I have an API 650 floating roof tank where gasoline is stored . Vapor pressure is 70 kPa.
Tank is ATM designed.
PV- breather valves are set @ 3,55mbarg/-2,55 mbarg.
3,55 mbar = 0,355kPa
We got an observation of "excessive" losses so we where requested to study a solution to increase set...
I would like to ask your opinion about the following issue
(API 650 floating roof tanks):
1) BREATHER VALVES (RIM VENT): the API STANDARD 2000 allows to calculate venting requirements (Inbreath/Outbreath) in term of Nm3/h. The standard also allow to size the venting devices ie: number and...