Inside a Refrigeration System

 

What goes into making a refrigeration system?

A cooling system whether it is used for refrigeration (cooling, freezing), air conditioning or heat pumps is made up of three components to make up a cooling circuit (see our pages on How A Fridge Works here for more).  Installers have to select the right component for the system and Service and maintenance engineers have to check the correct operation and replace components if they go wrong.

In this section, we look at examples from manufacturers showing how those components work and what options are available

 

(animation provided by permission of Danfoss) 

 

Click on the component below to see examples:

This section uses some external links to explain how components work.

Compressor
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The motor that pumps the refrigerant around the system. You can look at some examples of different types of compressor in action here:

Rotary twin screw compressors
Scroll compressors
Reciprocating compressors
Turbocor compressors
Centrifugal Compressors - Chillers - The Engineering Mindset

The motor that pumps the refrigerant around the system. You can look at some examples of different types of compressor in action here:

Rotary twin screw compressors

Scroll compressors

Reciprocating compressor

Turbocor compressors

Centrifugal Compressors - Chillers - The Engineering Mindset
Condenser
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Expansion Valves
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This controls the lowering of pressure as refrigerant turns back into a vapour.

Thermal Expansion Valves - The Engineering Mindset

Electronic Expansion Valves - The Engineering Mindset

This controls the lowering of pressure as refrigerant turns back into a vapour.

Thermal Expansion Valves - The Engineering Mindset

Electronic Expansion Valves - The Engineering Mindset
Evaporator
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Refrigerant enters the evaporator as a low temperature liquid at low pressure, and the evaporator’s fins absorb heat from the space into the refrigerant.

What's the function of an Evaporator in a Refrigeration System? Watch Full Video.

Chiller Evaporators Explained - The Engineering Mindset

Evaporator control in industrial systems

Industrial Heat Exchangers - The Engineering Mindset

Refrigerant enters the evaporator as a low temperature liquid at low pressure, and the evaporator’s fins absorb heat from the space into the refrigerant.

What's the function of an Evaporator in a Refrigeration System? Watch Full Video.

Chiller Evaporators Explained - The Engineering Mindset

Evaporator control in industrial systems

Industrial Heat Exchangers - The Engineering Mindset

 

 

 

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