Efficiency Improvement of Co-generation System by Installation of Heat Exchanger in Fiber Factory

Representative Participant: NIPPON STEEL ENGINEERING CO., LTD.

Partner Participant: NS-OG Energy Solutions (Thailand) Ltd.

Host Country: Thailand

Selected Year: 2019

Type: JCM Model Project

Sector: Energy Efficiency

Not registered

Active

Outline of GHG Mitigation Activity

This project aims to efficiently utilize unused thermal energy of the co-generation system to heat boiler feed water. A heat exchanger is additionally installed to the existing co-generation system which is composed of 7 MW gas turbine and heat recovery steam generator equipped with duct burner.

Natural gas fuel used for duct burner is reduced by approx. 4%, by increasing the temperature of boiler feed water by approx. 20 degrees Celsius.

Expected GHG Emission Reductions

359 tCO2-eq./year

= (Reference CO2 Emission) − (Project CO2 Emission)

(Reference CO2 Emission)
= [(BFW temp. after heat recovery) − (BFW temp. before heat recovery)]
× (BFW amount) × (Specific heat of water)
÷ (Boiler efficiency) × (CO2 emission coefficient of fuel)
BFW: Boiler Feed Water
(Project CO2 Emission) = 0