Cooling Towers: Everything You Should Know

1. Cooling Cooling Towers: Towers: Everything Everything You You Should Should Know Know Cooling towers are broadly used to cool water at low cost using humidity. These towers are mostly used in industries such as Petrochemical, Chemical, oil refineries, thermal power plants and in HVAC systems for cooling purposes. In general, they are used to cool water. The towers are available in different formations depending upon the flow of air and water. Dispense of water is one of the major impacts of the cooling towers. Cooling tower consist of many components as such as: ● Packing Packing of of cooling The packing of the cooling tower is the most important part of the all. It should be able to withstand the load and other environmental effects. cooling tower tower ● Fan Fans and gears components are the heart of the system as the fan causes the air to move. It is also responsible for enhancing the rate of heat transfer in cooling the tower. Fan and and gears gears ● Drift Drift separator separator Due to the evaporation process, loss of water can be observed in the exhaust of cooling cooling tower tower designs designs. Drift eliminator is created to draw water droplets in the air stream. Hence, preventing water loss.

2. ● Water Water distribution distribution system Water distribution system contains pipes, drains, nozzles, valves and other gears. Such tools control the flow of water in the system and are liable for proper distribution of the system. system ● Air Louvers are the extra components for the proper running of the tower. It guards the entering of sunlight, noise and other hazardous things to enter into the cooling tower. Air intake intake louvers: louvers: ● Control Control instruments Cooling towers have an ample level of control and other temperature measurement control systems including many cooling tower parts. instruments for for level level and and temperature temperature measurement measurement What What is is the the cooling cooling tower tower nozzle? nozzle? Cooling towers nozzles help in directing the water into the fillers. Steady the distribution of water from the top of the filler. Nozzle is an essential component to get proper wetting of the filler surface. It could be fixed or might have round or square patterns or can be part of the rotating assembly. With the help of a nozzle the water disperses evenly across the heat exchanger. The material from which they are made most commonly includes PVC, glass or ceramics. Out of which some nozzles are high temperature resistant. And lastly, nozzles are used in both cross flow along side counter flow cooling towers. Let Let’ ’s s learn In the cross cross flow the side walls of the tower horizontally and then rises upward from the center of the cooling tower.Air enters at 90 degree to the direction of water. learn about flow cooling about Cross cooling tower Cross flow tower, water enters perpendicularly whereas air gets in from flow cooling cooling tower: tower:

3. Counter Counter flow flow cooling cooling tower tower Counter flow cooling towers consist of the air entering beneath the fills and moving upward opposite to the direction of the water flow. The air enters beneath the fill material and then rises up via the fill material. The water is spritzed through the pressure nozzles near the top of the tower and flows down by the fill material. Counter Counter flow ● Area Area of of the The area of the counter flow cooling towers is smaller in comparison to the cross flow cooling tower. It's a bit tough to handle and reach each and every part of the system. flow cooling cooling tower the cooling cooling tower: tower parameters parameters and tower: and consideration: consideration: ● Fill Fill options options of of Counter Counter flow flow system system Counter flow cooling tower comes with a variety of filler options. These different types of fills can be used in different ways. Thus, making it an important aspect for some applications as we need a more forgiving fill for the dust environment. ● Water Water channeling channeling process process Due to the pressurized system it is easy to make it undistributed water channeling in the system in case of low flow rates which cause freezing of water in the system. ● Lighter Lighter operating Counter flow towers are light in weight as compared to the cross-flow system for same size of drainage or output of the system. operating weight: weight:

4. Benefits Benefits of of counter counter flow flow cooling cooling There are several advantages of counter counter flow flow cooling cooling towers towers such as • Smaller as compared to the cross flow cooling system. • Lighter weight of the operating system • Several filling options which could be used for several applications depending on the quality of the water. What What are are cooling cooling tower tower fillers? fillers? Fill material is the material that is used in the cooling tower for the proper mixing of water and air. The good filler properly mixes water and air in the cooling tower. They are mostly made from plastic sheets. Cooling tower fills come in different sizes and shapes; they could be round, rectangular, square and trapezoidal the size of the cooling tower varies with the size of the tower. The filler thickness could be from 0.27 to .5 mm. If the width of the cooling tower is less than 1.22m than thickness of .38 or less could be used if thickness is greater than 1.22 than thickness should be larger than .38 to bear the weight of the system.