A constant volume fuel-air cycle of compression ratio of 7, operates on a hydrocarbon fuel of CsH17. The engine is running at 120% theoretical of air. The ambient condition is 1.01 bar and 30 °C. The...

A constant volume fuel-air cycle of compression ratio of 7, operates on a hydrocarbon fuel of CsH17. The engine is running at 120% theoretical of air. The ambient condition is 1.01 bar and 30 °C. The temperature and pressure before the exhaust valve opened are 5 bar and 1100 K respectively. Calculate the maximum temperature in the cycle, the thermal efficiency and mean effective pressure taking into account the following data: For reactants: M = 28.5 and Cp = 1.45 kJ/kg.K For products: M =30.5 and Cp = 1.15 kJ/kg.K LCV = 40000 kJ/kg, Tr= 20 °C and Cpr =1.8 kJ/kg.K.


Extracted text: A constant volume fuel-air cycle of compression ratio of 7, operates on a hydrocarbon fuel of C3H17. The engine is running at 120% theoretical of air. The ambient condition is 1.01 bar and 30 °C. The temperature and pressure before the exhaust valve opened are 5 bar and 1100 K respectively. Calculate the maximum temperature in the cycle, the thermal efficiency and mean effective pressure taking into account the following data: For reactants: M = 28.5 and Cp = 1.45 kJ/kg.K %3D For products: M = 30.5 and Cp 1.15 kJ/kg.K LCV = 40000 kJ/kg, Tr = 20 °C and Cpr =1.8 kJ/kg.K.