A 4-stroke, 5 cylinder engine produces a brake load of 5.6 kN with a torque arm of 80 cm. The engine runs at 480 rpm. The bore and the stroke are 250 mm and 320 mm respectively. Calculate, the engine...

Extracted text: A 4-stroke, 5 cylinder engine produces a brake load of 5.6 kN with a torque arm of 80 cm. The engine runs at 480 rpm. The bore and the stroke are 250 mm and 320 mm respectively. Calculate, the engine brake the brake mean effective pressure if the specific fuel consumption is 0.230 kg/kW.hr and the lower calorific value of the fuel is 43,200 kJ/kg, calculate the brake thermal efficiency; if the volumetric air-fuel ratio is 24.5/1 and the free air pressure and the temperature are 1.013 bar and 27°C respectively, calculate the volumetric efficiency of the engine. i. power; ii. ii. iv.