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Q4. In an air standard diesel cycle the volume compression ratio is 18:1 and the volume cut off ratio is 1.8:1. The minimum pressure and temperature are 0.95 bar and 303 K respectively.

(a) Sketch the cycle on a T-s diagram.

(b) Calculate EACH of the following:

(i) The temperatures and pressures at the cardinal points in the cycle

(ii) The thermal efficiency

(iii) The mean effective pressure.

Note: For air γ = 1.4 and C_p = 1.005 kJ/kgK