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Study on heating ability improvement of heat and power cogeneration system by natural gas—Comparison between back pressure heating technology with 3S clutch and central heating technology based on absorption heat exchange

Zhao Xiling;Fu Lin;Liu Hua;Li Feng;Wang Xiao;Tsinghua University;  
In order to improve the heating ability of combined-cycle heat and power cogeneration system, studies and compares the back pressure heating technology with SSS clutch and the central heating technology of heat and power cogeneration based on absorption heat exchange(Co-ah),and analyses both the advantages and the shortages of the two kinds of technologies.Presents the system forms of the two kinds of technologies by case study,and gives the thermodynamic and economical analysis.Both technologies can improve the heating ability. Yet,the latter can recovery residual heat from both dead steam and exhaust smoke,so it is the comprehensive technology for improving heating capacity of thermal power plants.
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