All,
Power piping does not consider weld srength reduction factor W (Wc in Caesar II) but process pipng does and B31.3 addresses a situation where at temp. more than 1500 deg F., W should be obtain by the Designers themselves. Does anyone knows where this figure would come normally?
Thanks...
So far I did have Stress Handbook by Helguero though I've not used it for a long time (a lot are not applicable anymore). And there was not a shell and tube type Heat Exchanger included but an air cooled type even then that current Caesar II module includes only the air cooled type. For a 24" to...
Hi there guys,
I know this is the right forum for this question and I believe too mostly are working on process engineering. This question could be very simple for you but it took me a while to figure it out simply becuase of the metric unit I'm not use to. I have a system running on compressed...
I thought quickly this could be easy but it seems to give me a bit of confusion. Where you realized a pressure thrust exist, you simply multiply the inside crossectional area of the pipe with its operating pressure and, that is if the change in direction is 90 degree. How do you evaluate this...
Hi all,
I am evaluating an extended trunnion at the bottom of pipe. Imagine a horizontal pipe and sticking 270 degree (below the pipe) is a trunnion which is also a pipe and the length is about 2 feet from the center of the carrier pipe. To prevent the carrier pipe from moving (the pipe in...
Hi all,
Can anybody tell me where to get the modulus of rigidity of pipe or is this figure calculable? I need the modulus of rigidity of 2" to 6" sch. 40 pipe. Thanks for help and tips.
Regards,
Phil
I heard most people saying the welded part is much stronger than the base metal attached until I finally read some actual reports claiming fatigue failure in welded parts. My queston is: Is the weld structure (meaning all portion thereof emanates from welding procedure - not the base steel...
Hi all,
I am curently studying FEA (ANSYS) and I may not be using this as mostly all of you on real-big complex model. I'll be using this hopefully to aid me on pipe stress analysis. On particular instance, I maybe using again and again an FEA to model and analyze a nozzle and TGS4 already...
Hi all,
I need to model a vessel nozzle with specific length, thickness, material specs and flange to mate a standard pipe specs. My main goal is to obtain a stiffness value (lb/inch and lb/inch/degree of roration). I need to figure this out when modeling and finally analyzing a piping system...
Hi all,
When modeling piping connected to a pump where the nozzle is small say 1" and about 6" long from the pump casing at 45 degree inclination, can anyone tell me how should I determined the nozzle stiffness in both axial, lateral and rotational axis of the nozzle (lb/inch, lb/inch-degree)...
Hi all,
Just my curiosity, in a boiler design ASME B31.1, the inside of the boilers have pressure vessels hanging and some with piping connections to the external part of the casing and for the most part a final product has to go to the steam turbine. To design a support of these pressure...
