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About Cooling Tower

Principle of Cooling Towers

The water is an effective heat transfer medium and this is taken advantage of industrial water cooling towers. The heat received by the circulating water from various kinds of process equipments is dissipated in the cooling tower for being recirculated.

The cooling towers for water operate on the principle of heat dissipation through partial evaporation of the circulating water. The heat thus removed by the evaporation of water is called latent heat of evaporation.




Few Definitions

Tonne of Refrigeration

Refrigeration effect equal to the melting of 1tonne of ice in 24hrs. This can be expressed as follows:

288000 Btu / 24hrs. or 12000 Btu / hr.


Principle of Cooling Towers

The water is an effective heat transfer medium and this is taken advantage of in cooling towers. The heat received by the circulating water from various kinds of process equipments is dissipated in the cooling tower for being recirculated.

he cooling towers operate on the principle of heat dissipation through partial evaporation of the circulating water. The heat thus removed by the evaporation of water is called latent heat of evaporation.


Calorie

The amount of heat required to raise the temperature of one gram of water by 1degree Celsius.


Range

The difference in temperature of the hot water entering the cooling tower and the cold water leaving the tower.


Approach

The difference between the temperature of the cold water leaving the tower and the wet bulb temperature of the air entering the tower.


Wet bulb Temperature

This is the lowest temperature water can be cooled by evaporation. Wet bulb temperature* is an important parameter in the cooling tower selection and design.


Heat Load

The amount of heat to be removed from the circulating water in an hour. Heat load is equal to the rate of water flow per hour multiplied by range.


Drift Losses

The water carried over and discharged to the atmosphere.


Blow Down Volume

Due to continued evaporation of circulating water in the tower the concentration of dissolved solids in the water increases. This is kept in check continuous bleed off of a part of the basin water.


Make Up

The amount of water required replacing the evaporation, drifting and blowing down volume. The quality of makeup water* should be with in the range specified.




Design Wet Bulb Temperature For Selected Indian Cities.


City Degree F Degree C
Ahmedabad 82.5 28.0
Ahmedabad 82.5 28.0
Allahabad 81.0 27.2
Banglore 75.0 23.9
Bhubaneshwar 83.0 28.3
Bhopal 78.0 25.4
Bombay 83.0 28.3
Calcutta 83.0 28.3
Cochin 79.0 26.1
Coimbatore 81.0 27.2
Dehradun 78.0 25.6
Durgapur 83.0 28.3
Goa 83.0 28.3
Hyderabad 78.0 25.6
Jamshedpur 83.0 28.3
Kakinada 84.0 28.9
Kanpur 81.0 27.2
Lucknow 81.0 27.2
Madras 83.0 28.3
Madurai 80.0 26.7
Manglore 83.0 28.3
Mysore 78.0 25.6
Nagpur 80.0 26.7
Nellore 82.0 27.8
New Delhi 83.0 28.3
Patna 82.0 27.8
Ranchi 82.0 27.8
Rourkela 81.5 27.5
Salem 81.0 27.2
Trichy 82.4 28.0
Trivandrum 81.0 27.2
Vijaywada 80.6 27.0
Vishakapatnam 84.0 28.9



The Don'ts During Installation of Cooling Towers


Our Products

  • FRP Square Cooling Tower
  • FRP Round Cooling Tower
  • Evaporative Air Coolers
  • Closed Circuit Cooling Towers



Avoid any slope to tower Basin




Do Not Loop Outlet Pipe Above Basin




Do Not Place Pump Above Sump Outlet Level


Do Not Place Pump Above Sump Outlet Level