Chris -
Thanks for describing some of your approaches and experiences. Yes, occasional loads adds more consideration. I am thinking that using a WRC program to generate some allowable loads for vessels in the range of the project scope may be the best approach for now. But I'm going to search for the reference made by John Luf too.
Al -
Thank you, it looks like the HEI standards on Feedwater Heaters and Power Plant HX may be helpful.
Ken A. Nisly-Nagele, P.E.
Project Engineer, Mechanical
Applied Engineering Services, Inc.
7999 Knue Road
Indianapolis, IN 46250
317-585-8920
-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=_oxKznppDGEcKK-EMqD_dQGETD7vfCqbGGC0LVBHVD5LTAixxI9tCtCL8L0ffgzkkC0K9nMQXonKHHIVM-St1kiEFh8">PipingDesign@yahoogroups.com</a> [mailto:<a href="/group/PipingDesign/post?postID=_oxKznppDGEcKK-EMqD_dQGETD7vfCqbGGC0LVBHVD5LTAixxI9tCtCL8L0ffgzkkC0K9nMQXonKHHIVM-St1kiEFh8">PipingDesign@yahoogroups.com</a>] On
Behalf Of Al
Sent: Friday, December 02, 2005 5:40 PM
To: <a href="/group/PipingDesign/post?postID=_oxKznppDGEcKK-EMqD_dQGETD7vfCqbGGC0LVBHVD5LTAixxI9tCtCL8L0ffgzkkC0K9nMQXonKHHIVM-St1kiEFh8">PipingDesign@yahoogroups.com</a>
Subject: RE: [PipingDesign] Preliminary Nozzle Loads
HEI has a set of allowables but they cover only 4 of 6 Forces and Moments.
it is very difficult to create a comprehensive dataset for such a diverse
array
of possibilities (size, rating, design conditions, boundary conditions (ie
the wall thickness
and rigidity of the attachment). the problem is the assumptions inherent in
such cookie cutter
black box design need to be understood and they arent.
Many companies have such criteria, but predictably they are all over the map
and this alone highlights the issues.
Such an approach is fine if the originator or creator understands the
assumptions and limitations... this gets misused however.
-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=_oxKznppDGEcKK-EMqD_dQGETD7vfCqbGGC0LVBHVD5LTAixxI9tCtCL8L0ffgzkkC0K9nMQXonKHHIVM-St1kiEFh8">PipingDesign@yahoogroups.com</a>
[mailto:PipingDesign@yahoogroups.com]On Behalf Of John Luf
Sent: Friday, December 02, 2005 1:48 PM
To: <a href="/group/PipingDesign/post?postID=_oxKznppDGEcKK-EMqD_dQGETD7vfCqbGGC0LVBHVD5LTAixxI9tCtCL8L0ffgzkkC0K9nMQXonKHHIVM-St1kiEFh8">PipingDesign@yahoogroups.com</a>
Subject: Re: [PipingDesign] Preliminary Nozzle Loads
Hmmm....
There were a set of proposed limits published circa 50's by Messrs' Markl and Rossheim.... if I can find them I'll post them.....
John C. Luf
Master of unimportant trivia, mercenary, have slide rule will travel, from
somewhere in the U.S.A.
[Non-text portions of this message have been removed]
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