This tower has two separate fluid circuits one in which the fluid is recirculated on the outside of the second circuit which is a bundle of tubes through which the hot water is flowing.
Closed circuit cooling tower vs open circuit cooling tower.
Cooling towers winter operation free cooling 371 16 kb.
An immediate open circuit cooling tower is an encased structure that conveys warm water over a maze like pressing or fill which gives an extended air water interface for warming of the air and dissipation to happen.
Instead it circulates through a coil inside the cooling tower and water from a separate supply is sprinkled to achieve the evaporative cooling effect.
Equipment layout manual for cooling towers evaporative condensers closed circuit coolers.
Addition of a heat exchanger pump piping etc to the open tower loop brings the initial cost much closer to that of the closed circuit tower system.
There is no direct contact between the water to cool down and the air inside closed circuit cooling towers but an additional heat exchanger is however used.
I am new to the industry so i have very limited knowledge of the subject.
I have been recently asked to have a have an old bac cooling tower replaced with little to no down time to the factory.
Cooling towers with piping and plate heat exchanger also exist.
Closed circuit cooling towers.
A closed circuit cooling tower is also based on the principle of evaporative cooling but the water used by processes or chillers is never in direct contact with the atmosphere.
Choosing closed circuit cooling towers over this open tower heat exchanger combination may still be a better choice for the following reasons.
Addition of a heat exchanger pump piping etc to the open tower loop brings the initial cost much closer to that of the closed circuit tower system.
Open vs closed circuit cooling towers open vs closed circuit cooling towers engrdesign1856 mechanical op 27 jun 07 11 16.
Difference between closed and open circuit cooling towers.
A cooling tower is a heat exchanger that uses the direct contact with the air to cool down water.
Choosing closed circuit cooling towers over this open tower heat exchanger combination may still be a better choice for the following reasons.
In a closed circuit cooler process fluid is circulated through coils within the unit.