Difference between Flooded type evaporator and dry expansion type evaporator

Difference between Flooded type evaporator and dry expansion type evaporator:

Flooded Type Evaporator:

• The rate of heat transfer is more in flooded type evaporator than dry type.
• Flooded type evaporator has a complex design.
• The size of the flooded evaporator is larger than dry type.
• It required more space to install this evaporator.
• It required more liquid refrigerant than dry type evaporator.
• With the help of a float chamber, the liquid refrigerant is supplied into the drum of an evaporator.
• Flooded type evaporator is used for high capacity systems.

Dry Expansion Type Evaporator:

• The rate of heat transfer is less in dry type evaporator compared to flooded type evaporator.
• Dry type evaporator is easy to design.
• It required less space than flooded type to install.
• It required less liquid refrigerant comparatively to the flooded type evaporator.
•  Using a capillary tube controls the supply of liquid refrigerant.
• This evaporator is used for less capacity systems.

Also read: Flooded Type Evaporator working and parts.