160火星探索(2 / 2)

所以由于这种周期性的大沙尘暴的存在,所以太阳能板供能受到的限制会非常大,在哪样恶劣的天气下,不排除新发射的探测车会像机遇号一样,直接停摆。

“咱们对于火星的探索才刚刚起步,不像人家已经发射了好几台火星车了,如果咱们这根独苗苗再停摆的话,那后果不堪设想啊。”王司长忧心忡忡地说道。

“试想一下,我们本身就比别人落后一些,而太阳翼类型的火星车在沙暴中又及其容易停摆,一旦停摆的话我们就需要进行重新设计和发射,这一来一去要耽误多少时间?”

“这些耽误的时间,将会导致我们之间的差距进一步增大,毕竟人家不仅仅比你发射得多,还比你运行时间长,这怎么比…”

“就按照使用寿命来说,祝融号使用一个沙暴周期,按照统计学规律,距离下一次的全球沙暴还有4年多的时间,也就是说它的使用寿命还有4年!”

“乐观一些嘛,没准儿能挺过一次呢,那不就还有10年嘛。”王峰开解道,虽然这话不怎么有说服力就是了。

“但愿吧!”王司长没有反驳,他说这些话的目的也不是为了探讨它能用多久:“但是毅力号的话,额定能源供给达到了14年,差距太大了!”

祝融号是使用非常原始的技术,也就是太阳能板的供电技术;而毅力号则是取消了太阳翼的设计,用一块儿核电池供电,它能够和锂电池系统一起提供900w的峰值供电能力和100瓦的日常供电能力,非常厉害。

它的所有电力来自一台重达 45kg 的核电池。其设计工作寿命长达 14 年,放电功率高达 100 瓦,如此之大的电池,被安放在了毅力号的尾部,像翘起的大尾巴。

别看它其貌不扬,但是却造价不菲,高达7000万美元,换算成RMB的话大概是5个亿,比毛子最新的米格35还要贵!

除了核电池,毅力号上还配备了两个可充锂电池,以满足火星车的峰值需求(NASA表示,在火星车进行科学运算期间,电力需求可以达到900瓦,电池将在用电高峰时为火星车供电)

毅力号核电池效率达到 6.3%,远低于太阳能帆板,但在核电池领域已经算是效率很高的了,而且它散发的热量虽然也会浪费很多,但是却可以起到保温的作用,大大延长其使用寿命。

说到这,该说的王司长已经都说完了,剩下的就要看王峰如何选择了。

“虽然我对于航天这一块并不了解,但是如果涉及到能源,尤其是电化学这一部分,我还是非常愿意尽一下我的绵薄之力的。”

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