Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
What is the refrigerant in an ammonia absorption system? |
Ammonia |
|
What’s the absorbent in an ammonia absorption system (ABS)? |
Aqua-ammonia |
|
What’s the pressure range of an ABS? |
Above atmospheric. |
|
What’s the refrigerant in a Lithium Bromide (LB) system? |
Water |
|
What’s the absorbent in an LB system? |
Lithium Bromide |
|
What’s the pressure range in an LB system? |
Below atmospheric |
|
What does the condenser do an an absorption system? |
Condenses vapor into liquid which can be used for cooling in the evaporator. |
|
What does the metering device do? |
Lowers the pressure and temperature of the liquid leaving the condenser. |
|
What does the evap do? |
Boils refrigerant for cooling |
|
What does the evap do? |
Boils refrigerant for cooling |
|
What does the absorber do? |
Removes vapor from the evaporator |
|
What does the strong liquor pump do? |
Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow |
|
What does the evap do? |
Boils refrigerant for cooling |
|
What does the generator do? |
Boils refrigerant out of solution |
|
What does the strong liquor pump do? |
Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow |
|
What does the generator do? |
Boils refrigerant out of solution |
|
What does the weak liquor regulating valve do? |
Regulates flow of weak solution back to absorber; pressure differential will cause fluid to flow into the absorber until the pressures are equal |
|
What does the evap do? |
Boils refrigerant for cooling |
|
What does the absorber do? |
Removes vapor from the evaporator |
|
What does the strong liquor pump do? |
Pumps strong liquor to generator, as the pressure differential will not allow fluid to flow |
|
What does the generator do? |
Boils refrigerant out of solution |
|
What does the weak liquor regulating valve do? |
Regulates flow of weak solution back to absorber; pressure differential will cause fluid to flow into the absorber until the pressures are equal |
|
Accessories: What does the heat exchanger do? |
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 |
|
Accessories: what does the analyzer in an ammonia system do? |
Drys the hydrous ammonia leaving the generator |
|
Accessories: what does the analyzer in an ammonia system do? |
Drys the hydrous ammonia leaving the generator |
|
Accessories: what does the rectifier do? |
Further dries the hydrous ammonia prior to entering the condenser |
|
Accessories: what does the analyzer in an ammonia system do? |
Drys the hydrous ammonia leaving the generator |
|
Accessories: what does the rectifier do? |
Further dries the hydrous ammonia prior to entering the condenser |
|
Accessories: what does the receiver do? |
Stores excess refrigerant for later usage. |