Flooding Evaporator
A flooding evaporator is not boiling off enough of its refrigerant to prevent liquid from leaving the evaporator. Refrigerant that has not totally boiled off cannot pick up any sensible heat. A flooded system has no superheat. However, flooding is sometimes used to describe an evaporator that has a superheat much lower than normal.
EXAMPLE: A system with a normal superheat of 10°F is considered as flooding if its superheat is below 5°F.
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