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Article: Aluminum advantages.(Heat Exchangers)
- Article from:
- Process Heating
- Article date:
- June 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Air-cooling evaporators used in ammonia refrigeration systems traditionally have been made using galvanized (zinc-coated) carbon steel. However, other metals, including aluminum, are compatible with ammonia. Aluminum has been used in ammonia heat exchangers for several decades; its properties make it a suitable metal to use in ammonia refrigeration applications.
Designers and installers of industrial ammonia evaporators for low-temperature applications must consider the weight and performance of the equipment being specified. Corrosion resistance, cleanability and defrosting characteristics also should be evaluated. Table 1 compares several properties of aluminum ...