A FIVE-cylinder, two-stroke-cycle MAN S50ME - C8 marine diesel engine operates at 105 rpm with a brake
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Question:
A FIVE-cylinder, two-stroke-cycle MAN S50ME - C8 marine diesel engine operates at 105 rpm with a brake mean effective pressure of 24 bar (1 bar =100kPa). Each cylinder has a 50 cm bore and 205 cm stroke. Ambient conditions are 100 kPa and 25o C. bsfc is 170 g/kW-h and the calorific value of the fuel is 42700kJ/kg. If volumetric efficiency is 95% and Mechanical Efficiency is 90% .Find:
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(a) Cylinder displacement for each cylinder.
(b) Brake power,
(c) Total (for 5 cylinders) consumption of fuel in kg/s.
(d) Brake thermal efficiency
(e) Mass of air flow (kg/s) and A/F
(f) Indicated power and Indicated thermal efficiency
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