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In: Mechanical Engineering

A Diesel engine with a compression ratio of 16 has a cutoff ratio of 1.5. The...

A Diesel engine with a compression ratio of 16 has a cutoff ratio of 1.5. The state before polytropic compression (exponent 1.3) is 1700 cm3 , 96 kPa and 22°C and there is isentropic expansion.

(a) Sketch the P-v diagram for this cycle.

(b) Calculate the heat transfer in and heat transfer out.

answer must be Qin = 657 J or 724 J or 866 J, Qout = 291 J or 296 J or

(c) Determine the thermal efficiency.

answer must be 56% or 59.1% or 64.1%

(d) Calculate the mean effective pressure

answer must be 230 kPa or 268 kPa

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Expert Solution

samet mamat answered 1 year ago
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