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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...material selection for wet air chiller exchangermaterial selection for wet air chiller exchanger
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10/13/2006 9:00 AM
 
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We have a chiller mainly used to cool the ambient air. Tube side medium is FREON(Operating temp is 5 Deg.C) and shell side is Air(Inlet-40 Deg.C & O/L is 10 Deg.C).The tube metallurgy is carbon steel A179.Due to continuous presence of moisture the tubes are getting corroded externally and severe scale formation was noticed at the shell side. Is there better metallurgy available to combat the tube external corrosion by moist air.Your valuable suggestion is highly appreciated. regards,
 
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10/18/2006 9:00 AM
 
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Krish: There are several metals/alloys that will exhibit increased corrosion resistance in the moist air envirnment, including copper/brass and stainless steel. With the copper/brass tubing, you should make certain that there is no source of ammonia that would tend to stress crack the copper alloy. Hope this helps! David Hendrix The Hendrix Group Inc.
 
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