0
Refrigerant is superheated when leaving the evaporator so that the compressor is not getting liquid along with the gas, becauseÊliquid can cause damage the compressor.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What is a direct expansion evaporator?
Refrigerant enters a direct expansion evaporator as a saturated liquid vapor mix and leaves as a superheated vapor.
Dry expansion evaporator?
In dray expansion evaporator, the liquid refrigerant is generally fed by an expansion valve. the expansion valve controls the rate of flow of refrigerant to the evaporator. In the evaporator the liquid refrigerant is vaporized and superheated by the time it reaches to the end of evaporator. At inlet of the evaporator, the refrigerant is predominantly in the liquid form with a small amount of vapor formed as a result of flashing at the expansion valve. the liquid refrigerant passes through the evaporator, more and more refrigerant is vaporized by the load. according to the load, the liquid will come into evaporator and vaporize and reaches to superheat at the end of the evaporator. The inside of the evaporator is far from dry but wetted with liquid so named as dry expansion evaporator.
Where does the refrigerant go when it leaves the evaporator?
The evaporator
Why the air conditioners throw cool air?
Well, the air conditioning system draws the heat out of the passenger cabin, transfers the heat to the refrigerant, superheats the refrigerant, then rapidly transfers the heat from the superheated refrigerant to the ambient air which flows through the condenser fins. This removes heat from the refrigerant, causing it to cool rapidly and drastically, and that cool refrigerant returns to the evaporator, where the blower fan blows over the evaporator, blowing the cooled air into the passenger compartment.
What is chiller approach temperature?
Evaporator Approach is the difference between the evaporating refrigerant temperature - measured at the well in the evaporator -and leaving chilled water temperature.Take all readings with the water cooled chiller at full load.Condenser Approach is the difference between the liquid refrigerant temperature - as measured on the liquid line - and leaving condenser water temperature.
What is a chiller approach temperature?
Evaporator Approach is the difference between the evaporating refrigerant temperature - measured at the well in the evaporator -and leaving chilled water temperature.Take all readings with the water cooled chiller at full load.Condenser Approach is the difference between the liquid refrigerant temperature - as measured on the liquid line - and leaving condenser water temperature.
What trouble may be indicated by a warm evaporator line?
I'm just a student of HVACR and I think a lack of refrigerant will be indicated by a warm an evaporator or the outlet end of the evaporator.
What is the refrigerant entering the metering or expansion device of a refrigeration system?
superheated vapor
Where is the coldest point in a ac circuit?
the point where refrigerant evaporates in the evaporator. Generally the center of the evaporator.
What does the refrigerant do in the evaporator?
An evaporator in a refrigeration system works by passing warm air over it's coils.
What is the difference between the dry or direct expansion type of evaporator to the Flooded type evaporator?
Evaporator is said to be flooded type if liquid refrigerant covers the entire heat transfer surface. This type of evaporator uses a float type of expansion valve. An evaporator is called dry type when a portion of the evaporator is used for superheating the refrigerant vapour after its evaporation.
What happens to a refrigerant when it is above the saturation temperature?
it remains in a vapor state
