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Homework A spark ignition engine of a compression ratio of 8 , operates with stoichiometric fuel-air ratio of hydrocarbon fuel of C3H18. The pressure and

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Homework A spark ignition engine of a compression ratio of 8 , operates with stoichiometric fuel-air ratio of hydrocarbon fuel of C3H18. The pressure and temperature inside the cylinder at the start of compression are 1 atmosphere and 350 K respectively. Find the temperature and pressure per unit mass of air at the end of compression stroke. Also find the maximum temperature and pressure in the cycle assuming residual gas fraction is 0.08 and the exhaust temperature is 1800 K. ( note LCV= 44300 kJ/kg and Cpf = 1.979 kJ/kg.K

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