The compression ratio for a six cylinder, 4-stroke, Diesel engine is 15:1. The bore is 130 mm and stroke 150 mm. The indicated thermal efficiency is 0.41 and the A/F is 18.5. The lower heating value...

Extracted text: The compression ratio for a six cylinder, 4-stroke, Diesel engine is 15:1. The bore is 130 mm and stroke 150 mm. The indicated thermal efficiency is 0.41 and the A/F is 18.5. The lower heating value of the fuel is 44 MJ/kg. The volumetric eff. for engine is 0.9. The mechanical friction power for engine is equivalent to 12.5% of the indicated power. The engine operates at 900 rpm and the atmospheric pressure and temperature are 100 kPa absolute and 25 °C respectively. Take (k=1.4, specific heat at constant pressure = 1 kJ/kgK) Determine: a)Brake power for the engine. b) Brake specific fuel consumption. c) Brake thermal efficiency