You Need To Understand Key Components Of Cooling Towers To Enhance Water Efficiency

Cooling towers are among the critical component used by many refrigeration systems to bring comfort or process cooling across variety of applications. There are stages in the system where heat is expelled to the atmosphere via evaporative process and these stages are common in industries, like oil refinery, power plants, chemical processing, steel mills, and other manufacturing foundries that require cooling process.

Cooling towers are available in two designs- open circuit and closed circuit. These are further classified by the direction of air-flow- counter flow closed circuit water cooling towers and cross flow cooling towers.

water%2Btreatment%2Bcooling%2Btower.jpg

Types of draft are also there- mechanical draft and natural draft.

Mechanical draft towers - These towers have air that is forced through the structure with a fan. The air flow in the tower can be pushed through via fans equipped at the tower base, or pulled by fans equipped at the tower top.

Natural draft towers - these towers are intended to move air upward through the structure in natural way, i.e. with no use of fans. In this tower, the natural law of differing densities is used between the ambient air and warm air. This warm air will rise within the chimney structure due to its lower density drawing cool air in the bottom part.

Counterflow cooling towers - These towers are having upward air flow that directly opposes the water flow running downward to offer good thermal efficiency.

Things you need to look after to maintain your counter flow closed circuit water cooling tower, and other available cooling towers are as under-

  • Corrosion - It is an electro-chemical or chemical process that degrades the system. Cooling towers encounter distinct types of corrosion like pitting, microbiologically influenced, galvanic, erosion corrosion.
  • Scaling - It is the precipitation of dissolved minerals components that have become saturated in solution. Factors that influence scaling are water quality, temperature, and pH. Scaling lowers the heat exchange ability of the tower due to insulating properties that make the entire system work with extra power to meet the cooling requirement.
  • Fouling - It occurs when suspended particles fall out of solution that leads to deposition. Common fouling agents include organic matter, silt, and process oils.

You can keep your counterflow closed circuit water cooling tower in good condition by not letting these things damage your cooling towers.

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License