Working of Refrigerators or freezers

Refrigerator is electric machine which is intended to provide cooling.Refrigeration is process of removing heat from enclosed space.It's all based on the following physics: - a liquid is rapidly vaporized (through compression) - the quickly expanding vapor requires kinetic energy and draws the energy needed from the immediate area - which loses energy and becomes cooler.

Main Parts Of Refrigerators :

1. Compressor
2 .Heat-exchanging pipes
3. Expansion valve
4. Heat-exchanging pipes
5. Refrigerant- the liquid

Working Of Refrigerators:

1. The compressor compresses the refrigerant gas used in the refrigerator. This compression increases the refrigerant’s temperature.

2. The outside coil or the heat exchanging pipes are then used to dissipate the heat of the refrigerant.

3. As the refrigerant become cool, it condenses into liquid form and flows through the expansion valve.

4. The liquid refrigerant is then allowed to move from a high-pressure zone to a low-pressure zone as it flows through the expansion valve. This makes the refrigerant expand and evaporate. The evaporation absorbs heat from refrigerant and turn the temperature down.

5. The heat exchanging pipes allows the refrigerant to absorb heat thus making the temperature inside the refrigerator drop. 

6. The cycle goes on and the refrigerator is able to keep things cold.

The whole cycle is shown below in image.

 Advertisement :

 eBay store ebay
 ebay.co.uk for UK 
 ebay.fr for france