S0801-1-6 CO_2回収型クローズドサイクルガスタービンシステムの性能検討(IGCC/CCS)

概要

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The performance of the closed-cycle AHAT (Advanced Humid Air Turbine) system was studied with simulation analysis of heat and material balance calculations. The study was performed in comparison between the closed-cycle and the open-cycle AHAT, under the various combinations of combustion temperature and pressure ratio. Thermal efficiency of the open-cycle increased with increasing combustion temperature; however, that of the closed-cycle was proved to be approximately constant, but also depended more on the pressure ratio. The difference was due to the major component of the exhaust gases, which was CO_2 in the closed-cycle, while N_2 in the open-cycle. As the specific heat ratio of CO_2 rich gas is smaller than that of N_2 rich gas, we conclude that the performance was strongly influenced by the specific heat ratio of the working fluid.
一般社団法人日本機械学会の論文
2010-09-04