Using EES (or other) software, study the effect of
Chapter 9, Problem 9175(choose chapter or problem)
Using EES (or other) software, study the effect of variable specific heats on the thermal efficiency of the ideal Otto cycle using air as the working fluid. At the beginning of the compression process, air is at 100 kPa and 300 K. Determine the percentage of error involved in using constant specific heat values at room temperature for the following combinations of compression ratios and maximum cycle temperatures: r 5 6, 8, 10, 12, and Tmax 5 1000, 1500, 2000, 2500 K.
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