

instructedbytheJoint

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

CDM approved small scale
methodology: AMS-I.AFor captive electricity including
cogeneration system, it is determined based

For the option ab)on the following options:

Specification of the captive
power generation systema) 0.8*

provided by the manufacturer*The most recent value available from CDM(ηelec [%]).

approved small scale methodology AMS-I.A

CO2 emission factor of theat the time of validation is applied.

fossil fuel type used in thecaptive power generationab) Calculated from its power generation

system (EFfuel [tCO2/GJ])

efficiency (ηelec [%]) obtained frommanufacturer’s specification

For the option bc)

The power generation efficiency based on

Generated and supplied

lower heating value (LHV) of the captive

electricity by the captive

power generation system from thepower generation systemmanufacturer’s specification is applied;(EGPJ,p [MWh/p]).

‫ܨܧ‬௘௟௘௖ = 3.6 ×100× ‫ܨܧ‬௙௨௘௟η௘௟௘௖

Fuel amount consumed by thecaptive power generation
system (FCPJ,p [mass orbc) Calculated from measured datavolumeweight/p]).

The power generation efficiency calculated

Net calorific value andfrom monitored data of the amount of fuel(NCVfuel [GJ/mass or

input for power generation (‫ܥܨ‬௉௃,௣ ) and thevolumeweight]) CO2 emission

amount of electricity generated (‫ܩܧ‬௉௃,௣ )5factor of the fuel (EFfuelJCM_BD_AM001_ver012.0
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during the monitoring period p is applied.

[tCO2/GJ]) in order ofThe measurement is conducted with thepreference:monitoring equipment to which calibration

1) values provided by the fuelcertificate is issued by an entity accredited

supplier;

under national/international standards;

2) measurement by the project‫ܨܧ‬௘௟௘௖ = ‫ܥܨ‬௉௃,௣ × ܰ‫ܸܥ‬௙௨௘௟ × ‫ܨܧ‬௙௨௘௟×Where:1‫ܩܧ‬௉௃,௣

participants;
3) regional or national defaultvalues;4) IPCC default valuesܰ‫ܸܥ‬௙௨௘௟ : Net calorific value of consumed provided in table 1.2 and table

fuel [GJ/mass or volumeweight]

1.4 of Ch.1 Vol.2 of 2006

IPCC Guidelines on National
Note:

GHG Inventories. Lower value

In case the captive electricity generation

is applied.

system meets all of the following conditions,the value in the following table may be[Captive electricity with diesel

applied to ‫ܨܧ‬௘௟௘௖ depending on thefuel]consumed fuel type.

CDM approved small scale
methodology: AMS-I.A.

・ The system is non-renewable generation
system[Captive electricity with・ Electricity generation capacity of thesystem is less than or equal to 15 MWnatural gas]
2006 IPCC Guidelines on
National GHG Inventories forfuel type‫ܨܧ‬௘௟௘௖

Dieselfuel

Natural gas

0.8 *10.46 *2

the source of EF of naturalgas.
CDM

Methodological"Determining

the*1 The most recent value at the time ofefficiency

ofthermal

validation is applied.

electricenergy

toolbaselineorgeneration

systems version 02.0" for the*2 The value is calculated with the equation

default efficiency for off-gridin the option a) above. The lower value ofpower plants.

default effective CO2 emission factor fornatural gas (0.0543tCO2/GJ), and the mostefficient value of default efficiency foroff-grid gas turbine systems (42%) are
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COPRE,iThe COP of the reference chiller i is selected

The default COP value isfrom the default COP value in the following derived from the result oftable in line with cooling capacity of the survey on COP of chillers
from manufacturers that has

project chiller i.

high market share. The survey
should prove the use of clear

COPRE,i
Cooling
capacity/unit (USRt)

x<300

300≦
x<700

700≦
x<1,150

methodology.

COPRE,i

5.13

5.50

5.66

from survey result which isTheCOPRE,ishould be revised if necessary
conducted by JC or project
participants.

COPPJ,iThe COP of project chiller i under the Specifications
project specific condition.

ofprojectchiller i prepared for thequotationoracceptance

test

factory
databymanufacturer
Tcooling-out,

Output cooling water temperature of project Specifications

ofprojectchiller i set under the project specific chiller i prepared for thecondition.

quotation

oracceptance

test

factory
databymanufacturer
Tchilled-out,iOutput chilled water temperature of project Specifications

ofprojectchiller i set under the project specific chiller i prepared for thecondition.

quotation

oracceptance

test

factory
databymanufacturer

History of the document
Version01.0

Date
9 March 201602.0** month year

Contents revised
JC3, Annex 10
Initial approval.
Revision to:
Change the description of "CO2 emission factor for consumed
electricity (for captive electricity)" and “Measurement
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methods and procedures”.

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