Cooling tower performance can be negatively affected by the presence of what type of growth?

The presence of biofilm in cooling towers can significantly impact their performance due to its ability to insulate surfaces, thereby reducing heat transfer efficiency. Biofilm is a layer of microorganisms that can develop on surfaces in contact with water, often thriving in moist environments typical of cooling towers. This growth not only creates a barrier that impedes the normal operation of heat exchangers but can also contribute to clogging water flow passages, leading to reduced circulation and increased energy consumption.

In addition to the thermal performance issues, biofilm can also promote the growth of bacteria, which may cause health risks and regulatory concerns if not managed properly. Effective maintenance and treatment regimens, including regular cleaning and chemical treatments, are essential to mitigate these effects and maintain optimal cooling tower operation.