Q-4 An air standard Diesel cycle that has acompression ratio of 18 and the cut off ratio of 2.1. At the beginning of the compression Process, the temperature, pressure and volume are 300k, lookpa and 0.005m³ respectively. Calculate ①maximum pressure The temperature at the end of adiabatic expansion 3 work mean effective pressure. For air take Cp = 1.0035 kj/kg.k and R = 0.287 Ki/kg k done

A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure& temperature is found to be 14.7psi & 546R. The axial flow compressor provides apressure ratio of 14 to 1. Temperature at the turbine inlet is 2000R. The mass flowrate of airinside the engine is 133 lbm/s. Determine the following:a. T-S diagramb. Pressure & temperature at each statec. Thrust force (lbf)d. Propulsive power developed (BTU/min)e. Propulsive Efficiency

Consider an air standard Diesel cycle. At the beginning of compression, the temperature is 300 K and the pressure is 101.35 kPa. If the compression ratio is 15 and during the process 1860 kJ/kg of air as added as heat, calculate the following: The maximum cycle pressure a. 3726 kPa b. 1109 kPa The maximum cycle temperature a. 1680 K b. 2740 K The thermal efficiency of the cycle a. 55% b. 50% .The MEP a. 2600 kPa b. 800 kPa c. 5890 kPa d. 4495 kPa c. 60% d. 45% c. 3300 K d. 4050 K c. 1300 kPa d. 2900 kPa

5. An ideal diesel cycle has a compression ratio of 16 to 1. The maximum cycle temperature is1700°C and the minimum cycle temperature is 15°C. Calculate:a. the specific heat transfers to the cycleb. the specific work of the cyclec. the thermal efficiency of the cycle