Transcription of HP-9 Specify the right fin - Hudson Products
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HP-9 Specify the right fin - Hudson Products
Improved design selection can mitigatecorrosion attacks on equipment andavoid tube failure S. McHughand S. E. Chapple, Hudson ProductsCorp., Houston, TexasAir-cooled heat exchangers (ACHEs) enhance heattransfer through fins. They are extensively usedto remove heat from process fluids (liquid or gas)by transferring it (heat) to atmosphere. The processincludes conduction from the fluid through the tube tothe fin and convection from the fin to atmosphere. Corrosion is a leading factor that degrades ACHEs performance. Operating in harsh environments, air-bornecontaminants mix with rainwater, seep into the tube-to-fin bond and corrode the tube and fin materials. Conse-quently, heat transfer efficiency degrades over time; tubefailure often shortens the exchanger s service on the process fluids and operating environ-ment, users must Specify and demand the best type offinning for ACHEs.
rosive liquids seep beneath the fins anywhere along the tube’s length, corrosion will spread, thus leading to per-manent failure of the tube-to-fin bond.
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