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第173章 核反应堆??(2 / 2)

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“可为什么它之前没问题,反而现在发生核反应了?你这也解释不通啊。”专家疑惑的问道。

“我可以解释!之所以怀疑是铀235还有一个很重要的因素。”

“铀235想要发生核反应,就需要中子慢化剂,大部分情况下用的都是石墨,但不代表只能用石墨。”

“其实想让铀235裂变非常简单,只要有水!就OK!很多核反应堆都建在水下面,为的什么?一方面可以帮助铀发生裂变,另一方面能帮忙冷却的作用。”

说到这里,方阳看向胖子:“我记得你之前说过,这地方出现过水管泄漏,流了不少水吧?”

“是的!”胖子立马点头。

专家脸色唰的一下彻底变了:“这这..”

方阳平静的开口道:“现在你应该明白为什么之前没有发生反应了吧。”

“我可以肯定,下面的铀235埋的比较深,只是因为最近流入了不少地下水,所以产生了核裂变。”

“之所以温度这么高,就是因为铀元素在发生衰变的过程中,会释放出中子。”

“这些中子在形成后,会继续撞击其它铀元素,从而形成链式反应,有点像几何的乘法。”

“当一个中子撞向铀235的时候,就会短暂的形成铀236,铀236迅速分裂并释放热量,同时再产生两个中子。”

“这三个中子在经过水的慢化之后,会大幅度的提升铀235的反应截面,从而发生一生二,二变8,8变32,32变100,甚至1000多,以此往复循环,在极短的时间里快速裂变,产生大量的能量。”

“当然,这种裂变是核武器那种高浓缩铀的裂变方式,想象一下,一个煤气罐,在一瞬间冲进了相当于一整个大湖的能量,它的爆炸会有多恐怖?”

“而低浓缩铀的分裂速度相对要慢很多,在分裂的过程中,也会产生大量的热量,利用这个热量去烧水,产生大量蒸汽,然后再用蒸汽推动机器,就是核动力航母和潜艇的运行原理。”

“一艘普通的非核动力航母,光是烧水,就要烧48小时才能把动力续满,而核动力只需要4小时,可见核动力的能量有多大。”

听完方阳的科普,所有人都惊呆了。

胖子人傻了,眼珠子都要瞪了出来。

开什么玩笑?

本以为是闹鬼,再不济也就是一些小问题。

可现在变成了啥?

小区地下车库有个核反应堆?

这要是说出去,一个个不得吓疯啊?

天天住在上面,这要是让他继续裂变下去,万一哪天突然炸了。

这就搞笑了!!

说难听点的,他们整个小区的人就像是生活在核弹上面,随时可能升天的那种。

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