7. Summary Table: Comparison of Common Absorption Systems

Try these first

1. 1.

   What does VARS stand for?

   Hint

   Think about the type of refrigeration system.

2. 2.

   Name one absorbent used in VARS.

   Hint

   Recall the substances that absorb refrigerant vapor.

3. 3.

   What is the key advantage of VARS?

   • High-grade energy use
   • Low-grade thermal energy use
   • Mechanical compressor operation

   Hint

   Think about the energy sources used.

4. 4.

   True or False: The Water-Lithium Bromide system can achieve freezing temperatures.

   • True
   • False

   Hint

   Consider the limitations discussed in the examples.

5. 5.

   Design a Vapor Absorption Refrigeration System for a remote location using solar energy. Consider the selection of absorbents and refrigerants based on safety and efficiency criteria.

   Hint

   Think about the operational requirements and safety aspects.

6. 6.

   Evaluate the impact of using an analyzer and rectifier in a Water-Ammonia system. How would their inclusion enhance the system's reliability?

   Hint

   Consider the issues with water vapor in ammonia systems discussed throughout.