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A fan, in the usual mesh cage, powered by a flexible solar panel, potentially built into the tent fabric (this might qualify as an idea in its own right). When the sun gets up, you don't have to, this fan prevents you getting baked alive in your tent.
These could work
http://www.oksolar.com/pv/flexible.html
Flexible solar cells [RayfordSteele, Oct 04 2004]
[hjennings] US Patent Link
http://www.patentst...atents/6397869.html
Portable camping tent structure with built-in overhead electric fan and power source [jurist, Oct 02 2005]
[hjennings] bio
http://www.harryjennings.org/bio2.html
Inventor of above Tent Fan [jurist, Oct 02 2005]
[link]
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A heat exchanger sits under the logs in the campfire (these exist) and then a radiator is temporarily bolted over the fan. |
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Apparently Kreuner lives in a tent year-round. Or an igloo? |
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In winter you reverse the fans to blow warmer air down, just like a ceiling fan. |
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This could also assist to keep the tent inflated, giving you more room in the tent. |
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If you don't want to use a solar cell you could always use (gasp) a battery. Maybe a small steam engine for the fire? |
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He's from Chicago? Dearborn? Michigan? All of those are a bloody lot colder than the Low Countries, in winter, IIRC? |
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Already been done! Powered by either batteries or solar power is possible. But a plastic fan case lined with 4 D batteries on each side (8 x 1.5v for a 12v fan) and it lasts for the weekend. |
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