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Refrigerant-134a at 900 kPa and 30C is throttled to a temperature of -20C. (a) (b) (c) Identify the inlet and exit phases of the

 

Refrigerant-134a at 900 kPa and 30C is throttled to a temperature of -20C. (a) (b) (c) Identify the inlet and exit phases of the refrigerant-134a. Derive the energy balance for throttling valve. Calculate the internal energy (kJ/kg) of the refrigerant at the exit state. (5 marks) (6 marks) (5 marks)

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