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Q4/ A/ 1- list the advantages of multistage vapour compression cycle over simple vapor compression cycle. Draw p-h diagram to explanation. 2- Discuss effect of (suction pressure , superheating and condenser temperature) on vapor compression system performance. B/ A refrigeration system is used to cool a space at 5C using outdoor air at 35C to reject heat. The temperature difference at condenser and evaporator is 8 K. The refrigerant is R134a Find i. Carnot Coefficient Of Performance for the process. ii. Carnot Coefficient Of Performance for the refrigeration cycle iii. ideal vapor compression cycle COP