第三百五十四章 蒸汽机车
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薛凤祚刚被绑架过来的时候，心里还有些不能接受。龙腾小说ltxsba.com但是他来到这里，看到这里巧夺天工的机械设备，精良的实验设备，作为一名科学家的他一下就忘记了被绑架的不快。更加上天地会特工确实有能耐，把薛凤祚的家人都给接来了，于是他一心扑到蒸汽机上。
薛凤祚的学生梅文鼎也是一样，看到了实验设备，就好像看到世界上最珍奇的宝贝一样，他把这些实验设备看得比自己的生命还重要。
王新宇这里本来就有宋应星、戴仓、徐正明等一批科学家，又有了薛凤祚和梅文鼎，就是如虎添翼，在蒸汽机的研制方面取得了很大的进展。
“这台蒸汽机，功率有多大呢？折合多少马力？”王新宇问道。
计算蒸汽机功率的办法，也是王新宇想出的，早在研制蒸汽机之前，王新宇就建议过，造好一台蒸汽机，就用蒸汽机接上抽水机抽水，在一分钟内可以抽多少水上来。然后再用马拉着转盘带动抽水机抽水，看一台蒸汽机抽水的效率相当于多少匹马，就得出了蒸汽机的功率为多少马力。
其实这个马力单位还是很不准的，每匹马的力量都不一样，所以在有瓦这个单位和马力的标准转换之前，蒸汽机的马粱能是大致的估计。
薛凤祚说了一句：“我们用抽水机测试过了，这台蒸汽机大约两匹半马力。”
二点五马力的蒸汽机，功率是太低了，不说和后来的前进型蒸汽机车那接近三千马力的强大动力相比了，就算是清末非常落后的先导号蒸汽机车，六个人就能抬起来的一种型简陋的蒸汽机车，功率都有十几匹马力。
而这台蒸汽机，明显重量超过了真实历史上后来的先导号蒸汽机车了，功率却只有先导号蒸汽机车的几分之一。
这台蒸汽机车的外形不是先导号那种最简陋的外形，而是带有驾驶室和煤水车的，从外形上来看还是比较拉风的，很像后世的蒸汽机车，不过仅仅是锅炉重量，肯定超过英国人制造的那些简陋的蒸汽机车。
事实上，早在十七世纪中期，也就是这个年代，就已经有人提出了利用蒸汽来驱动车辆和船的理论了，只是当年根本没有往复式蒸汽机的概念。
因为王新宇的到来，虽然他只是提供了往复式蒸汽机的草图，其他的都是由这些科学家自己来研制，可是就这样一个往复式蒸汽机的概念，就让人类少走了几十年的弯路1接就上到了正道上面去，所以说蒸汽机提前问世根本不奇怪。
“这车重量有多重？”王新宇看了看这台蒸汽机车问道。
薛凤祚回答道：“不算煤水车的话，蒸汽机车重为五千斤；加上煤水车，七千斤；后面拉着一节车厢空车重一千八百斤，可以载重四千斤。”
明的斤比较重一点，折算成吨，这台蒸汽机车连同后面拉的车厢共有七吨重，还是比不上目前在琼州运行的轨道车重』过这台蒸汽机车的速度肯定会比轨道车快多了。于是王新宇说道：“那就上来试一下能跑多快。”
薛凤祚说道：“速度是没问题，不负重的话一个时辰可以跑八十里。若是负重，一个时辰可以跑六十里。只是可靠性太差，跑一会儿就偷了。”
这样的速度也就是一斜十五公里到二十公里，按照真实历史上世界上第一台蒸汽机车的数据来看，这个速度是正常的，目前的技术水平还是很低，不可能要求太高。
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