Practice Vapor Compression Refrigeration Cycle (7) - Power and Refrigeration Cycles

Practice: Vapor Compression Refrigeration Cycle

Lesson 7Power and Refrigeration Cycles

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10 questions

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6 sample questions

Question 1.
List the four main components of the Vapor Compression Refrigeration Cycle.
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Remember the acronym C-C-E-E.
Question 2.
What does the Coefficient of Performance (COP) measure?
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Think about what happens with the heat and work.
3Question 3.
What is the correct order of processes in the Vapor Compression Refrigeration Cycle?
- Compression → Heat rejection → Throttling → Heat absorption
- Heat rejection → Throttling → Heat absorption → Compression
- Heat absorption → Compression → Heat rejection → Throttling
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Think about how each step leads to the next.
4Question 4.
True or False: The Coefficient of Performance (COP) must always be greater than 1.
- True
- False
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Consider the definitions of COP in practical scenarios.
Question 5.
If a compressor is rated at 3000 J work to compress refrigerant and the system absorbs 9000 J of heat, calculate the COP and discuss its efficiency.
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Use the COP formula to find efficiency.
Question 6.
Compare the environmental impact of R-22 vs. R-134a as refrigerants and justify the ideal choice for a new air conditioning system.
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Consider regulations and safety standards in your comparison.

6 more questions in this section. Enroll free to practise them all.