3.5. Reduction of Irreversibility

Try these first

1. 1.

   What does COP stand for?

   Hint

   It's a measure of efficiency.

2. 2.

   What is subcooling?

   Hint

   Think about lowering temperature before a phase change.

3. 3.

   What does COP stand for?

   • Coefficient of Performance
   • Cooling of Performance
   • Capacity of Performance

   Hint

   It's essential for measuring refrigerant system efficiency.

4. 4.

   True or False: Superheating is always beneficial to a refrigeration system.

   • True
   • False

   Hint

   Think about the balance in heating before compression.

5. 5.

   A refrigeration system operates at a COP of 3. If the work input is 200 W, what is the cooling effect it generates?

   Hint

   Coping with COP! Use the formula.

6. 6.

   Discuss the environmental implications of using high-GWP refrigerants compared to low-GWP alternatives in terms of efficiency and COP.

   Hint

   Think about the choices and their long-lasting effects!