Question

Consider the following statements regarding refrigerant absorbent used in vapor absorption refrigeration system:
1. Water Lithium bromide systems are used for refrigeration applications above $0^{o}C$ only.
2. Ammonia-water systems can be used for refrigeration application below $0^{o}C$.
3. Small ammonia water system is used in domestic refrigerators
4. Small water lithium bromide systems are used in room air conditioners.

• A. $1$ and $2$ only
• B. $1$ and $3$ only
• C. $2$ and $4$ only
• D. $3$ and $4$

Answer 1

The correct option is B $1$ and $3$ only

In VARS systems using water -LiBr pair are extensively used in large capacity air conditioning. It is used only in applications requiring refrigeration at temperature above $0^{o}C$. Since water is used as refrigerant.