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Joint Crediting Mechanism Approved Methodology MM_AM003“Energy Saving by Introduction of High Efficiency Once-through Boiler”
A. Title of the methodology
Energy Saving by Introduction of High Efficiency Once-through Boiler, Version.01.0

B. Terms and definitions
Terms

Definitions

Once-through boiler

A once-through boiler is a boiler without recirculation
where water flows through the economizer, furnace wall,and evaporating and superheating tubes, sequentially.
Once-through boiler is used to supply heat in factory andcommercial facility.

Periodical check

Periodical check is a scheduled examination of the project
boiler conducted by manufacturer or agent who isauthorized by the manufacturer in order to maintainperformance of the boiler.

Boiler efficiency

Boiler efficiency is the percentage of heat quantity used togenerate steam against total heat quantity provided by afuel.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction This methodology involves the installation of high efficiency
once-through boiler. Compared with the water tube boilers andfire tube boilers which dominate Myanmar market, theefficiency of once-through boiler is higher and fuelconsumption is less. Thus the introduction of once-throughboiler will contribute to the GHG emission reductions.

Calculation
emissions

ofreference Reference emissions are calculated based on the efficiency ofthe boiler currently dominant in the Myanmar market.

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Conservative estimation of reference emissions is made bytaking the following points into consideration: (i) lower CO2
emission factor is selected from IPCC guideline with regard to
the fuel used in reference boiler, and (ii) higher efficiency isapplied for the reference boiler especially in low load range.
Calculation

ofproject Project emissions are calculated on the basis of monitored fuelemissions

consumption and emission factor of the fuel of the project
boiler.

Monitoring parameters

The amount of fuel consumption

D. Eligibility criteria

This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1
Criterion 2

The project boiler is a once-through boiler with a rated capacity of 7 ton/hour
per unit or less (equivalent evaporation)
Periodical check and maintenance by the manufacturer of boiler or authorized
agent is implemented at least once a year.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Fuel consumption by reference boiler

CO2
Project emissions

Emission sources

GHG types

Fuel consumption by project boiler

CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated based on the efficiency of the water tube and fire tube
boilers which dominate the boiler market for industries in Myanmar. The fuel types widelyused in Myanmar are oil, followed by coal. Natural gas is mainly used in power sector and not
distributed to private industry sector.

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In order to ensure net emission reductions, a higher efficiency of the reference boiler (89%) isadopted to calculate the reference emissions. In addition, 1) compared with reference boiler(oil and gas type), once-through boiler (project boiler, oil and gas type) can maintain highefficiency even at low load range, which improves the operating efficiency of project boiler,and 2) compared with reference boiler (coal), operational efficiency of the project boiler ishigher due to better combustion control, which also ensures the net emission reductions. Inaddition, to calculate the reference emission conservatively, lower emission factor stated in2006 IPCC guidelines is adopted to secure the net emission reductions.

F.2. Calculation of reference emissions

஗RE୮ = ∑௜ ∑௝ ቀFC୮,୧,୨,୔୎ × NCV୧,୨,୔୎ × EFୖ୉ × ஗౟,ౌె ቁRE୮౎ు: Reference emissions during the period p [tCO2/p]FC୮,୧,୨,୔୎ : The amount of fuel consumption of project boiler i for the fuel type j during theperiod p [mass or volume unit/p]NCV୧,୨,୔୎ : Net calorific value of fuel used by project boiler i for the fuel type j [GJ/mass orvolume unit]EFୖ୉: CO2 emission factor of fuel used by reference boiler [tCO2/GJ]η୧,୔୎

: Efficiency of project boiler i [-]ηୖ୉: Efficiency of reference boiler [-]G. Calculation of project emissionsPE୮PE୮ = ∑௜ ∑௝൫FC୮,୧,୨,୔୎ × NCV୧,୨,୔୎ × EF୧,୨,୔୎ ൯: Project emissions during the period p [tCO2/p]FC୮,୧,୨,୔୎

: The amount of fuel consumption of project boiler i for the fuel type j during theperiod p [mass or volume unit]

NCV୧,୨,୔୎ : Net calorific value of fuel used by project boiler i for the fuel type j [GJ/mass orvolume unit]EF୧,୨,୔୎ : CO2 emission factor of fuel used by project boiler i for the fuel type j [tCO2/GJ]

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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
NCV୧,୨,୔୎Description of dataSource

Net calorific value of fuel used by project boiler In order of preference:
i for the fuel type j [GJ/mass or volume unit](1) Net calorific value(lower heating value)
provided by fuel supplier orboiler manufacturer, (2)IPCC default values at thelower limit in Table 1.2 ofChapter 1 of Vol. 2 of the“2006 IPCC Guidelines for
National GHG Inventories”

EF୧,୨,୔୎

CO2 emission factor of fuel used by the project IPCC default value fromboiler i for the fuel type j [tCO2/GJ]

Table 1.4 of Chapter 1 ofVol. 2 of the “2006 IPCC
Guidelines for National
GHG Inventories”

EFୖ୉

CO2 emission factor of fuel used by the reference IPCC default value fromboiler [tCO2/GJ]

Table 1.4 of Chapter 1 of

In case the project boiler replaces an existing Vol. 2 of the “2006 IPCC
boiler, or a planned boiler of which plan has been Guidelines for National
officially approved such as through boiler GHG Inventories”
installation permit or initial environmental
examination/ environmental impact assessment,
the fuel of the existing or planned boiler isapplied.
Otherwise, the value is the same as EF୧,୨,୔୎ .
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Efficiency of project boiler i [-]Specifications of the project
boiler or factory test data of
the project boiler by themanufacturerηୖ୉

Efficiency of reference boiler [-][Additional information]

The default value of ηୖ୉ is set as 0.89.

Market survey in Myanmar

History of the document
Version01.0

Date
16 January 2020

Contents revisedElectronic decision by the Joint Committee
Initial approval.

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