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冰块+食盐,降温效果堪比空调

2017-08-22 08:58:03   中国青年网

空调是度夏的法宝,但也存在一定的缺陷,不仅不节能,长时间待在有空调的环境里,还会得头疼等空调综合症。那有没有既能送来清凉,又绿色环保的消暑妙招?有网友说,冰块加食盐就能做出绿色空调,这是真的吗?

准备物品:风扇、冰块、食盐、泡沫箱子、空塑料瓶

第一步:在泡沫盒子的顶部和侧面挖两个大洞,作为进气口和出气口;

第二步:将空塑料瓶去掉瓶口和瓶底,放入出气口内;

第三步:往泡沫箱子内倒入冰块,再往冰块上撒下食盐;

第四步:将风扇放在盒子顶部的进气口上,按下开关。从出气口吹出来的风十分的凉爽。原来,食盐倒在冰上会改变冰块的分子结构,使得它们的熔点变得更低,融化就需要吸收更多热量,这时候经过冰块处理后吹出来的风,就更加凉快。

本报记者 方月宁

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