Effects of Pressure Changes on a Gas Power Cycle

by Brendan Deuble

Submitted : Fall 2009

A gas power cycle with temperature dependent heat capacity was analyzed in this work. The objective was to find the net work per unit pass as a function of P2, and the heat added per unit pass as a function of P2. Since the problem does not provide temperature at point two, or point four, we must use calculus to solve for these two temperatures at different values of P2. T2 affects the work done by the compressor, and T4 affects the work done by the turbine. After calculating these two temperatures at various pressures of P2, it was found that as pressure increases the resulting net work increases as well. Likewise, as P2 increases, heat added per unit pass decreases.

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