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Heat Transfer, Refrigeration and Air Conditioning
In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
it considerably reduces mass of the system
it improves the C.O.P., as the condenser is small
the positive work in isentropic expansion of liquid is very small
it leads to significant cost reduction
Correct Answer:
the positive work in isentropic expansion of liquid is very small
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