The pressure-specific volume diagram of the air-standard
Chapter 9, Problem 9.17(choose chapter or problem)
The pressure-specific volume diagram of the air-standard Lenoir cycle is shown in Fig. P9.17. The cycle consists of constant-volume heat addition, isentropic expansion, and constant-pressure compression. For the cycle, \(p_{1}=14.7 \mathrm{lbf} / \mathrm{in} .^{2}\) and \(T_{1}=540^{\circ} \mathrm{R}\). The mass of air is \(4.24 \times 10^{-3} \mathrm{lb}\), and the maximum cycle temperature is \(1600^{\circ} \mathrm{R}\). Assuming \(c_{v}=\) \(0.171 \mathrm{Btu} / \mathrm{lb} \cdot{ }^{\circ} \mathrm{R}\), determine for the cycle
(a) the net work, in Btu.
(b) the thermal efficiency.
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