August 2000

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HP Water Management: Sacrificial anodes in cooling water systems

Cooling water chemical treatment programs are designed to control deposition and corrosion. In most systems, there is a trade-off between corrosion and deposition control. When the chem..

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

Cooling water chemical treatment programs are designed to control deposition and corrosion. In most systems, there is a trade-off between corrosion and deposition control. When the chemical treatment program is optimized for deposition control, corrosion protection is reduced, and vice versa. Sometimes the cooling water is so corrosive that chemical treatment cannot economically treat for both conditions. In these situations, sacrificial anodes are used to reduce galvanic attack and supplement corrosion control. Heat exchangers with dissimilar metals in the tube sheet and shell are good candidates for sacrificial an

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