We all know that the cooling towers are extensively used as the air conditioning system for the industrial plants and manufacturing units. The cooling towers are a common feature for any industries or factories, but they are also one of the most essential parts of these industrial units.
Whether it is an industry or a hospital or a big multiplex, cooling towers are required to keep the air cool inside. The cooling towers remove waste heat from a particular place and fill it with cool and fresh air. This cooling component of the tower cools off the warm water that gets stored in the chiller condenser of the tower. If you take a close look at the positioning of the cooling towers, then you will notice that the cooling towers are always installed at the end of the heat transfer process, since the waste heat gets transferred in the atmosphere.
In general, the cooling towers are designed in two different ways. These are:
- The Cross Flow Design
- The Counter Flow Design
The Cross Flow Tower
The basic mechanism of the cross flow cooling towers is that the water must remain at a particular angle to the airflow so that it can function properly. Any cooling tower that uses the technology of cross flow has a box like structure and it can work by pumping the hot water along the top of the cooling tower. The hot water then gets distributed in the two different sides of cooling tower and then it gets dropped through the tiny holes. There are plastic intake louvers or fans fitted at the sides of the cooling towers which enable the hot water to expand and spread before dropping. Afterwards this air gets sucked in from the outside inside the cooling towers by the help of the many fans. When the air comes in contact with the falling water droplets, it gets cooled off and goes to the bottom of the cooling tower. The cooled water in then pumped out again from the chiller dispenser. The excess heat that remains in the chiller gets transferred to water. This is how the cycle keeps on repeating to cool off the hot air.
The counter flow cooling tower functions quite different from the cross flow cooling towers. The air flow passage of this type of cooling tower located directly against the water flow. However, the counter flow also follows the same course of water flow as in the cross flow and water it spread out. But these types of towers are shaped like a funnel and they have only one fan fitted at the centre of the cooling tower. Below the fan there is a rotating water pipe for distribution. The water distribution pipe spreads out the water from a side and this helps in rotating the distributor. Because of the distributor the water gets dropped over the air inletting louvers and when the air gets in contact, it cools off.
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ReplyDeleteHello Everyone,
ReplyDeleteThis is an interesting concept about cooling towers design. The opportunities for improved energy and water consumption are undeniable and tower and component manufacturers have risen to the challenge. New designs and innovations, and new materials and also methods of manufacture have led to considerable improvements in performance and environmental impacts. New methods of system control and new system configurations are also achieving significant operational benefits. Thanks..
Evaporative Cooling Tower