704 マイクロガスタービン・燃料電池複合システムのサイクル解析 : エクセルギーに基づく性能評価(マイクロガスタービンシステムの熱力学的特性)(OS.11 マイクロガスタービンと分散電源)

概要

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A micro gas turbine (μGT) combined with a solid oxide fuel cell (SOFC) is expected to achieve extremely high efficiency. The performance and feasibility of a 30kWμGT-SOFC hybrid system for small-scale distributed generation systems has been investigated. In addition, the cycle analysis of the μGT-SOFC hybrid system has also been carried out in terms of exergy for the development of more efficient systems. Each of the itemized exergy losses in subprocesses is quantitatively evaluated, and the effects of design parameters on the system performance are clarified. Compared to the conventional recuperated gas turbine cycle, large reduction of the exergy loss in the combustion process is a primary reason for the higher efficiency of the hybrid system. Moreover, significant design strategies are indicated; for example, improving the recuperator efficiency and decreasing the turbin inlet temperature simultaneously.
一般社団法人日本機械学会の論文
2001-03-09