几点钟给电动车充电最合适?

作者:未知 来源:未知 2013-03-30

Some things are best done after dark. Setting off fireworks. Telling scary stories. And charging your plug-in hybrid electric vehicle. Because a new study shows that topping off your car battery at night generates less ozone. The work appears in the journal Environmental Research Letters. [Tammy Thompson et al., "Air quality impacts of plug-in hybrid electric vehicles in Texas: evaluating three battery charging scenarios"]
有些事情在晚上做更好,比如放焰火,讲恐怖故事,以及,给你的混合动力汽车充电。因为一个新的研究表明,在夜间给汽车电池充电可以产生更少的臭氧。这项研究被发表在《环境研究快报》杂志上。 [作者:Tammy Thompson等,《插电式混合动力汽车在得克萨斯州的空气质量影响:评估三种电池充电的情况》]

Plug-in electric hybrids give off less exhaust than gas guzzlers. And when they’re running on battery power, they generate no fumes at all. But there’s a catch. The power plants that make the electricity you use to recharge the battery produce plumes of pollution. But how much ozone gets produced depends on when you reach for that plug.
插电式混合动力汽车比单纯汽油动力汽车的废气排放量更少,尤其是当他们使用电源运行时,完全不会产生废气。但是有一个问题:生产你用来给电池充电的电力的发电厂会产生很多污染气体。而臭氧的排放量取决于什么时候你给你的电池插上充电线。

Electric power plants that burn fossil fuels release hydrocarbons and nitrogen oxides. And when sunlight hits those compounds, ozone forms. At night, however, well, it’s dark. And the compounds disperse in large part before the sun comes up.
通过燃烧矿物发电的火力发电厂会释放碳氢化合物和氮氧化物。而当阳光照射在这些物质上时就会产生臭氧。但如果是夜间,没有阳光,大部分化合物会在天亮前分解掉,从而可以减少臭氧的生成。

Scientists modeled how much ozone would be generated if the cars were charged at three different times: overnight, just before they’re driven or just after. And they found that drawing electricity from the grid after-hours is best. So to drive green, plug in, lay down and get some ozone-free Zs.
科学家们模拟了在三个时间段给汽车充电产生臭氧的差别:夜间、驾驶前以及刚刚驾驶完。他们发现,充电时间在下班后是最佳的。因此,推动绿色出行,你只需要插上插头,躺下,就可以做个环保之梦了。

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