What is the function of cooling tower in refrigeration system?
What is the purpose of a Cooling Tower? A cooling tower is used to cool water and is a huge heat exchanger, expelling building heat into the atmosphere and returning colder water to the chiller. A cooling tower receives warm water from a chiller.
What is a cooling tower and how does it work?
Cooling tower systems work by using water to extract waste heat from a system and ejecting it into the atmosphere primarily through evaporation. The three key components of a cooling system are the cooling tower, recirculating pump, and heat exchanger. Water first passes through a heat exchanger where it absorbs heat.
What is use of cooling tower Mcq?
Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature. The heat removed by the cooling tower is the difference between the temperature of the water leaving the cooling tower and the ambient wet-bulb temperature of the air.
What is approach temperature in cooling tower?
Approach is the temperature of the water leaving the cooling tower (in this case, 85°F nominal) minus the ambient web bulb temperature (78°F wet bulb) or 7°F. This value represents how close the cooling tower gets the water to the wet bulb temperature of the surrounding air.
Which has maximum effect on cooling tower performance?
Explanation: The mechanical draft cooling towers are smaller in size than that of the natural draft cooling towers with the same capacity due to the fact that a large volume of forced air increases the cooling capacity.
What is bleed off in cooling tower?
Cooling tower bleed-off/blowdown occurs periodically throughout the day to remove high concentrations of mineralized water from the tower due to evaporation. Scale formation occurs if the concentration of minerals in a cooling tower increases to a level higher than the saturation point of the system water.
What causes cooling tower drift?
Cooling tower drift are small water droplets that are emitted from cooling towers. As air moves up the tower, it entrains a fraction of the sprayed water droplets outside of tower and into the ambient.