compression of an air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 1950 K.   Determine the compression ratio.

An ideal diesel cycle powered by air has a compression ratio of 20. At the beginning of the compression process, the pressure of the air is 100 kPa, the temperature is 20°C, and it is desired that the highest temperature of the cycle should not exceed 2250 K. Show the cycle in the P-v diagram. Assume the specific heats are constant at room temperature.  k=1.4 CP=1.005kJ/kgK CV=0.718 kJ/kgK R=0.287kJ/kgK a) Calculate the heat entering and leaving the cycle, the thermal efficiency of the cycle, b) Calculate the average effective pressure of the cycle.

The max temperature of an Otto cycle working under air standard conditions is 8000 degrees Celsius. Determine the compression ratio of the cycle if the heat injected in each cycle is 350kJ/kg.

The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 80 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 6821 kPa and the temperature is 2150 K. (a) Determine the compression ratio. r = (b) Cutoff Ratio (c) Thermal Efficiency (d) Mean Effective Pressure