Preperation And Conditioning Of Compressed Air

Question 1

Where is an inter cooler usually located?

Answer 1

Between the stages of a multi-stage compressor

Question 2

How does an inter cooler operate?

Answer 2

Finned tube and ambient air is blown over to promote heat dissipation

Question 3

What does a lower compressed air temperature mean?

Answer 3

Less water vapour will be held

Question 4

How much does an inter cooler cool the air?

Answer 4

By 15 degrees

Question 5

Where is an after cooler fitted?

Answer 5

After the compressor delivery outlet and before the receiver

Question 6

What is the aftercoolers purpose?

Answer 6

Reduce the amount of water vapour in the air by reducing the temperature

Fitted with a drain unit to remove the water

Question 7

What are the three methods of air drying

Answer 7

Absorption
Adsorption
Refrigeration

Question 8

How does absorption drying work?

Answer 8

Passing air through a tank filled with moisture absorption agent

Needs to be replaced

Least expensive and least convenient

Question 9

How does refrigeration cooling work?

Answer 9

Air is passed over the evaporator of a refrigeration unit where it is cooled below its DEW POINT so it cannot hold moisture

Question 10

How does adsorption drying work?

Answer 10

Uses a drying agent that can be reused

Best results but most expensive