1. HEAT EXCHANGER

2. * Heat exchanger used to transfer thermal energy from one medium to another for the purpose of cooling and heating.*

3. *Types of heat exchangers
-Air Cooled
-Double Pipe
-Spiral Plate and Tube
-Shell and Tube

4. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact.
They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment.
One common example of a heat exchanger is the radiator in a car, in which the heat source, being a hot engine-cooling fluid, water, transfers heat to air flowing through the radiator.

5. One common example of a heat exchanger is the radiator in a car, in which the heat source, being a hot engine-cooling fluid, water, transfers heat to air flowing through the radiator.

6. Hot coolant enter the tubes
Heat from the coolant is transferred from the coolant to the tubes.
Heat is then transferred from the tubes to the fins.
Heat finally transferred from the fins to the surrounding air.
Cold coolant exits the tubes.

7. Radiator Diagram

8. Condenser

9. Process Condenser -condense refrigerant vapour to liquid Fan
Compressor
-raise the pressure and move it along
Fan
- Blowing outside air through the heat exchanger section to cool the refrigerant inside