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冰本身可以防霜冻?环保且成本低

kira86 于2018-10-10发布 l 已有人阅读

冰.jpg
Antifreeze Surface Fights Ice with Ice

防冻表面以冰攻冰 便可再不结冰?

Every year, 20 million tons of salt are dumped on roads and highways across the U.S. to eliminate ice. And airlines spray up to 1,000 gallons of antifreeze on any one plane to de-ice it. But now scientists have come up with what might be a more environmentally friendly alternative.

每年为了防止路面结冰,2000万吨盐被撒在美国各地的公路或高速公路上。而肮空公司在每架飞机上喷洒1000多加仑防冻剂,只为防止飞机机身结冰。但如今,科学家们已经想出了一个更环保的替代方案。

We've often heard the expression, 'It's time to fight fire with fire.' Well I think now it's time to fight ice with ice. Jonathan Boreyko studies fluid mechanics at Virginia Tech.

“我们经常听到‘是时侯以毒攻毒了’这个说法。好吧,我认为现在也是时侯以冰攻冰了。”在弗吉尼亚理工学院研究流体力学的乔纳森·博雷科表示到。

And what he means by that is: if ice growth is inevitable, why not design certain areas of plane wings or roads or HVAC systems specifically to attract ice…to control the chaos, and keep ice-forming moisture away from the rest of the surface? Use ice itself…as antifreeze?

他的意思是:如果结冰无法避免,那为何不将飞机机翼、飞机跑道或者暖通空调系统的某些区域专门设计来吸引冰以掌控局面,并让其余表面不结冰呢?利用冰本身作为防冻剂?

To test the idea, he and his team used lasers to cut tiny grooves into aluminum surfaces. Those grooves, once filled with water and frozen, turned into tiny stripes of ice, which indeed kept the rest of the surface 80 to 90 percent frost-free, even in incredibly humid cold air.

为了验证这个想法,他和他的团队用激光在铝材表面切割出小小的凹槽。这些凹槽一旦装满水,然后结冰,就会变成小小的冰层,这真的能让其余80%到90%的表面不再结霜,哪怕是在极其湿冷的空气中也能避免结霜。

What's happening is the ice striped areas are just so attractive to the moisture, that it kind of tractor beams all the moisture that's going to the surface towards the striped regions preferentially, such that the intermediate areas, if you design it right, just stay completely dry.

“事实上,冰槽条纹区对于水分是如此的具有吸引力,以至于它就仿佛牵引光束一般,使得所有湿气都优先向条纹区域流动。作为如此这般的媒介区域,如果你设计到位,那么(其余表面)真的可以保持完全干燥。”

You can find results and some cool time-lapse videos in the journal ACS Applied Materials & Interfaces.

研究结果以及一些酷酷的缩时录影视频都发布在美国化学学会《应用材料与界面》杂志上。

Boreyko and his team have already patented the tech. If it proves viable after more R&D, it might make our wintertime fight against frost a lot more environmentally friendly.

博雷科和他的团队已经对这项技术申请了专利。如果经过更多研发证明,这个方案可行的话,那么它可能使得我们可以在冬天通过更环保的方式来防止霜冻。

(小e英语Jewel翻译,欢迎捉虫!)

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