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In the winter, in order to keep the heat in, a building has to be sealed quite tightly. This means that the building is full of circulating air, and that there is very little ventilation making it "stuffy". This often evokes a minor feeling of suffocation and irritability in some people. The introduction
of fresh air from the outside would greatly releave this, but would waste heat.
A Winterized Pressure Window would solve this issue. This window responds to changes in atmospheric pressure associated with temperature. It consists of several hinged panes of glass. The outer pane of glass opens into the cold low pressure atmosphere letting air into the first section. The second pain of glass is levered to this first and thus remains shut.
As heat from the inside of the house exchanges with the cold air reducing the equalizing temperature pressure, the inside pane opens shutting the outside pane, allowing the now subtantially warmer air into a third section.
The third section of lower pressure air warms to a point where it equalizes with the house temperature and the final inside pane introduces the air to the inner environ.
[link]
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You can make more panes if necessary, as well. It would be quite a sight to see all these pieces of glass slowly leaching volumes of air from the great outdoors, waving up and down all slowlike. [+] |
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So, the idea is a sort of "airlock for air",
where air is held in consecutive
chambers until it has warmed enough
to be let into the warm room? |
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I think this would fail, but it would fail
ingeniously. Overall, you're just taking
cold air into the building, and
somewhere along the way you have to
let warm air out (else it'll all explode).
Doing it gradually doesn't really help. |
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A better plan would be to have a
countercurrent heat exchanger, so that
outgoing warm air gave up its warmth
to incoming cold air. I suspect you
could do this by having really tall
(several-story-tall) three-pane
windows. Hot indoor-air would be
allowed to rise upward through the
inner-most air-gap, and be vented to
the outside at the top. Meanwhile, cold
outdoor-air would be allowed to travel
down through the outer-most air-gap,
before being allowed into the building
at the bottom.
The two streams of air would exchange
heat as they passed eachother, for
minimal net energy loss. |
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Instead of responding to //atmospheric pressure associated with temperature// why not respond directly to the temperature of the air masses, with thermostats and a microcontroller, or shape memory alloy hinges? |
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I was hoping the energy differential alone would facilitate the process. |
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