NuPipe, Superpipe, KWU-ROHR -contact information 1

[smk4]

Hey,

(I asked this question in my former post, but it might have been overlooked, since it wasn't my main question then.)

Can someone give me the contact information for the following programs: NuPipe, Superpipe, and/or KWU-ROHR?


Thanks!

 

[vzeos]

Assuming Superpipe refers to the Princeton Gas Dynamics Lab Superpipe, the link is:

http://www.princeton.edu/~gasdyn/#superpipe_data

 

[vpl]

NuPipe is a really old (1970's) piping stress code used by Stone and Webster. Stone and Webster is now a subsidiary of The Shaw Group. You can find them through Google (or other reasonable internet search programs). However, I would take care in using this program due to its age and due to old NRC information notices that discuss defects in the program results.

Kwurohr (all one word) is a Siemens pipe stress program that is now proprietary to Framatone (according to their web site). It appears to be still in use.

I'll assume that Superpipe is also a type of pipe stress program. However, all the references I could find were to types of piping known as "super pipe" (or pipe in a pipe) or skiboarding. [Note: I did find one reference to a trade-marked NuPipe from a company called Insituform, but the Insituform website no longer talks about it...]

You might want to be a bit more specific about what you're looking for, rather than just the brand names as I noticed you've asked the question 3 times now.

Patricia Lougheed

Please see FAQ731-376 for tips on how to make the best use of the Eng-Tips Forums.

 

[smk4]

Thanks for your advice about the programs. Yes, I'm looking for pipe stress programs that also calculate the fatigue of pipes, but haven't been able to find anything about those mentioned above (I have found data about PIPESTRESS, ADLPIPE, ANSYS, etc.).

My goal is to figure out if any of the programs calculate the fatigue of pipes without having to preprocess the data of variable amplitude loading (non-constant, non-proportional loading). And if a program does have this quality, then how does it process the data (for example using the rainflow method, peak counting method, level counting method, etc.)

Also, it would be a plus if the program takes into consideration ASME Class 1 criteria (or RCC-M, Class 1).

Finding this information seems to be quite troublesome.

 

[vpl]

smk4

Try reposting the question in terms of your goal: "Calculating Pipe Fatigue" or "What Programs will Calculate Pipe Fatigue?" (or whatever variant works for you).

I have heard of an EPRI program called "Checkworks" which is a pipe fatigue monitoring program. From what I know, this program calculates pipe wall thinning. It predicts a certain thinning, and is self-correcting (i.e., when you enter actual wall measurements it goes back and redoes its predictions). You would need to contact EPRI (

http://www.epri.com)to

find out more about it.


Patricia Lougheed

Please see FAQ731-376 for tips on how to make the best use of the Eng-Tips Forums.

 

[NormPeterson]

This topic and

http://www.eng-tips.com/viewthread.cfm?qid=164194&page=1

should probably be administratively merged.

As ancient as those information notices are, I'd point out that one of the 'hits' on the search term 'NUPIPE' in the information notice databank identifies that problem as being in another software, uncovered as an unexpected by-product of stress analysis re-runs made during the investigation of an unrelated component weight issue.


Norm

 

[MJCronin]

smk4..

When you want an answer about an ancient piece of software, look for an ancient engineer..

From about 1973-1984, I periodicaly used both NUPIPE-II and SUPERPIPE for the stress/flexibility analyis of nuclear power plant piping systems.

NUPIPE-II was developed by a California consulting firm in the early 1970s and was developed to perform a code stress check (ASME-III piping code) evaluation of piping subject to thermal expansion, deadload and seismic loads. Stone & Webster in Boston Mass used this program extensively. The virtue of NUPIPE-II was that the piping input was easy and squadrons of piping designers could be trained to use it.

SUPERPIPE was a similar product, used, I think, by Bechtel.

ADLPIPE, which was developed by Arthur D. Little Co of Cambridge Mass, was developed for the same purpose..

I have no experience with KWUROHR, but i believ that "KWU" stands for "kernkraft werks union" (nuclear power plant) and, of course, ROHR is German for "pipe"....

vpl.... the EPRI "CHECKWORKS" program was borne out of concern for pipe thinning in operating plants and really has nothing to do with the other three programs, which are involved with piping system design.

Currently, the PC based CAESAR-II seems to be the winner in this evolutionary progression. It is supposedly developed and licensed to perform ASME-III nuclear plant stress analysis for piping systems.

My recollection only

-MJC

 

[MPS76]

… MJC

the upper mentioned software KWU-ROHR seems to be a Siemens (former KWU) inhouse solution no longer distributed outside (?). There is no sales organization.
There is another pipe stress program, not mentioned in your list:
ROHR2 (

http://www.rohr2.com)

which has import functionality for KWU project files.
ROHR2 is also a full fledged pipe stress program which is used a lot in Europe, offering the full range of stress codes (incl. ASME Cl. 1 and 2 and german nuclear power plant codes KTA . As shown on their website, the program has several interfaces (like PDMS, PDS, KWU-ROHR , etc.). It seems to be a German product.

I did not really work with it, but I saw documentation output of several projects and I heard about ROHR2 with easy to handle graphical input.


- MPS76

 

[DSB123]

MJC,
I agree Caesar has "grabbed" the market and seems to be a reasonable product for pipe stress analysis. However as far as I beleive (I may be wrong) it is not approved for Class I nuclear pipework analysis. I beleive this is due to the fact that Caesar does not report the maximum stress level in a bend. As far as I am aware there are only two pipe stress packages which can be used for Class I pipework, namely ADLPipe and PSA5(by Whessoe.

SMK4..
I do not think any of the Pipe Stress Programs on the market actually cover what you are wanting. This has to be done by manual methods from the results from a pipe stress package.