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“国精品产品ᅳ区二区三区”-环球时报

戈壁荒漠里,11国精品产品ᅳ区二区三区960朵“向日葵”在追太阳

来源: 油圈网
2024-12-09 14:54:09

最佳回答

“国精品产品ᅳ区二区三区”戈壁荒漠里,11国精品产品ᅳ区二区三区960朵“向日葵”在追太阳

  河西国精品产品ᅳ区二区三区走廊最西端的酒泉市阿克塞国精品产品ᅳ区二区三区县,国内在建单机规模最大的塔式光热项目近期并网发电。什么是塔式光热,它是如何利用太阳光发电的?一起来看。

  甘肃省最西端的阿克塞县的戈壁滩上,海拔近三千米,气温零下15℃。在这里有一大片镜子花园。这些大镜子有一个专业名字叫定日镜,它们就像开在戈壁滩上的“向日葵”,可以自由转动,追逐太阳光。“向日葵”一共有11960个,总占地面积达到了58万平方米,相当于81个标准足球场。

国精品产品ᅳ区二区三区

  在戈壁荒漠中,这些“向日葵”如何能够发电?其中有一个耸立的高塔,叫做吸热塔。塔高达180米,相当于一个60层高的住宅楼。塔内管道里面装的是熔盐的液体,一共有两万一千多吨。这一万多朵“向日葵”镜子和这些熔盐要在阳光的作用下发生一段奇妙的反应,最终产生电。而最为奇特的是,这些电并不仅仅是在白天产生,还可以在夜晚发出。

  大型熔盐“充电宝” 夜晚发电8小时

  当太阳出来时,这些“向日葵”将实时跟踪太阳光,将太阳光反射到吸热塔顶部,将熔盐加热到将近600℃,这些高温熔盐将输送到旁边的熔盐罐里储存。需要发电时,再利用这些高温熔盐加热水产生水蒸气,最终通过蒸汽轮发电机进行发电。这样一个熔盐罐,就相当于一个大型充电宝。当夜晚没有阳光时,仍然能够持续发电8个小时,相当于可以解决四百多户中国普通家庭一年的用电量。

  为什么要在这里建造一个可以在夜晚发电的绿色能源工程?

  首先,这里地处荒漠,日照强烈,光资源丰富。

  其次,光伏发电、风电都需要太阳光和风力,有光和风时才能有电力输出,并不稳定。有了这样一个大型“熔盐”充电宝,可以与光伏和风电形成互补,保障电力源源不断不分昼夜地稳定输出。

  超级定日镜 反射率达94%

  定日镜由十面三角镜和一个小五角镜组成。这面镜子的反射率高达94%,而我们普通的生活用镜反射率只有70%左右。反射率高,就可以更好利用太阳光。

  另外,这十面三角镜其实角度各不相同,整体组成了一个略有凹陷的凹面镜,可以反射十道光。也就是说,当所有定日镜启动时,会有超过十万道光汇聚到吸热器上,形成一万多个光点。(央视新闻客户端)

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