A Diesel engine with a compression ratio of 16 has a cutoffratio of 1.5. The state before polytropic compression (exponent1.3) is 1700 cm3 , 96 kPa and 22°C and there is isentropicexpansion.
(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 or296 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
