A dual combustion cycle has a maximum pressure of (65 bar) and maximum temperature of (1930C)....

 

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A dual combustion cycle has a maximum pressure of (65 bar) and maximum temperature of (1930°C). The compression ratio is 19:1 and the inlet conditions are 1 bar and 25°C. Assume that the air is modelled as an ideal gas. Given that y=1.4, cp= 1.005 kJ/kgk, cv=0.718 kJ/kgk and R= 0.287kJ/kgK. a) Sketch the cycle with a proper label on a P-v diagram b) Calculate the cut-off ratio c) Calculate the thermal efficiency d) Calculate the mean effective pressure, in MPa for the cycle. A dual combustion cycle has a maximum pressure of (65 bar) and maximum temperature of (1930°C). The compression ratio is 19:1 and the inlet conditions are 1 bar and 25°C. Assume that the air is modelled as an ideal gas. Given that y=1.4, cp= 1.005 kJ/kgk, cv=0.718 kJ/kgk and R= 0.287kJ/kgK. a) Sketch the cycle with a proper label on a P-v diagram b) Calculate the cut-off ratio c) Calculate the thermal efficiency d) Calculate the mean effective pressure, in MPa for the cycle.