If I want to take into account 'static earthquake' for piping system and peak ground acceleration = 0,3g, what value should I take for the calculation?
PGA=0,3g or Peak ground spectral acceleration = approx. 0,3g x 2,5 = 0,75g ? (skipping soil type and importance factor).
In the first case...
Please look at the picture. Is it necessary to assume any other force from opening the safety valve?
I've seen some people add force directly at the outlet of the safety valve.
How do you evaluate this type of service / business?
Do you think that companies are willing to cooperate with external engineer or does everyone have their own stress engineer and it is not good business?
If you are doing a pipeline model in a stress analysis software and for example the pipe is 219 x 5mm, but the elbows and tees are 219 x 6mm.
Do you model/calculate with different thicknesses for each elements or model the pipeline of the same thickness 5mm for pipe and elbows/tees.
What is yours experience with export pipelines from PDMS and import to piping stress analysis software?
Does it work good and efficiently? Do you prefer to enter the pipeline yourself (from isometric) for calculations?
What formal qualifications are needed to be a piping stress engineer in US?
I'm from Europe and there are no restrictions here, everybody can be a proffesional engineer
(of course, the market verifies the real ones with knowledge and experience).
I'm planning to founded a small design office...
Please advice.
I have a question regarding to the EN 13445-3 chapter 17 - simplified assessment of fatigue life.
In the table 17-1 we have Maximum permisable pressure Pmax. and we should count this value for each element acc. to the formulas from EN 13445-3.
We need this value to calculate...
I am working on pressure vessel based on Div.1 citeria, but I also have to perform fatigue analysis.
Vessel will be manufactured in Europe so I need CE stamp and I need meet PED requirements.
Do you think that I can calculated the whole vessel by ASME VIII Div.1 and perform fagigue analysis...
I have a pressure vessel for 15MPa and I want to calculate this vessel by ASME VIII Div.2.
The customer wants to have stamp U.
If I use ASME VIII Div.2 the manufacturer should have stamp U or U2?
How much time do You usually have to design:
-simple pressure vessel (about 10 nozzles)
-simple heat exchanger ((about 10 nozzles)
calculations + drawings
Two weeks, three weeks or more?
What soft can you recommend to sketch simple pipelines in 3D? I don't need to perform documentation, only 3D model, but I have to be able to insert valves, sensors, etc.
I don't ask about advanced systems like PDMS.
Sometimes I need to draw several pipelines and cable routes in 3d.
Now I have...
