The peltier devices only get down to some range below ambient temp and then there is the power draw. I tried a few back in the early 2000's and they simply didn't pan out. White or at least very light paint and a couple fans did better and was much less draw.
On Fri, Jul 13, 2018 at 8:01 PM, Robert <[email protected]> wrote: > Has anyone that you have seen come out with any disruptive peltier devices? > > On 7/13/18 5:42 PM, [email protected] wrote: > >> I did a bunch of trials one summer testing a variety of methods including >> heat shields, exterior insulation, interior insulation, convection >> ventilation, forced ventilation, peltier effect active cooling. >> #1 by a long shot is painting the enclosure bright white. >> *From:* Bill Prince >> *Sent:* Friday, July 13, 2018 6:37 PM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] How to reliably cool a small enclosure in direct >> sunlight? >> >> 1. Add a thermostatically controlled ventilation fan >> >> 2. Put a heat shield up on the south side of the enclosure. This can be >> just a plate of aluminum, painted white on the sun side, and mounted to the >> enclosure with 1" standoffs >> >> We have a site like yours, and just the fan keeps the temperature below >> 120° F (49° C). I think if we added the heat shield we could drop it >> another 10° F. >> >> bp >> <part15sbs{at}gmail{dot}com> >> >> On 7/13/2018 4:51 PM, Sterling Jacobson wrote: >> >>> >>> I’ve got a few side of the house enclosures exposed to direct sunlight >>> part of the day. >>> >>> Inside the electronics are about ready to melt. Like 90C+ CPU temps. >>> >>> These are about 3’ x 3’ x 12 deep or something like that, so not a lot >>> of room. >>> >>> What are you guys using to keep these things decently cool? >>> >>> >>> >>> >> ------------------------------------------------------------------------ >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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