5. A 6-cylinder reciprocating engine operates on air-standard Diesel cycle, each cylinder having 115 mm bore and 125 mm stroke and a speed of 2000 rpm. The temperature and pressure at the beginning of...

Extracted text: 5. A 6-cylinder reciprocating engine operates on air-standard Diesel cycle, each cylinder having 115 mm bore and 125 mm stroke and a speed of 2000 rpm. The temperature and pressure at the beginning of compression stroke are 300 K and 100 kPa respectively and the maximum temperature permitted is 1650 K. The clearance volume is one-eighth of the stroke volume. Assume air as an ideal gas with Cp = 1.005 kJ/kg K and Cy = 0.718 kJ/kg K. Calculate: (c) The thermal efficiency (d) The power output from the engine.