The purpose of this analysis is to predict the thermodynamic and design effects of a constant volume recuperator in a Brayton cycle. First Law and Second Law energy efficiencies were computed. Constant volume recuperators produce higher pressure, denser air for admission into the combustion chamber and turbine. Greater pressure and density in the combustion chamber results in higher fuel evaporation and combustion rates. The higher system pressure across the turbine also generates a slightly higher turbine efficiency. Furthermore, the increased density permits a smaller turbine in the first, hottest and most expensive stages. A novel constant volume, constant flow recuperator is described.

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