世纪失败品 氢能源车

ralphk

刚才查了一下，氢燃料汽车应该会产生氮氧化合物。燃烧的高温高压会使氮气和氧气产生反应，生成NO and NO2.

Nitrogen and oxygen are present in the ambient air, which means they’re present in the air-fuel mixture combusted in all gasoline and diesel engines. During combustion, these elements combine to form NOx. It’s not possible to design an internal combustion engine that does not produce NOx when it burns fuel.

Nitrogen oxides have harmful direct effects on human health, and indirect effects through the damage they do to agricultural crops and ecosystems.

limaaa

一司机 发表于 2023-12-18 14:16
万一中国又出了两个像宁德时代和BYD这种公司干氢气呢？  咱们价格破壁机名号不是随便混来的 ...

和某为一样享受巨额补贴，搞垮西方汽车工业为己任。狂吹遥遥领先带崩股市：飞流直下三千点 ......
澳洲大街上 BYD、MG、长城、奇瑞 ...... 铺天盖地，牛！

limaaa

室温超导都能小作文，氢能为啥不可以？

kaiak

ralphk 发表于 2023-12-18 22:41
刚才查了一下，氢燃料汽车应该会产生氮氧化合物。燃烧的高温高压会使氮气和氧气产生反应，生成NO and NO2.
...

这个说的是氢内燃车, 不是氢燃料电池车.

氢能汽车中的氢内燃机汽车(Hydrogen internal combustion engine vehicle, HICEV)是以内燃机燃烧氢气（通常透过分解甲烷或电解水取得）产生动力推动汽车。

氢燃料电池车(Fuel cell vehicle-FCEV)是使氢或含氢物质与空气中的氧在燃料电池中反应产生电力推动电动机，由电动机推动车辆。

现在主要方向 氢cell的电动车.

点火烧氢气技术基本废弃了.

ralphk

kaiak 发表于 2023-12-19 12:21
这个说的是氢内燃车, 不是氢燃料电池车.

氢能汽车中的氢内燃机汽车(Hydrogen internal combustion engin ...

我查了一下，感觉语焉不详。

“使氢或含氢物质与空气中的氧在燃料电池中‘反应’”

这个“反应”是燃烧吗？

https://afdc.energy.gov/vehicles ... -electric-cars-work

leon3758

当年澳洲力推的LPG, 现在如何?

kaiak

ralphk 发表于 2023-12-19 13:37
我查了一下，感觉语焉不详。

“使氢或含氢物质与空气中的氧在燃料电池中‘反应’”

就理解成 电解水成氢氧, 在燃料电池里面进行 逆向反应.

ralphk

kaiak 发表于 2023-12-19 14:55
就理解成 电解水成氢氧, 在燃料电池里面进行 逆向反应.

学习学习。

我刚才又查了一下wikipeidia 关于fuel cell electric vehicle (FCEV). 最起码以现在的技术环保效果一般吧。

The environmental impact of fuel cell vehicles depends on the primary energy with which the hydrogen was produced. Fuel cell vehicles are only environmentally benign when the hydrogen was produced with renewable energy. If this is the case fuel cell cars may be cleaner and more efficient than fossil fuel cars. However, they are not as efficient as battery electric vehicles which consume much less energy. Usually a fuel cell car consumes 2.4 times more energy than a battery electric car, because electrolysis and storage of hydrogen is much less efficient than using electricity to directly load a battery. In addition, a 2023 study by the Centre for International Climate and Environmental Research (CICERO) estimated that leaked hydrogen has a global warming effect 11.6 times stronger than CO₂.

氢气本身也有非常强的温室效果

kaiak

ralphk 发表于 2023-12-19 14:07
学习学习。

我刚才又查了一下wikipeidia 关于fuel cell electric vehicle (FCEV). 最起码以现在的技术环 ...

现在看 ,最大优点是补能快 ,和燃油车速度差不多. 电池车痛点也是补能太慢.

其实现在全世界 电能,效率不是很重要 ,很多电能都被丢弃了 ,
如果电网正真能做到供需平衡和匹配 ,现在全球发电量是实际需要的4倍.