by 1.What is the use of cooling tower in a process plant?
- To cool hot water for reuse in the heat exchanger
2.Name 4 important parts of a cooling tower.
- Splash bars
- Drift eliminators
- Fans
- Air intake louvers
3. What is meant by approach to the cooling tower?
- The temperature difference between the water leaving a cooling tower and the wet-bulb temperature of the air entering the tower.
4.What is meant by range of a cooling tower?
- the temperature difference between the hot and cold water in a cooling tower
5.What is meant by drift loss in a cooling tower. Name the part used to prevent drift loss in a cooling tower.
- Loss of water due to wind
- Drift eliminators
6.Write 2 differences between Forced draft fan & Induced draft fan in cooling tower
*Forced draft cooling tower:
- use fan to force the air
- have solid sides without louvers.
*Induced draft cooling tower
-use fan to pull the air
- Airflow in an induced-draft tower is slower than in a forced-draft tower
7.Identify the major heat transfer process in cooling tower..
- Evaporation
8.What is meant by an Atmospheric cooling tower?
- No fan (air velocity )
9.Write the range of wind velocity for the operation of Atmospheric cooling tower.
- 4.5 to 6.5 mph
10.What is meant by a Natural draft cooling tower?
- Natural density difference of air inside & out side(No fan )
11.Name the cooling tower which has large stack..
- Natural draft cooling tower
