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#17441 - 04/20/08 11:03 PM cooling water analysis
nikhilsaiba Offline
Member

Registered: 05/21/07
Posts: 30
Loc: AP,INDIA
I am doing analysis for the cooling water line of 96". It is first for me doing the analysis for cooling water lines. The stress values are exceeding the allowables. Please anyone suggest me what type of supports needed for buried piping.

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#17442 - 04/21/08 01:06 AM Re: cooling water analysis [Re: nikhilsaiba]
corne Offline
Member

Registered: 07/09/07
Posts: 401
Loc: The Netherlands
There can be a lot of different reasons why the allowables are exceeded. Be careful when doing buried pipe modelling. Mostly there are local stresses that are higher than average pipe stresses. For example road crossings and the like.
Have you also considered the possibility of water hammer?

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#17445 - 04/21/08 02:14 AM Re: cooling water analysis [Re: corne]
nikhilsaiba Offline
Member

Registered: 05/21/07
Posts: 30
Loc: AP,INDIA
Thanks for your answer, but the pipe is failing at the reinforced joints. Is there any special supports for this type of piping and the loads on piping are also high.

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#17466 - 04/21/08 04:51 PM Re: cooling water analysis [Re: nikhilsaiba]
Mr. Shrimp Offline
Member

Registered: 06/13/07
Posts: 39
Loc: ConcepciĆ³n, Chile

I have not even clear what your problem, can you comment more on the subject
_________________________
------------

Juan Pablo Quiroz - Pares y Alvarez

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#17471 - 04/22/08 01:41 AM Re: cooling water analysis [Re: Mr. Shrimp]
corne Offline
Member

Registered: 07/09/07
Posts: 401
Loc: The Netherlands
Can you give some more info on the system? What kind of pipe, what type of pipe connections, what have you modelled? etc.
There can be a lot of reasons why an underground pipe calculation fails.

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#17482 - 04/22/08 06:52 AM Re: cooling water analysis [Re: corne]
G P SenthilKumar Offline
Member

Registered: 09/02/04
Posts: 29
Loc: chennai
nikhilsaiba ,

Your question is not clear. Anyway I give some ref documents.Give me ur e-mail id.

regards
senthil
_________________________
G P Senthil Kumar

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#17515 - 04/22/08 08:37 PM Re: cooling water analysis [Re: G P SenthilKumar]
nikhilsaiba Offline
Member

Registered: 05/21/07
Posts: 30
Loc: AP,INDIA
thank you sir
i have taken anchors when the pipe is coming to ground from buried i have not given any supports when it is buried, but the piping is over stressed when it is buried how can i reduce the stresses.

here i am giving my mail id
nikhilsaiba@gmail.com

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#17519 - 04/23/08 01:16 AM Re: cooling water analysis [Re: nikhilsaiba]
corne Offline
Member

Registered: 07/09/07
Posts: 401
Loc: The Netherlands
I think we still not have enough information about this pipeline.
What kind of material? is it 1 straight piece? temperature and pressure?
soil properties? These all influence the pipe stress.

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