Practice Limitations (4.4) - Vapor Absorption Systems - Refrigeration and Air Conditioning

Practice: Limitations

Lesson 4.4Vapor Absorption Systems

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10 questions

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6 sample questions

Question 1.
What is one limitation of the ammonia-water system?
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Think about what happens to water in vapor form.
Question 2.
Can the water-lithium bromide system achieve freezing temperatures?
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Consider what refrigerant is used.
3Question 3.
What is a major limitation of the ammonia-water absorption refrigeration system?
- It can operate at freezing temperatures.
- It suffers from water carryover.
- It does not need purification.
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Consider the interaction between the water and ammonia.
4Question 4.
True or False: Lithium bromide crystallization can occur if the concentration is too low.
- True
- False
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Think about what causes crystallization to happen.
Question 5.
A water-ammonia system needs to be design-optimized for a region where both hot and cold demands exist. Discuss the limitations that need to be addressed for efficient function in varying temperatures.
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Think about how temperature variations impact system design requirements.
Question 6.
You are tasked with developing a new absorption system using lithium bromide. Consider ways to mitigate crystallization issues while maximizing efficiency.
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Focus on managing temperature and concentration to prevent crystallization.

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