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Quote: Tca is used as 20.708mm. Where did this come from? and MAEP is comming 100.0058kPa which is below the actual applied one. So is that unsafe? 20.708mm is the thickness required for shell under external pressure and has been obtained by backcalculating required thickness for external...

Thanks very much.

sorry for that and here it is!http://files.engineering.com/getfile.aspx?folder=5ecceebc-49f7-426e-a5ac-bf8bce241d19&file=Pv_elite_result.pdf

Thanks doct9960 for reading and replying on this post. Actually this I am doing to learn it for getting into the world of pressure vessel. Somehow I have to study old cases and understand them to start than can jump on the software once I get the code basics and know how to read the results.

Good Day all, Can anybody have a look on the attached file page#22 and share please give some comments on this: 1- Firstly, I have checked the user guide of PVElite and found that for external pressure it takes 15psig (103.42kPa) whereas in the calcs shown on pg22 attached they have also added...

Good Morning All, Thanks for all of your contributions and I got few answers but one thing I think I couldnt clearified in the question. I am trying it again as under::: The word """Allowable Stress""" is the one which is confusing me. From this word I understand that the material should not be...

starrproe and gr2vessel Thanks for your reply mate! I have got that Hydrotest allowable stress= 1.3*137859 = 179263 KPa Where is this 1.3 times came from? Why PVElite is using that I mean is there any code reference for taking it 1.3times? Another thing I am confused with is that if allwoable...

Thanks James and Mandeep I got the problem almost solve now. Mandeep in your post you have mentioned Centerline radius, Rf = 0.17 * ID + 75 * tnom whereas your working is showing it to be as follows: Centerline radius, Rf = 0.17 * ID + tnom / 2 Just confirm the correct one please ! Also...

Thanks Starrproe, hmnn! good try mate but still one confusion please confirm this. You result is comming exactly to be 9.291% But if I do the following I am getting exactly 9.255% which is the exact answer. The difference is only in the formula """Centreline diameter = Dia+2*(Min...

Thanks james for your reply but mate! Do you agree with taking 0.17D and 0.9D for Rf? The calc you doing is from 0.17D will you not repeat this for 0.9D as well? Will you add both the elongations later on? Can anybody from PVElite take this as a challenge from a Compress user James? And verify...

James1 mate can you please have a look on the attached file to see if we are doing it properly in the light of given parameters and conditions. I still doubt in our interpretations because of the absence of references. In the one I did is because for my calcs there is no reference showing that...

Thanks mate, you really motivated me. After a lots of disappointments atlast I started this. I was always an all rounder doing bits of everything because of the need of the projects but now trying to focus on getting some detailed know how of one area like pressure vessel. I am asking this sort...

gr2vessels thanks very much and sorry if I offend you in any way through my silly questions (if any). I laughed at first answer :) actually I am not actually questioning their ability, not at all. I didnt know about that and was curious how to do that and also i was not sure weather mechanical...

Thanks gr2vessels for your reply, After posting that search I progressed further and found another reference of UG-32(d) which reads as "An acceptable approximation of a 2:1 ellipsoidal head is one with a knuckle radius of 0.17D and a spherical radius of 0.90D." From here I took the radai and...

Hi all In UCS-79 the formula is % extreme fibre elongation = 75t/Rf (1-Rf/Ro) now i have an elliptical head 2:1 D=3500mm h=875mm K=1 and for corrosion case D=3506mm, h=878mm and K=.998 Now I cant figure out where do I get this Rf and Ro to find the percentage elongation which is comming out...

Hi I got few things since last night which I am pasting as I get that, rest of them are still question in my head. The load cases are present in the user guide of PV ELITE which is easily downloadable from the following link www.cadfamily.com/Download.asp?ID=292931 and load cases from that are...

Good Day, I was going through the ASME Section VIII Div 1 and was also studying one of the vessel calculation results from PVELITE. I am grasping most of the calculations but some are still on top of my head. I will be grateful if somebody can resolve them with there strong background in this...

Thanks gr2vessels for your valuable replies and comments. So may I know what each of three sources say about the allowale stress for ASTM A-516 Gr. 70 ASME B31.3 says S=23.3 ksi (as mentioned above) ASME SEC VIII DIV 1 S= ???ksi (Please tell what it say, as I've serched and failed to find out in...