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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 Sony Corporate Services (Japan) Corporation
submitting this form
Sectoral scope(s) to which the Proposed 3. Energy demandMethodology applies
Title of the proposed methodology, and Energy Saving by Introduction of Multi-stage
version number

Oil-Free Air Compressor, Version 1.0

List of documents to be attached to this form

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

Additional information
Appendix 1: Additional Information on theProposed Methodology “Energy Saving byIntroductionofMulti-stageCompressor”
Date of completion

02/08/2016

History of the proposed methodology
Version1.0

Date
02/08/2016

Contents revisedFirst edition

1Oil-FreeAir

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A. Title of the methodology
Energy Saving by Introduction of Multi-stage Oil-Free Air Compressor, Version 1.0

B. Terms and definitions
Terms

Definitions

Multi-stage oil-free air

A device with more than one compression stage withoutcompressor

using lubricating oil to compress air, nitrogen or inert gases
to make the pressure of gas higher than that of the inlet.

Specific conditions

The specific conditions for this methodology are defined as
below, following ISO 1217:2009.
Ambient temperature = 20 degrees Celsius,
Ambient pressure = 0 MPa (Gauge pressure),
Relative humidity = 0%,
Cooling water/air = 20 degrees Celsius,
Effective working pressure at discharge valve = 0.7 MPa(Gauge pressure).

Free air delivery (FAD)

The actual quantity of compressed air converted to the inlet
conditions of the compressor. The unit is m3/min.

Periodical check

A periodical investigation of air compressor conducted bymanufacturer or agent who is authorized by the manufacturer,
in order to maintain air compressor performance.

Specific power (SP)An indicator of efficiency of air compressor, calculated withelectric motor power (nominal output power) [kW] and free
air delivery [m3/min]

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction This methodology applies to the project that aims at savingenergy by introducing multi-stage oil-free air compressor in2

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manufacturing process of semiconductors.
Calculationofreference Reference emissions are GHG emissions from using reference

emissions

air compressor, calculated with power consumption of project
air compressor, specific power (SP) of reference/project air
compressors and CO2 emission factor for electricity consumed.

Calculationofproject Project emissions are GHG emissions from using project airemissions

compressor, calculated with power consumption of project air
compressor and CO2 emission factor for electricity consumed.

Monitoring parametersPower consumption of project air compressorThe amount of fuel consumed and the 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 air compressor is a non-inverter type multi-stage oil-free air compressor
with an electric motor power of 55kW, 75kW, 110kW, 132kW, 145kW, 160kW,
or 200kW installed in manufacturing process of semiconductors.

Criterion 2

Periodical check is planned more than one (1) time annually.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Electricity consumption by air compressor

CO2

Project emissions
Emission sources

GHG types

Electricity consumption by air compressor

CO2F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying power consumption of project aircompressor, specific power (SP) for reference/project air compressors, and CO2 emission factor
3

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for electricity consumed.
SP of reference air compressor is conservatively set as a default value in the following manner
to ensure the net emission reductions.
1. The most efficient value is selected for each motor power of air compressors from thecollected SP values available in Thai market and determined as the reference SP.

2. The value of SP is defined as SPRE,sc,i described in Section I.

F.2. Calculation of reference emissions: Reference emissions during the period p [tCO2/p]: Power consumption of project air compressor i during the period p [MWh/p]: SP of project air compressor i calculated under the specific conditions [kW·min/m3]: SP of reference air compressor i under the specific conditions [kW·min/m3]: CO2 emission factor for consumed electricity [tCO2/MWh]

G. Calculation of project emissions: Project emissions during the period p [tCO2/p]: Power consumption of project air compressor i during the period p [MWh/p]: CO2 emission factor for consumed electricity [tCO2/MWh]

H. Calculation of emissions reductions: Emission reductions during the period p [tCO2/p]4

JCM_TH_F_PM_ver01.0: 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
CO2 emission factor for consumed electricity.

