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I just purchased an aluminum heatsink that I am using to "wick" away heat from a Peltier; however, I was wondering how I can pull heat from the hot side of the peltier quicker.

I have purchased large, small, medium sized aluminum heatsinks and have not been able to explain why one works better than the other. This is the root of the problem: what determines how fast a heatsink can wick heat away from the hotside of the Peltier? enter image description here

I was thinking adding copper heat pipes, such as the ones on a laptop heatsink-fan combinations; however, I would need to thermally attach the copper heatpipes to the same heatsink to cool them. I am afraid this might kill the efficiency of the heatsink.

Thank you, and I am looking forward to hearing your suggestions

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    $\begingroup$ given this question : engineering.stackexchange.com/q/21752/10902 perhaps you should consider some research on heat transfer theory i.e. conduction... $\endgroup$
    – Solar Mike
    May 15 '18 at 17:10
  • $\begingroup$ @SolarMike I've done a lot of research, just looking for someone to tell me: Yeah, that would be a good idea, or say: No, that wouldn't work because the efficiency decreases. $\endgroup$ May 15 '18 at 17:18
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    $\begingroup$ Did you use a thermal paste? The air gap between the radiator and the heat source, despite being micrometers wide, is a massive insulator. $\endgroup$
    – SF.
    May 15 '18 at 17:20
  • $\begingroup$ @SF. Yes, I have thermal paste between the ThermoElectric Cooler and the Heatsource; however, I can't explain what makes this heatsink-fan combo poor in comparison to others that I have purchased. I was hoping for some way to increase the efficiency of this heatsink. $\endgroup$ May 15 '18 at 17:24
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    $\begingroup$ @omarsumadi: Absolutely not. You want to maximize the contact surface between the heat source and the radiator. The pipes would only touch a minimal part of the surface and the paste is a lousy conductor. If the radiator is running hot though, you may use the pipes to drive heat to other radiators from it. Could you provide a photo or drawing of your rig? $\endgroup$
    – SF.
    May 15 '18 at 18:03
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Conductivity, surface area, and air flow are the major factors.

Some have a plastic funnel so the fan can be larger than the sink.

I assume (hope) you get better with larger heat sinks and fans.

A case fan also helps.

That looks like a relatively small fan. I get full size cases for better cooling.

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