Power and Efficiency of an Endoreversible Closed Intercooling Regenerated Brayton Cycle Coupled to Variable-temperature Heat Reservoirs

Finite time thermodynamics is applied to analyze the performance of an endoreversible closed intercooling regenerated Brayton cycle coupled to variable temperature heat reservoirs for the first time. The analytic formulae of the dimensionless power output and efficiency are deduced. The middle pressure ratio is optimized at the maximum dimensionless cycle power output and efficiency respectively. The effects of the effectiveness of intercooler, regenerator, hot and cold side heat exchangers, the cycle heat reservoir temperature ratio as well as intercooling and cold side heat reservoir temperature ratio on the performance of Brayton cycle are analyzed by detailed numerical examples.