GATE ME 2018 Set 2 — Question 53
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Thermodynamics → Refrigeration & Air Conditioning → Vapour Compression Cycle
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Question
A standard vapor compression refrigeration cycle operating with a condensing temperature of and an evaporating temperature of develops of cooling. The diagram shows the enthalpies at various states. If the isentropic efficiency of the compressor is , the magnitude of compressor power (in ) is _________ (correct to two decimal places).
Correct answer
9.5 to 10.5
Solution
1.From the given diagram, we identify the enthalpies at key states:
- Compressor inlet (State 1):
- Isentropic compressor outlet (State 2s):
- Condenser outlet / Evaporator inlet (State 3 and 4):
3.The isentropic compressor power is:
4.The actual compressor power () considering the isentropic efficiency () is:
The magnitude of compressor power is .Continue learning with Success Tracker
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