Absorption Systems

Front 1

What is the refrigerant in an ammonia absorption system?

Back 1

Ammonia

Front 2

What’s the absorbent in an ammonia absorption system (ABS)?

Back 2

Aqua-ammonia

Front 3

What’s the pressure range of an ABS?

Back 3

Above atmospheric.

Front 4

What’s the refrigerant in a Lithium Bromide (LB) system?

Back 4

Water

Front 5

What’s the absorbent in an LB system?

Back 5

Lithium Bromide

Front 6

What’s the pressure range in an LB system?

Back 6

Below atmospheric

Front 7

What does the condenser do an an absorption system?

Back 7

Condenses vapor into liquid which can be used for cooling in the evaporator.

Front 8

What does the metering device do?

Back 8

Lowers the pressure and temperature of the liquid leaving the condenser.

Front 9

What does the evap do?

Back 9

Boils refrigerant for cooling

Front 10

What does the evap do?

Back 10

Boils refrigerant for cooling

Front 11

What does the absorber do?

Back 11

Removes vapor from the evaporator

Front 12

What does the strong liquor pump do?

Back 12

Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow

Front 13

What does the evap do?

Back 13

Boils refrigerant for cooling

Front 14

What does the generator do?

Back 14

Boils refrigerant out of solution

Front 15

What does the strong liquor pump do?

Back 15

Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow

Front 16

What does the generator do?

Back 16

Boils refrigerant out of solution

Front 17

What does the weak liquor regulating valve do?

Back 17

Regulates flow of weak solution back to absorber; pressure differential will cause fluid to flow into the absorber until the pressures are equal

Front 18

What does the evap do?

Back 18

Boils refrigerant for cooling

Front 19

What does the absorber do?

Back 19

Removes vapor from the evaporator

Front 20

What does the strong liquor pump do?

Back 20

Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow

Front 21

What does the generator do?

Back 21

Boils refrigerant out of solution

Front 22

What does the weak liquor regulating valve do?

Back 22

Regulates flow of weak solution back to absorber; pressure differential will cause fluid to flow into the absorber until the pressures are equal

Front 23

Accessories: What does the heat exchanger do?

Back 23

1. Sub-cools the weak liquor leaving the generator.

2. Preheats the strong liquor leaving the absorber, reducing the amount of steam needed in the generator

Front 24

Accessories: what does the analyzer in an ammonia system do?

Back 24

Drys the hydrous ammonia leaving the generator

Front 25

Accessories: what does the analyzer in an ammonia system do?

Back 25

Drys the hydrous ammonia leaving the generator

Front 26

Accessories: what does the rectifier do?

Back 26

Further dries the hydrous ammonia prior to entering the condenser

Front 27

Accessories: what does the analyzer in an ammonia system do?

Back 27

Drys the hydrous ammonia leaving the generator

Front 28

Accessories: what does the rectifier do?

Back 28

Further dries the hydrous ammonia prior to entering the condenser

Front 29

Accessories: what does the receiver do?

Back 29

Stores excess refrigerant for later usage.