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Large diameter vacuum vessel design

Large diameter vacuum vessel design

Large diameter vacuum vessel design

(OP)
Could anyone provide me with a design code or standard for the design of a vessel operating under vacuum (-22 kPa)condition? Internal pressure is only liquid level. The vessel is a large diameter (7000mm) absorber with a 15 degree top cone, flat supported bottom and a large rectangular opening.

Thanks
Rudo Louw

RE: Large diameter vacuum vessel design

If the diameter to shell thickness ratio is less than 1,000 then use ASME Sec. VIII methodology.  If this is a non-ASME vessel with D/t > 1,000 (such as API 650 tank), then the external pressure design of the shell can be evaluated using the David Taylor Model Basin Formula.  This is given in formula (3-6) in Part III of Volume II of "Steel Plate Engineering Data".  This very useful and inexpensive ($50) reference is available from the American Iron and Steel Institute at:

http://odin.syscomsrv.com/aisishop/product.asp?pf%5Fid=T%2D192&dept%5Fid=511&top%5Fdept%5Fid=2005

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