Condensers are heat exchangers that transfer heat from the refrigerant to the air. There are different types of condensers including round tube serpentine condensers, oval/flat tube serpentine condensers, and oval/flat tube parallel flow condensers. Flat tube condensers are more efficient. Serpentine condensers have refrigerant flowing back and forth through tubes, while parallel flow condensers have groups of parallel tubes with some carrying refrigerant left to right and others right to left. The purpose of the condenser is to change the refrigerant vapor to a liquid by decreasing its temperature and pressure.

1. 1
CONDENSERS

2. 2
Heat Exchangers
 Condensers have to move heat from the refrigerant to the air.
 Evaporators must move heat from air to the refrigerant.
 Both require a lot of contact area for both air and refrigerant.
 Both require free movement of air and refrigerant.

3. 3

4. 4
Condenser Types
Condensers A and C areCondensers A and C are
round tube, serpentineround tube, serpentine
condensers.condensers.
Condenser B is an oval/flatCondenser B is an oval/flat
tube, serpentine condenser.tube, serpentine condenser.
Condenser D is an oval/flatCondenser D is an oval/flat
tube, parallel flowtube, parallel flow
condenser.condenser.
Flat tube condensers areFlat tube condensers are
more efficient.more efficient.

5. 5
CONDENSERS

6. 6
Serpentine Condenser
Refrigerant flows from
the upper inlet to the
bottom outlet through
two tubes. These
tubes wind back and
forth though the
condenser.

7. 7
Parallel Flow Condenser
Refrigerant flows from the upper
inlet to the bottom outlet through
groups of parallel tubes. Some
carry refrigerant from the right to
the left, and others move it back to
the right.

8. 8
Condenser Types
Condensers A and C areCondensers A and C are
round tube, serpentineround tube, serpentine
condensers.condensers.
Condenser B is an oval/flatCondenser B is an oval/flat
tube, serpentine condenser.tube, serpentine condenser.
Condenser D is an oval/flatCondenser D is an oval/flat
tube, parallel flowtube, parallel flow
condenser.condenser.
Flat tube condensers areFlat tube condensers are
more efficient.more efficient.

9. 9
CONDENSERS

10. 10
CONDENSERS

11. 11
?

12. 12
 What is the purpose of the condenser?
 a. To change the refrigerant vapor
to a liquid.
 b. To change the refrigerant liquid
to a vapor.
 c. To increase the temperature and
pressure of the refrigerant vapor.
 d. To decrease temperature and
pressure of the refrigerant liquid

13. 13

14. 14
Side Air-Pressure Drop
 Simply put : How well the condenser will cool the
refrigerant
 Page, #129 of your book

15. 15
Internal Heat Exchanger
 Cooling Performance 12% Better
 Annual Fuel Consumption Improved 1%

16. 16
Internal Heat Exchanger
 Cooling Performance 12% Better
 Annual Fuel Consumption Improved 1%

17. 17
Internal Heat Exchanger
 Cooling Performance 12% Better
 Annual Fuel Consumption Improved 1%