March 2002

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HP Water Management: Audit your closed-loop cooling water circuits

Many plants with highly decentralized operating units often useseveral closed-loop cooling systems to serve process systems.Traditionally, the utilities department may also haveresponsibility for smal..

Huchler, L. A., MarTech Systems, Inc.

Many plants with highly decentralized operating units often use several closed-loop cooling systems to serve process systems. Traditionally, the utilities department may also have responsibility for small- and medium-sized comfort systems with closed-loop chilled water that serve office facilities. System description. The most important assessment for a closed-loop system is determining if the system is truly closed. Units that annually leak greater than 5% of the system volume should be treated as open systems. High makeup rates will introduce dissolved oxygen and microbiological organisms that can compromise the corrosion- and deposition-control program and system reliabili

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