Question 5.7: A balloon with a 12 kg of refrigerant R134a in the saturated...
A balloon with a 12 kg of refrigerant R134a in the saturated vapor state at a pressure of 240 kPa, as shown in Figure 5.9, is expanded in a process, during which a total of 300 kJ of heat is transferred to the refrigerant. Take the source temperature of heat as 300 °C.
(a) Write the mass, energy, entropy, and exergy balance equations for this closed system and
(b) calculate the final state temperature, entropy generation, and exergy destruction. Take T_o = 25 °C.
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