Sunday, August 05, 2018

Refrigeration mechanism

The purpose of a refrigerator is the removal of heat, called the cooling load, from a low-temperature medium. Refrigeration can be defined as a process that removes heat.

The refrigeration cycle is a process that simply removes heat from an area that is not wanted and transfers that heat to an area that makes no difference.

There are five basic components of a refrigeration system, these are:
*Evaporator: to remove unwanted heat from the product, via the liquid refrigerant
*Compressor: is considered the heart of the refrigeration system. The function is to draw the low-temperature, low-pressure vapour from the evaporator via the suction line
*Condenser: to extract heat from the refrigerant to the outside air. As the gas moves through the condenser, it begins to give up heat to the surrounding air which causes a drop in gas temperature. The gas keeps cooling off until it reaches the proper condensing temperature and the change of state takes place.
*Expansion Valve: The valve reduces the pressure of the refrigerant as it passes through the orifice
*Refrigerant: to conduct the heat from the product

In order for the refrigeration cycle to operate successfully each component must be present within the refrigeration system.
Refrigeration mechanism
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