How can I consider the changing temperature of a copper object that is being cooled by coiling a pipe around the outside surface?

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AJ Purvis
AJ Purvis on 13 Jul 2021
Commented: AJ Purvis on 26 Jul 2021
Hi,
It looks like many of the heat exchangers offered in simscape require another fluid or gas. So that doesnt quite get the job done. I'm currently using a Pipe (TL) with convection, conduction, and a Temperature Source (see image). The temperature source provides a constant outside temperature but I need to model the changing temperature of the object.
Any suggestions are greatly appreciated!
AJ

Accepted Answer

Yifeng Tang
Yifeng Tang on 23 Jul 2021
The heat transfer between solid objects are best represented by conductive components and thermal mass. I suspect the thermal mass is what's missing right now.
Also, note that the pipe component has a convection wall model for heat transfer inside. So the pip "wall" temperature may not be the fluid temperature. The conductive heat transfer you have there will add onto the existing correlation. Just to make sure you are aware.
  4 Comments
AJ Purvis
AJ Purvis on 26 Jul 2021
So I've been working on this all day and I'm still not getting any significant drop in temperature from point A to point B on the Pipe (TL). I looked into a heat flow rate source and played with the values a bit with no luck.
With such a high beginning temperature of the copper object represented by the thermal mass, there should be a significant significant rise in temperature and pressure at the end of the pipe.
Currently the scope only shows -0.01 K change in temperature.
Again, your help is invaluable. Thank you for working with me.

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