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In: Mechanical Engineering

Air within a piston-cylinder assembly execute an ideal Carnot power cycle within maximum and minimum temperatures...

Air within a piston-cylinder assembly execute an ideal Carnot power cycle within maximum and minimum temperatures of 600 K and 300 k, respectively. The heat added at the high temperature is 250 kJ/kg. The lowest pressure in the cycle is 75 kPa. Assuming the ideal gas model for the air (constant cv, cp, k, with the following properties: kair = 1.4, cv,air = 0.717 J/g.K, Mair = 28.97 g/mol, Universal Gas Constant 8.314 /( . ) _ R = J mol K ),

(a) Sketch the cycle on a p-V diagram;

(b) Determine the thermal efficiency of the cycle;

(c) Determine the specific volume and pressure after the heat rejection process;

(d) Determine the net work per unit mass of the cycle;

(e) Determine the work per unit mass in each of the adiabatic processes.

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Expert Solution

samet mamat answered 2 years ago
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