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氢能动力车介绍

2022-10-18 13:47

氢能动力车的能源来自氢气,氢能汽车有两种使用氢气的方式。一种是利用内燃机燃烧氢气产生动力来驱动车辆。这种形式会导致氢燃料迅速耗尽和电池寿命变差。

另一个是现在普遍使用的氢燃料电池汽车。这类车辆以车内氢气和空气中的氧气为原料反应生成电池,车辆以电力为动力。其实这种氢能动力车本质上也是电动汽车,只是汽车的动力源是氢氧反应,而不是车内自带的电池。这种车辆中的发电机将氢的化学能转化为机械能,或者通过在内燃机中燃烧氢,或者通过在燃料电池中使氧与氢反应来驱动电动机。 广泛使用氢来燃料运输是拟议氢经济的关键要素。

内燃机动力

c48ff4e0-20a1-4373-b18d-178f06e1d059.jpg

氢内燃机汽车不同于氢燃料电池汽车。 氢 ICE 是传统汽油 ICE 的略微修改版本。 氢气内燃直接燃烧氢气,不使用其他燃料,也不产生水蒸气排放。 这些汽车的问题在于氢燃料很快耗尽。 一个装满氢气的罐子只能行驶几英里,很快就会耗尽能量。 另一方面,正在研究各种方法来减少空间消耗,例如使用液态氢或氢化物。

氢能动力车的优劣势是什么?

氢能源汽车有很多优点。首先是清洁干净,氢气燃烧生成水,不会污染环境。目前,主流锂电池电动汽车在电池企业生产管理过程中仍会产生大量环境污染。

同时,电源众多,我国主流电站仍以火力发电为主。在发电发展过程中,仍会排放企业大量污染物。相比之下,氢动力汽车零排放,在某种程度上是清洁能源。

氢气与氧气发生化学反应生成水

其次,氢燃料汽车加注速度快。电动汽车分为快充、慢充和充电站,但即使是充电站也需要一个多小时才能充满。氢能源汽车则不同,加氢过程没有什么不同,5-8分钟,氢能源汽车就可以满载上路。此外,氢能能量进行密度高,电池使用寿命有保障。例如,去年国内氢燃料汽车 Grove 的续航里程已超过 1000 公里。与今天的主流电动汽车相比,也可以说是差距很大。

既然氢能汽车有这么多优势,为什么现在市面上主流的新能源发展汽车企业都是通过电动汽车呢?这不得不提到安全和成本问题。

氢气的物理化学性质决定了氢气的危险性。虽然没有证据表明它比汽油更危险,但车载氢供应系统的标准远高于油轮。

 

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