2004•Gas Turbine Experiment and ResearchRequires access

Efficiency Optimization for an Irreversible Closed Intercooled Regenerated Brayton Cycle

Fengrui Sun

Abstract

This paper applies finite time thermodynamics to optimize the intercooling pressure ratio and heat conductance distributions of hot/cold side heat exchangers, intercooler and regenerator of an irreversible intercooled regenerated Brayton cycle coupled to constant temperature heat reservoirs. The maximum thermal efficiency is obtained. Double maximum efficiency is achieved by further optimization of the total pressure ratio. The effects of some important parameters on the optimal results are investigated by detail numerical calculations.

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Available abstract

Key concepts: Intercooler, Brayton cycle, Regenerative heat exchanger, Heat exchanger, Overall pressure ratio, Thermodynamics, Materials science, Thermal efficiency