Regeneration, Reheat, and Compression with

Chapter 9, Problem 68P

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Air enters the compressor of a regenerative gas turbine with a volumetric flow rate of \(3.2 \times 10^{5} \mathrm{\ ft}^{3} / \mathrm{min}\) at \(14.5 \mathrm{\ lbf} / \mathrm{in} .^{2}, \ 77^{\circ} \mathrm{F}\), and is compressed to \(60 \mathrm{\ lbf} / \mathrm{in} .^{2}\) The air then passes through the regenerator and exits at \(1120^{\circ} \mathrm{R}\). The temperature at the turbine inlet is \(1700^{\circ} \mathrm{R}\). The compressor and turbine each has an isentropic efficiency of 84%. Using an air-standard analysis, calculate

(a) the thermal efficiency of the cycle.

(b) the regenerator effectiveness.

(c) the net power output, in Btu/h.

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