![]() This will be handled by mechanical engineers with experience in the field. ![]() Generally, chemical engineers will not be directly involved in detailed mechanical design of pressure vessels. Pressure vessels typically consist of a cylindrical shell and elliptical or hemispherical heads at the ends (Peters and Timmerhaus, 2003). Pressure vessels with a wall-thickness:diameter ratio of less than 1:10 can be classified as thin-walled, and the rest, thick-walled (Towler and Sinnott, 2013). Types of equipment that can fit these descriptions include many reactors, separation columns, flash drums, heat exchangers, surge tanks, and storage vessels. ![]() While there is no formal definition, generally any closed vessel over 150 mm in diameter and that will experience a pressure difference of greater than 0.5 bar can be classified as pressure vessels. Codes for pressure vessels can be found in the ASME Boiler and Pressure Vessel Code (ASME BPV code).
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