pressure vessel interanl pressure
pressure vessel interanl pressure
(OP)
In Asme division 1 , for calculating required thickness for internal pressure , the rule has a term " P " which is internal pressure . now I have a general grawing of pressure vessel with internal pressure 3.5 bar gauge , so shall I use bar gauge ( barg) or absolute (bara) as they will give different answers ??





RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
For understanding , Let me create one design scenario.
We transfer your designed (3.5 bar g) Vessel thickness corresponding to this to moon will it survive? Considering Moon does not have atmosphere you need to design it for Absolute pressure and not gauge pressure.
Earth atmosphere (gauge pr) actually gives you leverage of @ 1.01325 bar (1atm pr) from outside so you can design for less pressure Gauge which is numerically less than Absolute.
Hope it clears the doubt.
cheers
AK
Beginning of every success is desire
RE: pressure vessel interanl pressure
RE: pressure vessel interanl pressure
Vessel will not sustain the design requirements.
Absolute pressure for process in our case is 3.5+1.01325 = 4.01325 bar A
When we transfer to moon
Gauge Pressure = 4.01325 (Bar A) - Atm pr (0 on moon) = 4.01325 bar G (moon)
So you need to design at higher value design pressure which will further increase the thickness.
cheers
AK
Beginning of every success is desire