我们现在有了天和核心舱,两边的是梦天和问天两个实验舱。后边是天舟货运飞船,前边是神舟飞船。其实神州飞船可以接两艘,这样可以交接班。中间这个节点舱还可以建档气闸舱用,这样的话,利用率比国际空间站高多了。我们现在用的太阳能电池也比国际空间站的效率高。天宫两部大型太阳能柔性电池翼应用了“三结砷化镓电池”,可以达到30%的转化率,两部电池翼加上核心舱电池翼发电功率可达100千瓦以上。国际空间站的太阳能电池板效率只有15%,这么多年也有老化,那就相差更多了。我们的空间站基本上属于第三代,但是我们也有桁架结构,太阳能电池板日后会装到空间站两端的桁架上,反正都是柔性的,张开太阳能板就像是船上挂缆升帆一样。我们发现,国际空间站与不少巨大的散热片,因为太空里没有空气帮助散热,散热反而成了难题,只能靠热辐射散发出去。我们的空间站并不需要专门的散热装置,可见对能源的管理已经是超过了国际空间站,毕竟我们是有后发优势的……
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