Rework Problem 9.20 except that the compression ratio is a) 6 b) 8. Heat is added to
Question:
a) 6
b) 8.
Heat is added to the air in an Otto cycle in the amount of 500 Btu/lbm. The compression ratio for this engine is 10. Air enters the cycle at 14.7 psia and 65 8 F. Determine, using a cold-air analysis,
i) The temperature and pressure at the end of the combustion process
ii) The thermal efficiency of the cycle
iii) The work output of the cycle in ft-lbf
iv) The mean effective pressure
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Thermodynamics for Engineers
ISBN: ?978-1133112860
1st edition
Authors: Kenneth A. Kroos, Merle C. Potter
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