Refrigeration Flashcards
In the vapour compression cycle, what component does the compressor feed into?
The condenser
The boiling point of a liquid can be increased by?
Pressurizing it.
If a refrigerant was pressurized before entering the condenser this would?
Increase the condensing temperature.
Note: pressure increases equals condensing and boiling increasing.
Which method of refrigeration uses the absorption principle?
Lithium bromide.
Which type of system uses a low side receiver?
Liquid overfeed.
Liquid propane boils at?
-42c
Note:
Heating and refrigeration are bother the processes of moving heat.
Ab
In order to lower the freezing point of water, brine chiller systems add?
Calcium chloride.
The boiling point of liquid ammonia is?
-33c
What is the most commonly used refrigerant used at gas plants?
Propane
What is the most common refrigerant used in industrial applications?
Ammonia
As it condenses into a liquid, a vapour…
Rejects latent heat
What is the order of operation in the vapour compression cycle?
Expand, evaporate, compress, consend
When is the heat the greatest in the vapour compression cycle?
Immediately after the compressor.
The coldest water in a cooling tower will be found?
At the bottom of the cooling tower.
Counter flow.
