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Question

Q6. With reference to refrigeration systems:

(a) Explain why undercooling of the refrigerant at the condenser outlet is desirable. (3)

(b) Describe, with the aid of a sketch, how a heat exchanger could be incorporated in the circuit to enhance undercooling. (5)

(c) Explain the possible consequences of the refrigerant having a dryness fraction at the compressor suction. (2)

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