Economic Analysis of Low-pressure Economizer Retrofit on 670t/h Coal-fired Unit. Issue 1 (June 2020)

• Record Type: Journal Article
• Authors: Zhou, Xingang; Huang, Xinyuan; Ding, Lirong; Liu, Jinglong; Duan, Chuanjun
• Is Part Of: IOP conference series. Volume 512:Issue 1(2020)
• Publication Date: 2020-06
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/512/1/012006
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: After long operation, heat transfer characteristics and flue gas pressure drop of low-pressure economizer are deviated from design value seriously. Through low-pressure economizer retrofit on a 670t/h coal-fired unit, the flue gas pressure drop is decreased to 597.04pa, less than the guarantee value 750Pa, the water saving of desulfurization spraying is 25.92t/h, the reduction of coal consumption for power generation is 2.80g/kW·h. Its energy-saving effect is obvious and transformation expectation is achieved.