pipingdesign: RE: Flex analysis

From: <Steve>
Date: Fri May 13 2005 - 17:02:00 EDT

Thanks for thanking me.

-----Original Message-----
From: PipingDesign@yahoogroups.com [mailto:PipingDesign@yahoogroups.com] On Behalf Of Guillermo Guerra
Sent: Saturday, May 14, 2005 8:38 AM
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign] Flex analysis

Thanks Steve

>-- Original Message --
>To: <PipingDesign@yahoogroups.com>
>From: "Steve McKenzie" <Mechproj@xtra.co.nz>
>Date: Fri, 13 May 2005 19:46:01 +1200
>Subject: RE: [PipingDesign] Flex analysis
>Reply-To: PipingDesign@yahoogroups.com
>
>
><html><body>

<tt>

Hi Guerrat 
 

unfortunately I cannot agree with using 70C to allow for solar effects. Some pipes can get much hotter, especially when empty, and empty pipes happen. For long lines in sunny equatorial clima >es, I always do rough sums, 
breaking the line into the straight portions between bends and estimating the bending stresses at the major direction changes. If the roughly estimated bending stresses are below 20% of residual allowables 
>
(depending on service severity) and there are no code compliance issues, I will make due allowance for expansion and leave it at that. If not I will go the whole nine yards. Solar gains are not that difficult to work out; its just an i >erative 
thing once you have settled on the design radiation, surface emissivity and the sky temperature. I should think some PEs will jump on me now, so I'll leave it at that. By the way, working it out is fun, and it gets easier ea
>h time. Plus 
you wind up eventually being a guru. 
 

Cheers 
 

Steve 
 

-----Original Message----- 
From: PipingDesign@yahoogroups.com
[mailto:PipingDesign@yahoogroups.com] On Behalf Of Kuswadi@ikpt.com 
Sent:
>riday, May 13, 2005 1:01 PM 
To: PipingDesign@yahoogroups.com 
Subject: Re: [PipingDesign] Flex analysis 
 
 
 

for very long piping line, although the fluid temperature is at ambient temperature, we shall consider the sola > radiation effect, the most 
severe condition, which could produce long thermal movement. 1. so piping engineer shall calculate such system at Solar radiation temperature, u can input 70degree C for calculation, or 40/50 centrigrade,
>depend on ur calculation requirement. 2. input for nozzle thermal movement if any 3. u can consider to make piping loop to absorb thermal movement Best Regards Muhammad Kuswadi Piping Mechanical Engineer PT IKP > 
Engineering Procurement and Construction Jl. MT Haryono Kav 4-5 
Jakarta 12820 
Indonesia 
Enjoy allways ur life 
 
 

 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â &n >sp;Â Â Â Â "gguerrat" 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â <gguerra_geci@att.Â Â Â Â Â Â Â To: Pipi
>gDesign@yahoogroups.comÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

>nbsp;Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â net.mx>Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â cc: 
 

&nbs
>;Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Sent by:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Subject: [PipingDesign] Fl
>x analysisÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â &
>bsp;Â Â Â Â Â Â Â Â Â Â Â PipingDesign@yahoo 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â groups.com 
 

 
 

>BR>
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 05/13/2005 05:39 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â &n >sp;Â Â AM 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Please respond to 
 

Â Â Â Â Â Â Â Â Â Â Â Â Â >nbsp;Â Â Â Â Â PipingDesign 
 

 
 

 
 
 
 
 

Hi 
 

Im related with the analysis of a carbon steel 8 in pipe for water ambient temperature instaled on exterior on suports with a len >ht of 900 
meters. 
 

do any know if this type of system requieres, flexibility analysis for the lenght and for the temperature on sun conditions about 45 or 50 centigrades Thanks >
 
 

=========================================<BR>

PipingOffice - Excel Spreadsheets for Piping Calculations <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>

=========================================<BR>

Main site: <
> href="http://www.pipingdesign.com">http://www.pipingdesign.com</a> 
 

Yahoo! Groups Links 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

=========================================<BR>

PipingOffic
> - Excel Spreadsheets for Piping Calculations 
<a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>

=========================================<BR>

Main site: <a
href="http://www.pipingdesign.com">http://www.pipingdesign.com</a> >
 
Yahoo! Groups Links 
 
 
 

 
 
 
</tt>

 
<tt>

=========================================<BR>

PipingOffice - Excel Spreadsheets for Piping Calculations <a href="http://www.pipingoffice.us/">http://ww >.pipingoffice.us/</a>

=========================================<BR>

Main site: <a
href="http://www.pipingdesign.com">http://www.pipingdesign.com</a> 
</tt>
 

 
<tt><hr width="500">

><b>Yahoo! Groups Links</b><br>

<ul>
<li>To visit your group on the web, go to: <a
href="http://groups.yahoo.com/group/PipingDesign/">http://groups.yahoo.c om/group/PipingDesign/</a> Â
<li>To unsubscribe from this group, send an email to:<b
>><a
>>href="mailto:PipingDesign-unsubscribe@yahoogroups.com?subject=Unsubscr ibe">PipingDesign-unsubscribe@yahoogroups.com</a> 
<li>Your use of Yahoo! Groups is subject to the <a
href="http://docs.yahoo.com/info/terms/">Yahoo! Terms of Service</
>>.
</ul>
</tt>


</body></html>

PipingOffice - Excel Spreadsheets for Piping Calculations

http://www.pipingoffice.us/ =========================================

Main site: http://www.pipingdesign.com

Yahoo! Groups Links Received on Fri May 13 17:02:00 2005

This archive was generated by hypermail 2.1.8 : Mon Oct 27 2008 - 20:24:07 EDT