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Re: Thermal ranges for expansion

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VP  Project Manager 
 
-----Original Message-----
From: Nels Roselund <njineer(--nospam--at)att.net >
To: seaint(--nospam--at)seaint.org
Sent: Thu, 25 May 2006 06:03:00 -0700
Subject: RE: Thermal ranges for expansion

David,

I can't make sense of your question? Does it say what you intended?

Nels Roselund, SE
South San Gabriel, CA
njineer(--nospam--at)att.net
-----Original Message-----
From: David Merrick [mailto:MRKGP(--nospam--at)winfirst.com]
Sent: Wednesday, May 24, 2006 5:42 PM
To: SEAINT
Subject: Thermal ranges for expansion

Where do I find thermal ranges for thermal expansion?

Geographic Location, Color, exposed, Thermal Conductivity, Thermal coef.
of expansion, heat sink

I have a Sacramento Valley, 4" black plastic(HDPE), and exposed pipe
with static liquid.

But in general: Roofs, slabs on grade, wall finishes etc.

--
David B. Merrick, Structural Engineer


I think he's asking a three part question

1) Climate data ....temperature ranges based on  Geographic Location,


2) Material Properties.......  Thermal Conductivity, Thermal coef. of expansion

 and a couple he left out..........(like one I cannot remember but related to solar radiation absorption....been too long)

3)  how all these factors & conditions all  play together to give you the amount of thermal expansion for various structural components

for answers

1)......USGS?  NOAA?

2) http://www.matweb.com/search/SearchProperty.asp?e=1

3) probably more in the realm of ME than CE/SE .  Depending on how accurate an estimate you need you could just pick high upper bound temperature & see how it impacts you design.

cheers
Bob