A Study on Suction-Cooling Gas Turbine Cycle with Turbo-Refrigerating Machine using the Bleed Air

概要

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In this paper, a new cycle concept is presented, that is, the suction cooling gas turbine cycle using the bleed air has been devised in order to improve the part-load performance characteristics of gas turbine. Then, the analysis of this cycle has been made thermodynamically from both the design point and the part-load performance. The results of analysis have revealed: (1) at the design point this cycle gives little advantages in both thermal efficiency and specific power for the given conditions over the conventional cycle. (2) The part-load thermal efficiency can be highly improved in the constant speed operation for the fixed turbine inlet temperature owing to application of the higher value of an air bleed rate.
一般社団法人日本機械学会の論文