Methodology : TH_PM012

Methodology No. TH_PM012
Sectoral scope 3. Energy Demand
Title Energy Saving by Introduction of High Efficiency Once-through Boiler and Installation of Economizer into Existing Boiler, Version 01.0
Summaries GHG emission reduction measures : This methodology covers one or both of the following two measures: (1) the introduction of high efficiency once-through boiler (hereinafter called “project boiler (OT)”) and (2) the installation of economizer into existing boiler (hereinafter called “project boiler (EC)”). (1) Compared with the fire tube boilers which dominate Thailand market (hereinafter called “reference boiler (OT)”), the efficiency of “project boiler (OT)” is higher and its fuel consumption is lower. (2) Through the installation of economizer to the existing boiler, feed water to the boiler is preheated by using exhaust gas heat from the boiler. It will contribute to the reduction of fuel consumptions of existing boiler without economizer (hereinafter called “reference boiler (EC)”). Thus, the introduction of once-through boiler and the installation of economizer into the existing boiler will contribute to GHG emission reduction.
Calculation of reference emissions : Reference emissions are calculated from one or both of the following two measures: (1) the introduction of once-through boiler, and (2) the installation of economizer into the existing boiler. (1) Reference emissions for the introduction of once-through boiler (hereinafter called “reference emission (OT)”) are calculated based on the efficiency of the boiler currently dominant in the Thailand market and emission factor of the fuel of reference boiler (OT). Conservative estimation of reference emission (OT) is made by taking into consideration the following points: (i) higher efficiency is applied for the reference boiler (OT), especially in low load range (ii) lower CO2 emission factor of fuel used in reference boiler (OT) is selected from IPCC guideline. (2) Reference emissions for the installation of economizer into existing boiler (hereinafter called “reference emission (EC)”) are calculated based on the efficiency of reference boiler (EC) and emission factor of the fuel of reference boiler (EC). Conservative estimation of reference emission (EC) is made by taking into consideration that lower CO2 emission factor is selected from IPCC guideline with regard to the fuel used in reference boiler (OT).
Calculation of project emissions : Project emissions are calculated from one or both of the following two measures: (1) the introduction of once-through boiler, and (2) the installation of economizer into existing boiler. (1) Project emissions for the introduction of once-through boiler (hereinafter called “project emission (OT)”) are calculated on the basis of monitored fuel consumption and emission factor of the fuel of project boiler (OT). (2) Project emissions for the installation of economizer into existing boiler (hereinafter called “project emission (EC)”) are calculated on the basis of monitored fuel consumption and emission factor of the fuel of project boiler (EC).
Monitoring parameters : The amount of fuel consumption of project boiler (OT); The amount of fuel consumption of project boiler (EC)
Status Public inputs closed
Methodology Proponent Nippon Koei Co., Ltd.
Proposed Methodology
Public inputs
  • 02 Oct 19   -  16 Oct 19