蒸気冷却ガスタービンを用いた複合発電サイクルの性能評価(熱工学,内燃機関,動力など)

概要

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Closed circuit steam cooled gas turbines are drawing attention because of their efficiency compared with that of a conventional air cooled gas turbine. In the closed circuit steam cooled gas turbine, coolant steam is not discharged into the gas path, so dilution of the hot gas stream, rotor blade pumping loss and pressure loss due to mixing of coolant steam are drastically reduced. In this paper, combined cycle performance using closed circuit steam cooled gas turbine are analyzed. The evaluated parameters are bleed and return point of the coolant steam in the bottoming cycle and leakage, pressure loss, mass flow of the coolant steam. The result of this analysis is that the combined cycle efficiency reaches about 53.6% on the HHV bases.
一般社団法人日本機械学会の論文
2002-08-25