Evaporator Functions and Superheat 211 QUESTIONS 1. What is the typical superhea

Question

Evaporator Functions and Superheat 211 QUESTIONS 1. What is the typical superheat for an evaporator operating under normal conditions? 1O 2. Why is it important to have superheat at the end 6. Where does the refrigerant go when it leaves the evaporatori of the evaporator? 7. The refrigerant in the evaporator must be (colder or warmer) than the air passing over it for heat to transfer into the coil. 3. What is the job of the evaporator in a refrigeration system 4. The refrigerant entering the evaporator is approxi- mately 96 liquid and % vapor 5. The refrigerant leaving the evaporator is--% vapor

Explanation / Answer

1. The typical superheat evaporator temperature is 30 degrees . super heat is the differnce betwween boiling point tempertaure of refrigerant in evaporator coil and actual temperature of refrigerent gas as it leaves out of evaporator.

2. superheat measureing is important as it can be used to prevent damage of air conditioning system. it ensures that no liquid enters the compressor .

3. Evaporator is placed in area where we want to be cooled. It consist of a fan which draws air from refrigerator and blows into evaporator coil. The refrigerent then absorb the heat from air and lowers the temperature and blow it back into refrigerator.

4. The refrigerent entering evaporator is approximately 75% liquid and 25% vapour.

5. It is only vapour .

6. As the liquid refrigerent travels through the evaporator coils it turns into a gaseous state as it absorbs the heat inside.

7. It should be colder. Then only heat transfer takes places.

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