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[binzee]

Dear All,

I have a horizontal cylindrical vessel with hemisphericalends.
In order to proceed with relief load calculations,Wetted Area is required.

The problem is there are different equations for calculating wetted area

e.g.

Awet,cyl = 2LR Cos^-1((R-H/R))

Awet,hemi head = piRH


Another one is like this

Wetted area of 2 hemi heads = 3/4(H/R)²(1-1/3(H/R))piD²


Another one states that......

Awet(Cyl + Heads) = V_L*A/V

where
R= Radius
D= Diameter
H= Liquid Level
V_L=Vessel volume at H (or desired level)
V= Total vessel volume
A= Total of the vessel


Please advise

Edited by binzee, 05 October 2010 - 12:32 AM.

[Zauberberg]

See: http://webwormcpt.bl...rea-for_11.html

There's a handy spreadsheet available for download as well.