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Consider a Carnot cycle executed in a closed system with air as the working fluid. The maximum pressure in the cycle is 730 kPa while the maximum temperature is 750 K. If the entropy increase during the isothermal heat rejection process is 0.31 kJ/kg K and the net work output is 114 kJ/kg, determine
A) the minimum pressure in the cycle
B) the heat rejection from the cycle
C) the thermal efficiency of the cycle
D) If an actual heat engine operates between the same temperature limits and produces 5700 kW of power for an air flow rate of 93.1 kg/s, determine the second law efficiency of this cycle.
Calculate the adiabatic flame temperature attained when methane at 298k, is combusted (a) with oxygen in the molar ratio air/CH4 = 9.524. Assume that CO2 and H2O are the products of the combustion. The adiabatic flame temperature is that temperature ..
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