Practice Working And Components (2.1) - Vapour Compression & Refrigeration Systems

Practice: Working and Components

Lesson 2.1Vapour Compression & Refrigeration Systems

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9 questions

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4 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are the four main components of a Standard VCR system?
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Remember the acronym C-C-E-E.
Question 2.
What does COP stand for?
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It measures the efficiency of refrigeration.
3Question 3.
What is the function of the compressor in a VCR system?
- It absorbs heat
- It releases heat
- It raises pressure and temperature of refrigerant
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Think about the role of pressure in the refrigeration cycle.
4Question 4.
The use of superheating in a VCR system is mainly to:
- Prevent liquid refrigerant entry into the compressor
- Increase the volume of the refrigerant
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Focus on the consequences of having liquid in the compressor.
Question 5.
Design a refrigeration cycle using real-world parameters assuming a COP of 2.5. Calculate the work input if the refrigeration effect required is 10 kW.
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Use the basic COP formula to find the solution.
Question 6.
Analyze how increasing ambient temperature affects the performance of a VCR system. Discuss the implications for COP and efficiency.
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Consider how heat transfer principles apply in different temperature scenarios.

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