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6. Two and one-half pounds of air actuate a cycle composed of the following processes; polytropic compression 1-2, with n 1.5, constant pressure 2-3;
6. Two and one-half pounds of air actuate a cycle composed of the following processes; polytropic compression 1-2, with n 1.5, constant pressure 2-3; constant volume 3-1. The known data are pi 20 psia, T-100F, QR-1682 Btu. Determine (a) T2 and T. (b) the work of the cycle using the pV plane, in Btu; (c) QA (d) the thermal efficiency, and (e) pm Ans. (a) 1120R, 4485R; (b) 384.4 Btu; (c) 2067 Btu; (d) 18.60 % ; (e) 106.8 psi
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QR T T3 13 R 3 1774 12 P 20 psi 137895 kra T 100 T V W 12 310928 k QR 1682 B...
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Thermodynamics An Engineering Approach
Authors: Yunus A. Cengel, Michael A. Boles
8th edition
73398179, 978-0073398174
