### During expansion 10 kj kg of heat is lost to the surrounding

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##### Reference no: EM131563802

In a turbine air expands from 5 bar, 520°C to 1 bar, 300°C. During expansion 10 kJ/kg of heat is lost to the surroundings which is at 0.98 bar, 20°C. Neglecting kinetic and potential energy changes, determine per kg of air:

(i) The decrease in availability;

(ii) The maximum work;

(iii) The irreversibility.

For air take: c p = 1.005 kJ/kg K ; h = c p T, where c p is constant.

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