What is the function of the concentrator (generator)?

What is the function of the concentrator (generator)?

a) To cool the refrigerant vapour
b) To increase the absorbency potential of used Lithium Bromide
c) To speed up the evaporation of the refrigerant
d) To cool the concentrated absorbent
e) To exchange heat between the high temperature refrigerant vapour and the atmosphere







Answer: B

In comparing absorption and compression refrigeration systems, which of the following comparisons is true?

In comparing absorption and compression refrigeration systems, which of the following comparisons is true?

a. Slugs of liquid carried over from the evaporator do not damage the compression system but can ruin an absorption system
b. Absorption systems require less space than compression systems
c. Cooling water requirements are larger for an absorption system than for a compression system
d. More equipment and piping are required for a compression system
e. Pumps in absorption systems require more electrical power








Answer: C

In order to lower the boiling point of the refrigerant in the lithium bromide refrigeration system it is important that the system maintain

In order to lower the boiling point of the refrigerant in the lithium bromide refrigeration system it is important that the system maintain

a. An extremely high vacuum
b. Very high pressure
c. Very low temperatures
d. Very fast refrigerant flow
e. High absorbent circulation








Answer: A

The absorber in the lithium bromide refrigeration system is equipped with a pump

The absorber in the lithium bromide refrigeration system is equipped with a pump

a. To force water into a finely divided state
b. To decrease contact between absorbent and refrigerant
c. To decrease the refrigerant evaporation point
d. To speed the absorption of water vapour
e. To keep the cycle pressure constant







Answer: D