General > General Technical Chat

EV-based road transportation is not viable

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Marco:

--- Quote from: SiliconWizard on February 20, 2023, 09:22:59 pm ---Gasoline does burn pretty easily, but diesel fuel is actually very hard to set on fire at least in normal conditions.

--- End quote ---

Train crashes are pretty violent.

As long as it just burns and doesn't explode, a hydrogen fire might be preferable to a diesel spill too.

nctnico:

--- Quote from: tggzzz on February 20, 2023, 05:15:19 pm ---
--- Quote from: tom66 on February 20, 2023, 04:56:22 pm ---Also I would have thought if hydrogen did have an application then train power would be a pretty good one - size of batteries vs a large hydrogen tank in place of diesel engine - but tank then needs to be sufficient to run for at least a significant part of the journey if the assumption is refilling hydrogen at a train station is not safe enough or too inconvenient.  (Diesel trains aren't refuelled at stations, either.)

--- End quote ---

Liquid hydrogen being transported on trains through towns?

--- End quote ---
Again: hydrogen isn't transported in liquid form. Only in gas form under high pressure. But it is not unsafer compared to any other fuel as it will also require oxygen to burn.

I see people mentioning the Hindenburg: if you read a bit more about that accident you'll learn that the outer hull was made from extremely flammable material. Like a piece of cloth drenched in gasoline. It is not the hydrogen that caught fire, but the outer hull.

There is so much nitwitting going around. Last week I watched a documentary about Chernobyl. One of the interesting conclusions was that the huge increase of life threatening cancers (as predicted by Greenpeace et al) didn't happen.

TimFox:
One theory about the Hindenburg's construction is that the outer coating was actually thermite--incredibly flammable.

tautech:

--- Quote from: SiliconWizard on February 20, 2023, 09:22:59 pm ---
--- Quote from: Marco on February 20, 2023, 05:22:39 pm ---Diesel burns too, I doubt people would care that much. They're used to it.

--- End quote ---

Gasoline does burn pretty easily, but diesel fuel is actually very hard to set on fire at least in normal conditions.

--- End quote ---
You certainly don't want to mix it with some fertilizers !  :scared:

TimFox:
Nitromethane ("nitro" fuel at drag races) and ammonium nitrate fertilizer is used commercially as a high explosive, and was the explosive used in the Oklahoma City bombing in 1995.
Fuel oil is often used for legitimate high-explosive mixtures.

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