What is the refrigerant used in a Lithium Bromide/Water air conditioning system?

Prepare for the Refrigeration and Air Conditioning Mechanics (313A) Test. Study with flashcards and multiple choice questions, hints and explanations included. Ace your exam!

In a Lithium Bromide/Water air conditioning system, water (H2O) is utilized as the refrigerant. This type of system is known as an absorption refrigeration system, where Lithium Bromide serves as the absorbent, while water acts as the refrigerant that evaporates to provide cooling.

The process involves the absorption of water vapor by the Lithium Bromide solution, which is then heated to regenerate the refrigerant. Unlike mechanical compression systems that use gases like R-22, ammonia, or carbon dioxide, the Lithium Bromide/Water system relies on the unique properties of water and its ability to change states efficiently at the operating conditions found in this type of application. This makes it suitable for larger scale cooling applications, such as commercial buildings, where these types of systems can be highly effective.

Thus, water is the appropriate and correct choice for the refrigerant in this specific system configuration.

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