Technopriest
Mechanical
I was comparing the maximum allowable external pressures for a cylinder calculated with italian VSR design code and with ASME ed. 01 add. 02.
The result was amazing: with a 2500 mm Do, and t=10, VSR allows about 0,8 MPa external pressure (The vessel is a jacketed one, with 0,7 MPa in the jacket and vacuum inside). Using ASME design formulae I need about t = 24 mm to resist the same pressure.
(values related to the same material, ASME SA240 TP 316L)
I was wondering: It's my fault (I'm italian, I'm not too familiar with ASME) or it's ASME really this demanding against external pressure load?
Can someone check my comparison, perhaps using newer editions of ASME code?
(I'm pretty sure the VSR calculations are OK)
There are other references for external pressure vessel design?
Thanks in advance
Che Dio ce la mandi buona, o almeno ce la mandi- Massimiliano Eusebi
Check eng-tips rules: faq731-376
The result was amazing: with a 2500 mm Do, and t=10, VSR allows about 0,8 MPa external pressure (The vessel is a jacketed one, with 0,7 MPa in the jacket and vacuum inside). Using ASME design formulae I need about t = 24 mm to resist the same pressure.
(values related to the same material, ASME SA240 TP 316L)
I was wondering: It's my fault (I'm italian, I'm not too familiar with ASME) or it's ASME really this demanding against external pressure load?
Can someone check my comparison, perhaps using newer editions of ASME code?
(I'm pretty sure the VSR calculations are OK)
There are other references for external pressure vessel design?
Thanks in advance
Che Dio ce la mandi buona, o almeno ce la mandi- Massimiliano Eusebi
Check eng-tips rules: faq731-376