Refrigeration Flashcards

1
Q

In the vapour compression cycle, what component does the compressor feed into?

A

The condenser

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The boiling point of a liquid can be increased by?

A

Pressurizing it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

If a refrigerant was pressurized before entering the condenser this would?

A

Increase the condensing temperature.

Note: pressure increases equals condensing and boiling increasing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which method of refrigeration uses the absorption principle?

A

Lithium bromide.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which type of system uses a low side receiver?

A

Liquid overfeed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Liquid propane boils at?

A

-42c

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Note:

Heating and refrigeration are bother the processes of moving heat.

A

Ab

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

In order to lower the freezing point of water, brine chiller systems add?

A

Calcium chloride.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The boiling point of liquid ammonia is?

A

-33c

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the most commonly used refrigerant used at gas plants?

A

Propane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the most common refrigerant used in industrial applications?

A

Ammonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

As it condenses into a liquid, a vapour…

A

Rejects latent heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the order of operation in the vapour compression cycle?

A

Expand, evaporate, compress, consend

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When is the heat the greatest in the vapour compression cycle?

A

Immediately after the compressor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The coldest water in a cooling tower will be found?

A

At the bottom of the cooling tower.

Counter flow.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A low flooded evaporator system must be equipped with a?

A

Surge tank

17
Q

The greatest amount if heat is absorbed by the refrigerant in the?

A

Evaporator

18
Q

A centrifugal chiller system can be subject to?

A

Surging.

19
Q

Later can be defined as?

A

Heat that can be measured

Heat needed to bring water to a boiling point

Heat needed to keep water boiling

Heat removed from the water after it boils

20
Q

If the system had a sight glass to check for bubbles in the liquid refrigerant where would it be placed?

A

After the condenser