What is the purpose of adding chemical additives to cooling tower water?

The purpose of adding chemical additives to cooling tower water primarily centers around the need to reduce the formation of scale and algae. In cooling systems, water continuously circulates to absorb heat, but this can also lead to the concentration of minerals and other substances in the water, which may precipitate out and form scale. Additionally, stagnant water and environmental factors can promote the growth of algae, which is not only a nuisance but can also hinder the efficiency of heat exchange.

By incorporating chemical additives such as biocides, scale inhibitors, and dispersants, facilities can maintain water quality, ensuring that the cooling system operates efficiently and effectively. This helps in preventing clogs, ensuring proper heat exchange, and extending the lifespan of the equipment involved in the cooling process, thus maintaining overall system reliability and performance.