都市ごみ発電における二流体サイクルの性能特性に関する研究

概要

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The two-fluid cycle is considered for municipal solid waste-(MSW) burnt electric power generation, using five kinds of working fluid such as NH_3, C_5H_<12> and C_6H_6 at the bottoming cycle, which are different from water at the topping cycle. The performance characteristics of the two-fluid cycle are obtained and the optimum cycle conditions, which maximize the plant thermal efficiency, are determined for the respective working fluid. Further, the effects of the parameters such as the terminal temperature difference of the heat exchanger and superheating on the thermal efficiency are clarified. It is shown that the plant thermal efficiency was increased to 19.7% from 17.6% by the adoption of the two-fluid cycle using C_6H_6 as the working fluid and could be improved further by superheating the main vapor at the bottoming side and by preheating the feed-liquid using the bleeding vapor in the bottoming turbine.
社団法人日本機械学会の論文
1999-06-25