Temperature difference
Temperature difference
(OP)
Hello,
I am dealing with thermal expansion for a 32'' Steel pipe that will transport water. Parts of the pipe will be buried and some other exposed. I am very unsure on what to use as dT when calculaten the stress created by thermal expansion. Is is the largest difference in ambient temperature for the area, or the difference between operating temperature and ambient temperature? May something completely different I am not sure. BTW I am trying to calculate linear expansion not radial. Please help!
Sorry for the bad english
I am dealing with thermal expansion for a 32'' Steel pipe that will transport water. Parts of the pipe will be buried and some other exposed. I am very unsure on what to use as dT when calculaten the stress created by thermal expansion. Is is the largest difference in ambient temperature for the area, or the difference between operating temperature and ambient temperature? May something completely different I am not sure. BTW I am trying to calculate linear expansion not radial. Please help!
Sorry for the bad english





RE: Temperature difference
"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek
RE: Temperature difference
RE: Temperature difference
"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek
RE: Temperature difference
You need to use the difference between the the pipe temperature at the time of installation (normally 10 or 15 deg.C) and the warmest or coldest pipe operating temperature.
The idea is to calculate the maximum thermal expansion/contraction of the pipe after installation. Hence, dT= (pipe temp. at the time of installation)-(warmest or coldest metal temp.)
RE: Temperature difference