In terms of raw energy efficiency and the ability to provide precise cooling under fluctuating load conditions, recirculating evaporative cooling water systems with chillers or heat pumps are the most efficient way to remove heat from a process or building air. However, adiabatic cooling systems can be a good fit with an overall lower cost for heat removal in some climates and applications.
Water treatment makes good economic sense. An effective water treatment program helps maximize the life, efficiency, reliability, and safety of boiler and cooling systems and minimizes total operating costs. Water treatment only represents a small percentage of the costs associated with operating a boiler or cooling system. However, this small percentage dramatically influences the total operating costs (fuel, water, maintenance, and labor).
Important Differences You Need To Know
Evaporative condensers are commonly used for heat rejection in low temperature ammonia refrigeration applications in cold storage and food processing plants. Although often confused with standard cooling towers, there are some key differences between evaporative condensers and the cooling tower systems used in HVAC applications. Understanding these differences and the challenges they present is important for water treatment program success.
Transferring heat into a process or rejecting excess heat from your facility is critical to keeping your facility up and running. Failure to transfer heat effectively to and from your equipment and processes may lead to increased operating costs, downtime, unscheduled maintenance, and reduced equipment life. Heat always flows from higher temperature to lower temperature in one of three ways: conduction, convection, and radiation.
What Standard Microbiological Tests Don’t Show
Uncontrolled microbiological growth in cooling and process water systems is a multi-billion dollar problem for businesses each year. The primary cause of this expensive problem is biofilm. Biofilms form when bacteria and other microorganisms found in the bulk water attach to exposed surfaces and begin to produce a mass of biopolymers known as extracellular polymeric substance (EPS). The EPS provides a sticky, protective barrier that allows complex communities of bacteria to thrive and exponentially grow. Bulky, biofouling deposits can quickly form as the EPS traps dirt, corrosion byproducts, and other debris suspended in the water, leading to blockages.