The thermal efficiency and longevity of the cooling tower and equipment depend on the proper management of recirculated water. Water leaves a cooling tower system in one of four ways.
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Evaporation: The primary function of the tower and the method that transfers heat from the cooling tower system to the environment.
Drift: A small quantity of water may be carried from the tower as mist or small droplets. Drift loss is small compared to evaporation and blowdown and is controlled with baffles and drift eliminators.
Blowdown: When water evaporates from the tower, dissolved solids (such as calcium, magnesium, chloride, and silica) remain in the recirculating water. As more water evaporates, the concentration of dissolved solids increases. If the concentration gets too high, the solids can cause scale to form within the system. The dissolved solids can also lead to corrosion problems. The concentration of dissolved solids is controlled by removing a portion of the highly concentrated water and replacing it with fresh make-up water. Carefully monitoring and controlling the quantity of blowdown provides the most significant opportunity to conserve water in cooling tower operations.
Basin leaks or overflows: Properly operated towers should not have leaks or overflows. Check float control equipment to ensure the basin level is being maintained properly, and check system valves to make sure there are no unaccounted for losses.
The sum of water that is lost from the tower must be replaced by make-up water:
Make-Up = Evaporation + Blowdown + Drift
A key parameter used to evaluate cooling tower operation is "cycle of concentration" (sometimes referred to as cycle or concentration ratio). This is determined by calculating the ratio of the concentration of dissolved solids in the blowdown water compared to the make-up water. Because dissolved solids enter the system in the make-up water and exit the system in the blowdown water, the cycles of concentration are also approximately equal to the ratio of volume of make-up to blowdown water.
From a water efficiency standpoint, you want to maximize cycles of concentration. This will minimize blowdown water quantity and reduce make-up water demand. However, this can only be done within the constraints of your make-up water and cooling tower water chemistry. Dissolved solids increase as cycles of concentration increase, which can cause scale and corrosion problems unless carefully controlled.
In addition to carefully controlling blowdown, other water efficiency opportunities arise from using alternate sources of make-up water. Water from other facility equipment can sometimes be recycled and reused for cooling tower make-up with little or no pre-treatment, including:
U.S. Environmental Protection Agency (EPA) WaterSense at Work cooling towers best management practice.
More often than not, the annoying noises coming from the cumbersome air moving systems in some kinds of cooling towers. Even the most efficient industrial cooling tower manufacturers cannot resolve it unless businesses learn how to choose the right type of cooling tower for their facility so that they can prevent any sorts of malfunctions happening around this area.
Now how exactly do you go around choosing the right type of cooling tower to fit your business? Learning about different types of cooling towers and understanding how they operate, their advantages and their disadvantages are crucial when making a choice; here's where we enter the picture to help you figure out how to do that.
Read on to find out what you must do to choose the best type of cooling tower for your business.
When choosing an industrial cooling tower, picking the right size is half the job; an appropriate size considering your facility can immediately elevate the benefits it offers. Cooling towers are an effective source of reducing heat from various industrial processes; hence size does make a difference.
Cooling towers are becoming more and more popular worldwide because of their ability to provide the most cost-effective solution to removing heat. And because of its integral place in a job, its size becomes an important factor to consider; what size of the cooling tower will support an application as efficiently as required?
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The wrong size can, at times, prove to be detrimental for businesses. An undersized cooling tower may fail to provide enough cold water to cool down the condenser loop of some office's HVAC system, leading the chiller to shut down completely and stop working. And this ultimately costs plenty of amount in repairs and a lot of extra load for the staff members or tenants.
The inappropriate size of the cooling tower can lead to a cooling tower that lacks sufficient capacity for cooling, which can cause severe damage to expensive processing equipment. At this stage, during a procedure, a shutdown can lead to significant losses in productivity. Hence, determining the correct minimum size of a cooling tower is crucial for good.
Many industrial cooling tower manufacturers in India offer you a wide range of sizes in cooling towers that can be used for nuclear and thermal power plants, food processing plants, HVAC systems, petrochemical plants, and petroleum refineries.
Assessing the efficiency of cooling towers is a mandatory part of the process. The cooling efficiency of cooling towers is highly affected due to limited aggressive chemical solutions because of the risk of harm and damage to metal surfaces. Moreover, in order to limit these potent chemicals used for the removal of biological growth from water, it can produce fouling build-up inside the cooling tower, eventually affecting the cooling efficiency.
This is the reason why many industrial cooling tower manufacturers are producing cooling towers made of high-density polyethene (HDPE) plastic. Cooling towers made from this material treat water more aggressively with the crucial chemical treatments required.
Consider the kind of noise cooling towers emits when buying one; many times, old cooling towers are so loud they sound like an aeroplane passing over your head. This trait fails to make productivity effective, especially in an office building. However, the new technology has allowed this noise to reduce down significantly.
We, at tower tech, are your one-stop solution to all industrial cooling tower needs. Tower tech is one of the leading industrial cooling tower manufacturers in India today, meeting businesses' cooling tower needs of all kinds. Get in touch with us today to know more about how we work towards meeting your needs and serving your facility the right way.
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