Ultra Micro Gas Turbine要素間の熱移動がガスタービン性能に及ぼす影響(<特集>マイクロガスタービンに関する周辺機器)

概要

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This paper has focused on the effects of the heat transfer between the components of Ultra Micro Gas Turbine (UMGT) on its performance, which are mostly ignored in conventional gas turbines. In order to investigate the effects, we calculated the unique gas turbine cycle that introduced the heat transfer from the combustion chamber to the compressor and turbine. The results showed that as the heat transfer both to the compressor and turbine increased, the thermal efficiency decreased monotonously, mainly due to a lowering of efficiencies of compressor and turbine, especially compressor efficiency was easier to lower. In addition, the heat transfer to the lower pressure regions of the compressor and turbine reduced the thermal efficiency more than to the higher pressure regions. We discussed the reason of these results thermodynamically.
社団法人日本ガスタービン学会の論文
2003-09-20