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Q6. In an Ideal diesel cycle the pressure and temperature at the start of compression are 1.0 bar and 57°C respectively. The volume compression ratio is 16:1 and the heat energy added at constant pressure is 1250 kJ/kg.

(a) Sketch the cycle on Pressure-Volume and Temperature-specific entropy diagrams.

(b) Calculate EACH of the following:

(i) The cycle efficiency

(ii) The mean effective pressure.

Note: For air C_p = 1.005 kJ/kg K and g = 1.4