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Home > Archive > Alternative Power sources > August 2005 > Re: Insane House Cool-Down Scheme
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Re: Insane House Cool-Down Scheme
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nicksanspam@ece.villanova.edu wrote:
quote:
> Richard J Kinch <kinch@truetex.com> wrote:
>
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>
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> That scheme is unlikely to be efficient, with lots of thermal resistance
> (insulation) between the living space and the roof, and it's the wrong
> time of day to collect coolth, but Harry Thomason did something like this
....
I believe that, rather than collecting coolth, he is trying to reduce
the infiltration of heat during the day. He is not trying to collect
the runoff water, which has been heated, not cooled. It doesn't cool the house,
but just reduces the solar heating. It would be more effective if
you have minimal ceiling insulation and minimal venting between the insulation
and the roof (as is often the case in many "flat" roof houses).
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| JoeSixPack 2005-07-31, 1:21 pm |
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"Andy Hill" <andy_hill@hp.com> wrote in message
news:k7sja1p7pijo4p3ovoft7sp23nuec6flhv@4ax.com...
> Pudding.Man@Gmail.com (Puddin' Man) wrote:
> Sprinkler's are overkill -- you'll just end up with swamps where your
> gutters
> dump out.
>
> Chunk of 2x4 at either end of the roof peak, attached to fascia. 1/2"
> holes
> even with roof peak. PVC pipe (with lots of 1/32" holes) mounted along
> roofline. Cap PVC at one end, hose adapter on other (better would be
> hose feed
> at both ends, but the hose situation gets a bit more complex in that
> case).
To prevent "swamps" at your gutter drains, try this. A small sump pump
float switch in a rain barrel controlling a water valve or a small pump.
Choke down the water flow to the roof to the point where water flow is only
slightly more than evaporation. That way, the excess water that runs off in
the barrel will lift the float switch and shuts off the water supply. A
small drain in the barrel would allow the water level to drain down and
reactivate the switch and turn on the water supply again.
A further improvement would be this: Set up a rain barrel with a
stock-water float valve at the top. This is similar to a toilet float and
can be found at farm-supply stores. Attach a garden hose to it and it will
keep the barrel filled all the time to the level you choose. Then install a
sump pump in the barrel which feeds the water-soaker pipes on the roof. The
excess would run off and back into the barrel. You could even wire the pump
into a thermostat in the attic, so it would only turn on when the
temperature rises to a certain point. Totally automatic.
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"JoeSixPack" <olegp@telus.net> wrote in message
news:LI6He.150546$HI.24361@edtnps84...
>
> "Andy Hill" <andy_hill@hp.com> wrote in message
> news:k7sja1p7pijo4p3ovoft7sp23nuec6flhv@4ax.com...
>
> To prevent "swamps" at your gutter drains, try this. A small sump pump
> float switch in a rain barrel controlling a water valve or a small pump.
> Choke down the water flow to the roof to the point where water flow is
> only slightly more than evaporation. That way, the excess water that runs
> off in the barrel will lift the float switch and shuts off the water
> supply. A small drain in the barrel would allow the water level to drain
> down and reactivate the switch and turn on the water supply again.
>
> A further improvement would be this: Set up a rain barrel with a
> stock-water float valve at the top. This is similar to a toilet float and
> can be found at farm-supply stores. Attach a garden hose to it and it
> will keep the barrel filled all the time to the level you choose. Then
> install a sump pump in the barrel which feeds the water-soaker pipes on
> the roof. The excess would run off and back into the barrel. You could
> even wire the pump into a thermostat in the attic, so it would only turn
> on when the temperature rises to a certain point. Totally automatic.
>
How about this. Take a large rock weighing a few tons with a hole in the
middle. Put it on a long pole (20ft). Have a cable tied to the rock to a
pulley at the top of the pole then wrapped around a shaft of a generator.
Have a gas operated winch to lift the rock to the top of the pole activated
by a switch at the bottom of the pole and shut off by a switch at the top of
the pole. As the rock falls it turns a generator.
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| JoeSixPack 2005-08-07, 3:21 pm |
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"Nog" <nognog@adelphia.net> wrote in message
news:4uidnYq2jvjsSHLfRVn-1g@adelphia.com...
>
> "JoeSixPack" <olegp@telus.net> wrote in message
> news:LI6He.150546$HI.24361@edtnps84...
> How about this. Take a large rock weighing a few tons with a hole in the
> middle. Put it on a long pole (20ft). Have a cable tied to the rock to a
> pulley at the top of the pole then wrapped around a shaft of a generator.
> Have a gas operated winch to lift the rock to the top of the pole
> activated by a switch at the bottom of the pole and shut off by a switch
> at the top of the pole. As the rock falls it turns a generator.
>
Have another drink pal.
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