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Q3. In a two-stage reciprocating air compressor, the LP suction pressure is 1.04 bar, the LP delivery and HP suction pressure is 8.32 bar and the HP delivery pressure is 24.1 bar. The LP suction temperature is 274 K and the HP suction temperature is 328 K.

The index. of compression and expansion is 1.26.

(a) Sketch the pressure volume diagram showing intercooling.

(b), Calculate EACH of the following:

(i) the indicated work per kg;

(fi) the heat removed in the intercooler per kg;

(iii) the isothermal efficiency.

Nate: C_p = 1.005 kJ/kgK and C_v = 0.718kJ/kgK