Speaker: Adam Grossert
Key words:冰箱
Abstract:TED演講者Adam Grosser的項目是關于建造一種不需使用電的冰箱呆细,并利用它把重要的需要冷藏的醫(yī)療物品運往世界各地的村莊和診所。
Content:
Prototype:IcyBall
IcyBall was a name given to two early refrigerators, one made by Australian Sir Edward Hallstrom in 1923, and the other design patented by David Forbes Keith of Toronto, Ontario, Canada (filed 1927, granted 1929), and manufactured by American Powel Crosley Jr., who bought the rights to the device. Both devices were unusual in design in that they did not require the use of electricity for cooling. They ran for a day on 2 hours of sunlight, allowing rural users lacking electricity to utilise the benefits of refrigeration. @wiki
Icyball 這是個絕妙的想法 但我會告訴大家為什么沒有成功 先解析一下運作原理 這里有兩個半球體块差,中間有一定的距離或颊。一個裝有工作介質(zhì)屿良,含水和氨析二。 另一個是冷凝器 當你將一側加熱時咱揍,熱的這一側 氨開始蒸發(fā) 然后它會在另一側重新凝固 之后讓它降到室溫 當氨重新蒸發(fā)時會與水結合 回到先前的熱的一側,它會產(chǎn)生很強大的制冷效果。
演講者的突破:低壓力下運行惊科,無毒的制冷劑
Comment:
主要原理是利用制冷劑的兩個特性:1拍摇、制冷劑蒸發(fā)時帶走大量熱量 2、制冷劑蒸發(fā)的動力來源于氣態(tài)的制冷劑被另外的液體吸收溶解馆截,所以稱這種制冷劑為gas-absorption refrigerator充活。
![](https://pi.tedcdn.com/r/pe.tedcdn.com/images/ted/46259_480x360.jpg?)
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