3 ms·
Before modern A/C, in some parts of the US they used "swamp coolers", which as I understand it was basically a large box of damp wood chips through which outsid
by HarHarVeryFunny 4y ago
Before modern A/C, in some parts of the US they used "swamp coolers", which as I understand it was basically a large box of damp wood chips through which outside air entered the house. These were a type of evaporative cooler - they work by the heat in the hot air being used to evaporate the water on the wood chips, leaving cooler air which then flowed into the house. No electricity required - just keep the wood chips damp!
- personjerry 4y agoSee https://en.m.wikipedia.org/wiki/Evaporative_cooler https://en.m.wikipedia.org/wiki/Evaporative_cooler for more info
- deleted 4y ago[deleted]
- HarHarVeryFunny 4y agoEvaporative cooling is also used in cooling towers to cool both indoor and outdoor spaces. These are basically a tall hollow tower with hanging fabric inside at the top that is kept wet. Hot air enters at the top, and gets cooled by losing it's heat to evaporate the water; then, with cooler air being more dense, the air "falls" town the inside of the tower and flows out at the bottom cooling the surrounding area. http://www.2030palette.org/evaporative-cooling-towers/ http://www.2030palette.org/evaporative-cooling-towers/