Heat is added to the air in an Otto cycle in the amount of 500 Btu/lbm. The

Question:

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