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In: Mechanical Engineering

Consider a Carnot heat engine cycyle executed in a closed system (piston-cylinder device) using 0.01848695 kg...

Consider a Carnot heat engine cycyle executed in a closed system (piston-cylinder device) using 0.01848695 kg of stem as the working fluid. It is known that the maximum absolute temperature in the cycle is three times the minimum absolute temperature, and the net-work output of the cycle is 90 KJ assuming no kinetic and potential energy changes. If the steam changes from saturated vapor (state 3=h_g) to saturated liquid(state 4=h_f) during heat rejection (process3-4) determine

a) the thermal efficiency of this Carnot Cycle

b) the head addition during the process 1-2 (isothermal expansion)

c) the heat rejection during process 3-4 (isothermal compression)

d) the temperature of the steam during the heat rejection process.

(a hint: use energy balance equation, H=U+PV, and h_g -h_f = h_fg

Solutions

Expert Solution

samet mamat answered 2 years ago
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