Source[Grid electricity]

When project air compressor consumes only The most recent value available
grid electricity or captive electricity, the at the time of validation is
project participant applies the CO2 emission applied and fixed for thefactor respectively.

monitoring period thereafter.
The data is sourced from “GridWhen project air compressor may consume Emission

Factor(GEF)ofboth grid electricity and captive electricity, the Thailand”,endorsedby

project participant applies the CO2 emission Thailand

GreenhouseGas

factor with lower value.

ManagementOrganization

unless otherwise instructed by[CO2 emission factor]

the Joint Committee.

For grid electricity: The most recent value
available from the source stated in this table at [Captive electricity]
the time of validation

For the option a)
CDM approved small scale

For captive electricity, it is determined based

methodology: AMS-I.A

on the following options:
For the option b)a) 0.8*Specification of the captive*The most recent value available from CDM

power

approved small scale methodology AMS-I.A

provided by the manufacturer

at the time of validation is applied.

(ηelec [%]).

generationsystem

CO2 emission factor of theb) Calculated from its power generation

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

manufacturer’s specification

system (EFfuel [tCO2/GJ])power

The power generation efficiency based onlower heating value (LHV) of the captive
5For the option c)generation

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power generation system from theGenerated

andmanufacturer’s specification is applied;electricity by the captive power
generation

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

captive

powergeneration

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

input for power generation (Netvalueand) and theamount of electricity generated ()calorific(NCVfuel [GJ/mass or weight])

during the monitoring period p is applied. The

CO2 emission factor of the fuelmeasurement is conducted with the monitoring(EFfuel [tCO2/GJ]) in order ofequipment to which calibration certificate ispreference:

issued by an entity accredited under1) values provided by the fuelnational/international standards;supplier;2) measurement by the project
participants;

Where:

3) regional or national default: Net calorific value of consumed

fuel [GJ/mass or weight]

values;4) IPCC default values
provided in table 1.4 of Ch.1
Vol.2 of 2006 IPCC Guidelines
on National GHG Inventories.
Lower value is applied.

The SP of the reference air compressor i for Specifications of project air
each motor power is set as a default value in compressor i prepared for thethis methodology as shown in the table below.

quotation or factory acceptancetest data by manufacturer.

Motor Power [kW]Reference SP55

5.73

The default SP value is derived

75

6.00

from the result of survey on SP110

5.67

of

132

5.84

compressors

145

6.14

manufacturers that have high

160

5.65

market share in Thailand.

200

5.49

non-inverter oil-free air

The SPRE,sc,i is revised if6from

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necessary from survey result
It is noted that the SP value is calculated underwhich is conducted by JC orthe specific conditions

project participants every threeyears.

SP of project air compressor i under theSpecifications of project air

project specific conditions.

compressor i prepared for thequotation or factory acceptancetest data by manufacturer.

SP of project air compressor i under theSpecifications of project air

specific conditions is calculated by thecompressor i prepared for thefollowing equation:

quotation or factory acceptancetest data by manufacturer.

: Heat capacity ratio (Dried Air) = 1.4: Number of compression stages of project air
compressor i: Suction pressure of project air compressor i under
the project specific conditions [MPa(abs)] (Default value
is set at atmospheric pressure = 0.101[MPa(abs)]): Suction pressure of project air compressor iunder the specific conditions [MPa(abs)] (Default value
is set at atmospheric pressure = 0.101[MPa(abs)]): Suction temperature of project air compressor iunder the project specific conditions [K] (Value from theproduct catalogue or manufacturer’s specification): Suction temperature of project air compressor iunder the specific conditions [K] (Default value is set at293.0[K]): Discharge pressure of project air compressor iunder the project specific conditions [MPa(Gaugepressure)] (Value from the product catalogue ormanufacturer’s specification): Discharge pressure of project air compressor i7

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under the specific conditions [MPa(abs)] (=0.101[MPa(abs)] + 0.7 [MPa(Gauge pressure)] =0.801[MPa(abs)])8