Industrial Applications of Cooling Towers

Open and closed-circuit cooling towers are types of cooling equipment that reduce the temperature of water and other process fluids through water circulation, evaporation, and heat transfer. These systems are widely used in various industries. In this article, we’ll explore the industrial applications of cooling towers . Stay with us to the end for more details.

Cooling towers have a wide range of industrial uses. The main applications of open and closed circuit cooling towers include: petrochemical plants, oil and gas industries, pharmaceutical manufacturing, paint production, metal smelting, chemical factories, glass production, rubber and plastic injection industries, food processing, paper manufacturing, and any industry where cooling water is essential in the production cycle.

Cooling Tower Applications in the Wood and Particleboard Industry To understand the use of cooling towers in the wood and particleboard industry, it’s important to note that glue is one of the key materials in particleboard production. This glue undergoes a chemical process that generates high temperatures. Therefore, cooling the glue furnace is a critical role of cooling towers in this sector. A key design point here is selecting a cooling tower with the right capacity, accurately calculated based on the glue production volume.

Cooling Tower Applications in the Plastic Injection Industry Plastic injection is one of the major methods for producing polymer and plastic parts globally. Cooling towers play a vital role in this process. The method involves injecting raw materials under pressure into molds with very high, pre-set temperatures. Once molding is complete, the molds need to be cooled. At this stage, cold water from the cooling tower is pumped into the molds to reduce their temperature and ensure proper cooling.

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Cooling Tower Applications in the Food Industry In food manufacturing—such as producing cheese, yogurt, cooking oils, tomato paste, and beverages like yogurt drinks and malt drinks—both heating and cooling processes are used. Cooling towers are essential during the cooling stage, one of the core steps in the production process. Chilled water from the cooling tower flows into predefined heat exchangers, helping to lower the temperature during product manufacturing.

Application of Cooling Towers in the Steel and Metal Melting Industries Iran is recognized as one of the world’s leading producers of steel and the metal melting industry. Cooling towers are mainly used in induction furnaces in these industries. The main purpose is to lower the temperature of the furnace during the metal melting process. Simply put, cooling water from the tower enters the induction furnace and other process lines that require cooling, absorbs the heat, and cools the equipment.

Application of Cooling Towers in the Oil and Refinery Industry In the oil and refinery industry, crude oil is initially heated up to 400 °C. Then, through various methods such as distillation, it is gradually separated into different petroleum products. Cooling towers are used in this industry to cool the production process inside heat exchangers and prevent excessive temperature rise.

Application of Cooling Towers in Power Plants As you know, air compressors are used in power plants to compress air for electricity generation. These compressors and even the generators have internal water circulation systems that require cool water. Cold water is pumped from a cooling tower to the generator condensers. After absorbing heat through the heat exchanger, it returns to the cooling tower. Depending on whether the system is open or closed loop, the warm water comes into direct or indirect contact with the outside air, which results in heat transfer and water cooling. In open-loop cooling towers, one major concern is the increase in water hardness and impurities due to evaporation. As water evaporates, minerals and impurities become more concentrated, leading to scaling in the generator exchangers and increasing their temperature. Moreover, a generator requires cooling water for components such as oil, charge air, turbocharger air, and cylinder heads. If the water temperature rises too high, these parts risk failure. Therefore, maintaining standard water hardness levels in the cooling tower is crucial.

Cooling Tower Industrial Applications at a Glance From the above, it’s clear that in industries such as glass production, pharmaceutical manufacturing, paper production, and more, cooling towers play a key role in the cooling stage of the production process. Due to their importance, accurate calculations are necessary when selecting the tower’s capacity. Choosing the wrong capacity can lead to significant financial losses.

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