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第1081章 蒸汽机原理!(2 / 2)

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庆修也不废话,只是命令人当场从里面取出热水,放在壶中,以煤炭架起炉子烤灼。

煤炭的热能极高,再加上这壶中的水本身就是开水,稍一加热,很快就开始沸腾。

那水沸腾起来,白色的蒸汽从壶盖儿滚滚涌出,穿过缝隙时还发出了吱吱的叫声,连壶盖都被顶的上下震颤。

但是众人此刻注意力完全都在那一炉燃烧的煤炭上,李二看的最是聚精会神,但他也没看出来个所以然。

“这东西就是把壶水烧开了,除此之外也并无其他亮眼啊。”

“我看也是,好像真没什么特别的,而且我家中也常常烧煤炭。”

“这东西到底是怎么带动曲柄转的?”

诸位大臣横竖就是看不出门道来,就连李二都一脸不解。

本来李二还想请庆修为他们解答,可始终是一言不发的房玄龄却忽然开口:

“各位,可能我们搞错重点了,庆国公想让咱们看的,未必是那煤炭怎么烧起来的。”

李二见他似乎看出来了点门道,便问:“爱卿有什么看法。”

“微臣也说不上有什么看法,只是觉得……”

房玄龄皱着眉头看一会,“陛下您看,这炉火烧得正旺,可这火苗也推不动任何东西,只能不断发热。”

“那水被烧开,也沸腾的紧,时不时把水烧开,然后在水沸腾滚动时,像水车利用水势一样,把沸水滚动的势也利用起来。”

庆修本来还以为他能猜出来这蒸汽机的原理,却没想到他推测的过程是对的,结果却错了。

庆修着实有些哭笑不得,不过想来也是, 他们看习惯了水车,自然也会下意识的把这些运作原理都往水车的运作上想。

“很接近了,可惜房大人还是猜错了,如果只是用沸水的力量去推动,效率太低,而且力道也太小!”

庆修示意各位大臣凑上前查看。

贴近时,他们才看清楚水流虽然沸腾,但是根本没有接触到壶盖,只有不断升腾而起的沸水热气在顶动壶盖。

“原来是这样!”

众人恍然大悟,不过想来也是,他们平日里也确实见到过水蒸气把壶盖顶起来。

但就算见过,他们也未必能把这方面联系到一起,毕竟谁也不认为这么小的推力能起到任何作用。

“就凭这个?”

李二万分不解,“这水就算烧的沸腾起来,他又能有多少力?”

“陛下说的极是,仅仅只有一壶水烧出来的蒸汽,只能推动一个壶盖,可如果把这水的量在提升数百倍,近千倍,那产生的推力如何?”

庆修这句话还真把李二给问住了。

“换言之,陛下应该也知道,骑马奔驰到极快时,迎面吹来的风推力也能将人推翻,水滴石穿,聚沙成塔,水蒸气也同样是如此。”

庆修一面说着,同时命令人打开气缸的盖子,里面顿时喷涌起漫天的白色蒸汽,热流也扑面而来!

庆修示意李二站在高处看,后者则踩着梯子站到最高,在这高度他能一览无余的看到气缸里面的一切景象。

他看到里面水流滚热沸腾,不断生成燥热的蒸汽向上涌动!

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