period three

Evaporators

notes

Refrigeration

System Components

period three

Evaporators

Figure 23

The second major component to be discussed is the evaporator. The evaporator is a heat exchanger that transfers heat from air, water, or some other fluid to the cool liquid refrigerant.

Two common types of evaporators are the finned-tube and the shell-and-tube.

Finned-Tube Evaporator

liquid/vapor refrigerant

airflow

refrigerant vapor

Figure 24

Finned-Tube Evaporators

A finned-tube evaporator includes rows of tubes passing through sheets of formed fins. Cool, liquid refrigerant flows through the tubes, cooling the tube and fin surfaces. As air passes through the coil and comes into contact with the cold fin surfaces, heat is transferred from the air to the refrigerant. This heat transfer causes the refrigerant to boil and leave the evaporator as vapor.

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TRG-TRC005-EN

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Image 23
Trane trg-trc005-en manual Finned-Tube Evaporators

trg-trc005-en specifications

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