PVElite Steam Jacket
PVElite Steam Jacket
(OP)
The vessel shell has a steam jacket with 150 psig steam. If I remove the jacket and apply 150 psig external pressure to the shell, I get a different result than with the jacket pressure on. Why?





RE: PVElite Steam Jacket
what's your question?
RE: PVElite Steam Jacket
I seems to me that you are in the trouble of understanding the reason for full vacuum design of the vessel...Yes, if you remove the external jacket, you can/should design the vessel for the externally applied pressure, which in your case is the equivalent of full vacuum applied to the vessel. Please check the ASME code requirements for the vessel calculations subjected to internal and external pressure. It will instantly clarify why do you get different results applying the same pressure internally and externally.
Cheers,
gr2vessels
RE: PVElite Steam Jacket
RE: PVElite Steam Jacket
Regards,
Mike
RE: PVElite Steam Jacket
No. The jacket is on the entire cylinder.
RE: PVElite Steam Jacket
RE: PVElite Steam Jacket
I mean the required shell thickness is greater when I apply the external pressure than with the steam jacket on.