Are you saying white paint outperformed heat shields? That's awesome info.
I always thought heart shields were the best.

On Fri, Jul 13, 2018, 7:43 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?
>
>
>
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