Commercial standard heat exchangers, typically a fixed tube bundle such as a BEM or BEU, usually have a 300 psig 300 F pressure/temperature rating on the shell and 150 psig 300 F pressure/temperature rating on the tubeside.
Also known as shell and tube heat exchangers, they transfer heat using liquid or steam that flows through the shell to heat or cool liquid in the tubes. Btu/hr. cooling capacity is based on cooling 180° F process water with 85° F water and a 10 psi pressure difference. Shell and tubes are 316 stainless steel for excellent corrosion resistance.
Water Cooled Exchangers Shell and Tube Plate Style They work by removing unwanted heat from a process and transfer it to the service media typically a water or water/glycol stream. Using water cooled heat exchangers allows the process to be cooled to temperatures not achievable by air cooled heat exchangers which are limited by the ambient climatic conditions. Also, water cooled heat exchangers are a lot more efficient in transferring/removing unwanted heat from one media to the next compared to air-cooled heat exchangers.
Many shell and tube heat exchangers use cooling water. There are a number of design criteria/principles, peculiar to the use of cooling water, which should be considered if the best design is to be obtained for such a unit. 1 SCOPE This guide gives good design practice recommendations in the form of a checklist (see clause 4) for shell and tube heat exchangers using cooling water.
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