I want to mount a heat source onto several heat pipes. The heat will be forwarded to coolers (four heat pipes, 200 mm) which are able to distribute up to 120 W without increasing the temperature of the device which should be cooled. The device itself will generate up to 100 W heat. Now I was wondering what would happen to the mounting point: Will the mounting point resp. the clamp used for fixing the heat source on the heat pipes also heat up? If yes, how much?

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    $\begingroup$ I am having trouble understanding what you are asking. A drawing would help a lot. Also, the abbreviation "resp." seems confusing. $\endgroup$ – hazzey Aug 30 '15 at 15:04
  • $\begingroup$ I am using "resp." for "respective". In this case I will clamp the heated device onto the heat pipes, therefore I use both words as synonyme. $\endgroup$ – arc_lupus Aug 30 '15 at 16:36
  • $\begingroup$ Why would the clamp not heat up? It is touching something that is warmer than it is. The fact that it is touching a "heat pipe" doesn't make it magic. $\endgroup$ – hazzey Aug 30 '15 at 17:40
  • $\begingroup$ @hazzey: The question is how much it would heat up, if the heat pipe is attached to something which has always room temperature. $\endgroup$ – arc_lupus Aug 30 '15 at 18:27
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    $\begingroup$ @arc_lupus As hazzey pointed out, the question is very unclear at the moment. Can you add a drawing? $\endgroup$ – Chris Mueller Sep 30 '15 at 15:59

Well, how much the clamp heats up is determined by a great number of factors, chiefly (off the top of my head):

  • The properties of the pipe (material properties: density, material type, size of contact area etc)
  • How the clamp interfaces with the pipe (e.g. metal on metal, thermal interface material between clamp and pipe, an insulator between clamp and pipe).
  • The properties of the clamp (material properties, initial temperature etc)

Regards the resp. abbeviation I think you're using it incorrectly. I'd say "Will the mounting point w.r.t. the clamp....." where w.r.t. means with respect to.


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