Practice Positive Displacement Compressors (1.1) - Components of Refrigeration Systems

Practice: Positive Displacement Compressors

Lesson 1.1Components of Refrigeration Systems

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9 questions

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6 sample questions

Question 1.
What is a positive displacement compressor?
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Think about how they handle refrigerant.
Question 2.
Name a type of reciprocating compressor.
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Recall the compressor types discussed.
3Question 3.
Which type of compressor uses a piston-cylinder mechanism?
- Rotary
- Centrifugal
- Reciprocating
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Recall the different mechanisms we discussed.
4Question 4.
True or False: Rotary compressors are more complex and have more moving parts than reciprocating compressors.
- True
- False
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Think about the design and complexity of each type.
Question 5.
An HVAC engineer must choose between a reciprocating and a rotary compressor. What factors should influence their decision, and why?
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Consider the environments where these compressors thrive.
Question 6.
Calculate the pressure ratio achieved by a reciprocating compressor that extracts vapor from a system at 5 psi and discharges it at 25 psi. Is this within typical limits for reciprocating compressors?
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Think about how pressure ratios relate to compressor performance.

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