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| Disipating 60W of the hot side of the peltier cooler |
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| Saulius:
Hi fellow enginerds, I haven't done much heat dissipation calculations. So I would like some advice. I will be cooling some devices with a thermoelectric cooler, and I need to dissipate at least 60W on the hot side of the peltier element. I am trying to decide on the most reasonable solution. Distentions of the peatier element are 55x55mm. I was thinking of using a heat sink, but not sure what size should I use and what size fan should I use. If anyone has any advice, it will be greatly appreciated. Thanks :) |
| ejeffrey:
That is about the right size and power budget for a standard CPU heatsink and fan. I would first look if you can just use one of those off the shelf. |
| ConKbot:
How close to ambient do you need to keep the hot side? I.e. If you're just temp stabilizing a laser or something, pretty much any desktop CPU cooler should suffice. If your trying to stay as close to ambient as possible, something like a NH-D15 is about as good as you'll do in the consumer segment for a 1-piece solution. (I.e. not an All In One sealed water cooler) Anandtech did proper thermal measurements with a 60W load (convenient for you ) https://www.anandtech.com/show/9415/top-tier-cpu-air-coolers-9way-roundup-review/12 6.5C above ambient at 60W, with thermal resistance coming in at 0.0944C/W for the 60-340W range. |
| SiliconWizard:
I would also consider a CPU cooler. Beware that the typical contact surface of a CPU cooler is smaller than 55x55mm, so that may leave a peripheral belt on the Peltier module excessively hot? What are you going to do with this Peltier cooler? |
| Marco:
There's vapor chamber heat spreaders on Aliexpress nowadays, anyone ever tried them? |
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