Monitor and control cooling water corrosion.

This article presents information regarding monitoring and controlling cooling water corrosion. Corrosion of heat exchangers and associated piping is a major problem in chemical process plants like ammonia-urea fertilizer plants. Key equipment, such as piping, valves, condensers and hear exchangers, can be degraded by corrosion attack of cooling water. Such attacks can reduce equipment performance and reliability and, in extreme cases, lead to unexpected failures and shutdowns. The cooling water system at ammonia-urea fertilizer plant was commissioned in 1994 and the experience in the past 10 years of operations is shared.