Hi Ken,
I had thought of doing it with a drip tank, yes. That definitely seems
like the simplest passive setup. I bet we could figure out something
else though.
My main goal with a passive setup would be to do away with fan noise.
>From that perspective a battery or solar powered pump would proba
Jack, I'm intrigued by this.
Am wondering how you envision establishing a passive swamp cooler
setup? That is, no pump. I understand how you will move the air (via
heat convection with the solar chimney). But how will you move the
water to keep the the pads moist? Or would this require refilling
A lot of national parks use the solar chimney for ventilation of outhouse
style toilets. It is very effective. They use about a 9 inch diameter PVC
pipe that goes up the entire side of the building and several feet above, so
it gets a good amount of sun exposure. I think you could do it with smalle
The black pipe concept is similar to what is known in passive-solar building
as a "solar chimney." Google that term for some more inspiration. Solar
chimneys do work.
-- ken winston caine
On Fri, Aug 26, 2011 at 4:30 PM, William Ozier wrote:
> First off I am also a skeptic on this version of th
First off I am also a skeptic on this version of the cooling
effect...though the conditions set in the video did not match the
description of how the effect works. Anyway, I had an idea for a
hexayurt passive cooling system that I designed, and started but did
not get to try last year (and won't th
Greetings,
Sorry I'm behind again, catching up from being at Pennsic (and living in
a collection of connected traditional ger (yurt)) cooled in the
traditional style (open roof vent hole, raise the sides a little, and
get a pleasant breeze) quite pleasantly.
A few questions, if I may,
On Tue, 20
There is also the small roof turbine:
http://youtu.be/nWsVl1t5NQ0
Now, I'd like to put one of these on top and see how my smoke flows
through it.
Problems with these?
The bearings are cheap and freeze up.
They also make a lot of noise all night keeping you awake.
SoI'm still into an active fa
On Aug 10, 2:06 am, Jack Senechal wrote:
> So if you put a tall black chimney on top, does it significantly
> increase air flow I wonder? I'd expect it to in sunny conditions...
Yes, I bet it would.
Now imagine a wide, black painted "chamber" in the pipe on top.
There would be more surface area t
So if you put a tall black chimney on top, does it significantly
increase air flow I wonder? I'd expect it to in sunny conditions...
On Tue, Aug 9, 2011 at 7:04 PM, KK wrote:
> Ok...part 2 of the video test is up.
>
> http://youtu.be/bJXd71ZaWls
>
> Foam board covering. Model on ground.
>
> Outsi
Ok...part 2 of the video test is up.
http://youtu.be/bJXd71ZaWls
Foam board covering. Model on ground.
Outside Temp - 100 deg. F
Windspeed - 7mph
Sun Intensity - Off the chart!
Same result. No difference. No reverse air flow downwards.
So, if you are one of the "wee people" living in a tiny hex
You could run a fluid dynamics simulation on a hexayurt. Just enter in
the parameters.
Takes a beefy computer though. There's a project for bored university
guys!
It could settle it in "an instant".
As "Laurie" stated in her direct letter to BF
" The effect you
are thinking of is the Joule-T
Fluid dynamics doesn't scale. I've seen *very* odd effects around huge domes
at Burning Man - 60ft diameter, covered with a cargo chute, chimney-style
airflow up the sides of the dome for substantial cooling, but no downdraft.
But still very, very weird.
Perhaps we should get Mythbusters involved,
Make it happen Cap'n!
I gladly pass the torch to *you*
Let us know how you make out! Cheers ;)
On Aug 1, 9:34 am, Max Turunen wrote:
> I'm not convinced yet... needs more testing.
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To post to th
I'm not convinced yet... needs more testing.
On Mon, Aug 1, 2011 at 5:59 PM, KK wrote:
> Not gonna happen. These conditions probably cannot be met in "real
> life" anywhere.
> The proof would have been in documentation. If he did any at all.
>
> His only personal mention of this cooling (availab
Not gonna happen. These conditions probably cannot be met in "real
life" anywhere.
The proof would have been in documentation. If he did any at all.
His only personal mention of this cooling (available on the net and
book form) is rife with silly talk.
Laurie pointed this out.
There would need to
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