Insight into today's corrosion problems in cooling tower systems.

Type of article: Article

Summary

A serious problem is unfolding in parts of Australia as a result of two recent regulations. The first of these restricts the use of chromate-based inhibitors and their substitution by chromate-free compounds which take up to 10 times as long to build up a protective coating. Secondly, legislation now requires that some cooling towers are disinfected regularly with chlorine. This removes the protective coating from the inside of metal pipes. Corrosion rates are up to 30 times as high, with extensive pitting and tubercule formation. Various suggestions are offered to limit this damage. A.R.T.

Details

Original title: Insight into today's corrosion problems in cooling tower systems.
Record ID : 1996-0863
Languages: English
Subject: Regulation
Source: AIRAH J. - vol. 48 - n. 12
Publication date: 1994/12
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: Evaporators, condensers and other heat exchangers;
Refrigerant circulation: piping, control, automation, safety;
Refrigerating equipment: regulations and standards
Keywords: Regulations; Maintenance; Cooling tower; Australia; Disinfection; Corrosion