Practice Analysis (1.2) - Vapour Compression & Refrigeration Systems

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10 questions

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6 sample questions

Question 1.
Define the term 'Coefficient of Performance'.
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What does COP compare?
Question 2.
What is isentropic compression?
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Think about heat transfer during compression.
3Question 3.
What does the Coefficient of Performance (COP) signify?
- Efficiency of heat transfer
- Efficiency of work done
- Efficiency of refrigeration
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Think about what COP compares in refrigeration.
4Question 4.
Isentropic compression involves heat exchange with surroundings?
- True
- False
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Recall the definition of isentropic.
Question 5.
Analyze how a leak in the compressor affects overall VCR performance.
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Consider the impacts of reduced refrigerant on the cycle.
Question 6.
Calculate the COP of a VCR system where the refrigeration effect is 800 W and the input work is 200 W.
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Use the formula for calculating COP.

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