Refrigeration Equipment:

Refrigeration systems contain many equipment like, condenser, compressor, evaporator, expansion devices etc. A refrigerant compressor is a machine utilized to compress the refrigerant from the evaporator & to move up its pressure so that the equivalent temperature is remain higher than that of the cooling medium. The condenser is vital apparatus utilized in the high pressure side of a refrigeration system. Its reason is to remove heat of the hot vapour refrigerant discharged from the compressor. The evaporator is utilized in the low pressure side of a refrigeration system. The liquid refrigerant through the expansion apparatus enters into the evaporator where it boils & converts into vapour. The function of an evaporator is to absorb heat from the nearby location or medium that is to be cooled, via refrigerant. The temperature of the boiling refrigerant in the evaporator ought to always be less than that of the nearby medium so that the heat passes to the refrigerant. The expansion apparatus which is also known as throttling device, divides the high pressure side & the low pressure side of a refrigeration system. This is connected among the receiver and the evaporator.

Objectives

After studying this unit, you should be able to

• describe several types of compressor,
• describe several types of condenser,
• describe several types of evaporator, and
• Describe several types of expansion device.

Refrigeration system consists of different kinds of equipments. Individual knowledge of the equipments is needed to understand the refrigeration system. The fundamental principle of the refrigerant equipments & the classification of those equipments are described here.