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# V 9.3.1 Required Minimum Level of Liquid to be maintained Inside Tank

## V 9.3.1 Required Minimum Level of Liquid to be maintained Inside Tank

(OP)
Equation in edition 13 for estimating the (Required Minimum Level of Liquid to be maintained Inside Tank) written as;

(Gin x Hin) + Wbott  / (p x R2)3 Gout × Hout =
noting that Hin in above equation is defined as (Height or Depth of Liquid Inside Tank).

Coming To;
Same Equation in edition 11 written as;
(Gin x Hin) + Wbott  / (π x R2)≥ Gout × Hout

Which look more logical? which one is correct?

In case the equation in edition 13 is correct; shall I divide Wbott by the total value of [(p x R2)3 Gout × Hout] or it shall be divided just by (p x R2)3 & multiplied by the rest (Gout × Hout)?

Also, R defined as Roof Dish radius; which isn't make sense, it should be bottom plate radius?

Mohd Yaseen
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