3.6. Selection of Better Refrigerants

Try these first

1. 1.

   What does COP stand for in refrigeration systems?

   Hint

   Recall the acronym for efficiency.

2. 2.

   Name one environmental impact consideration when selecting refrigerants.

   Hint

   Think about climate change effects.

3. 3.

   What is the purpose of selecting better refrigerants in VCR systems?

   • To increase efficiency and reduce environmental harm
   • To lower costs only
   • To optimize aesthetics of the system

   Hint

   Think about both performance and safety.

4. 4.

   True or False: Vapor superheating prevents liquid refrigerant from damaging the compressor.

   • True
   • False

   Hint

   Consider the role of superheating in compressor protection.

5. 5.

   Design a refrigeration system using a refrigerant of your choice. Discuss the benefits and drawbacks of your selected refrigerant concerning its COP and environmental impact.

   Hint

   Consider different industry requirements and how they influence your decision.

6. 6.

   Evaluate an existing refrigeration system and propose at least two methods of improvement using knowledge of refrigerants and performance techniques discussed. What metrics would you use to measure improvement?

   Hint

   Think about real-world impacts and the sustainability of each method.