Yep, regular car anti-freeze has corrosion inhibitors mixed in which might
be desirable.
If your loop is completely inert, you won't do better than ordinary water
for heat transfer without going to exotic things like heat pipes (easier to
make than you might think). The glycol makes the heat transfer worse, but
it does keep the water from freezing and as I said, will have some
corrosion inhibitors mixed in. And Jim, I did mean electrically conductive
in the previous message. If that's not an issue, then water isn't a bad
idea if it's a matter of just getting the heat out. Look into 50/50 car
antifreeze mix, or even thinner.
-Bob
On Tue, Oct 8, 2019 at 11:26 AM Jim Barber <barberaudio@gmail.com> wrote:
> Hi Bob, thanks for the reply.
>
> In this particular case, the electrical conductivity of the coolant
> doesn't matter as long as the cooling efficiency stays up and
> the corrosion doesn't become an issue for the radiator, the baffle block
> or the pump. (I assume you meant electrical conductivity, not thermal)
> Would that change the equation?
>
> Anything that contributes to the conversation and gets people thinking
> contributes to the SNR... I'm no expert when
> it comes to these kinds of cooling systems, so can use all the help I can
> get.
>
> Thanks!
> Jim N7CXI
>
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