The document describes the main components and working of a refrigeration system. The key components are the compressor, condenser, strainer, expansion valve, and evaporator. The compressor increases the pressure and temperature of the refrigerant, the condenser rejects heat and turns the refrigerant into a liquid, the strainer filters impurities, the expansion valve decreases the pressure and temperature as it expands the refrigerant, and the evaporator absorbs heat and turns the refrigerant back into a vapor before returning it to the compressor to repeat the cycle.

1. BY
Er. R.P. Ojha
R.P. Sir 1

2. condenser
Strainer
or filter Pressure type
tape
Capillary Tube
Evaporator

3. components
• Compressor – compress low pressure refrigerant
into high pressure and high temperature
• Condenser – refrigerant rejects heat, vapours
converted into liquid
• Strainer – to filter impurities from the refrigerant
• Expansion valve – refrigerant expands to low
pressure and low temperature
• Evaporator – refrigerant absorbs heat from water

4. Working
• Refrigerant flows
• Evaporator compressor Condenser
Expansion valve
Compressor – work supplied, P,T increased
Condensor – Heat rejected, vapour change into liquid
Expansion valve – refrigerant expands, P, T reduced
Evaporator – heat absobed , v
Liquid changed into vapour