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iluvtennis

(19,849 posts)
Mon Feb 18, 2019, 03:46 AM Feb 2019

Germany is using the world's first hydrogen-powered train which emits nothing but water and steam


@bjcreigh, 15h15 hours ago

Germany is using the world's first hydrogen-powered train which emits nothing but water and steam.

Meanwhile the US trusts a septuagenarian real estate developer’s “gut” over elitist, egghead climatologists and tries to prop up the black lung industry.
Mike Hudema





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Excellent. US needs to follow the lead of Germany. Create some infrastructure jobs to do this, retrain the coal & steel workers
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Germany is using the world's first hydrogen-powered train which emits nothing but water and steam (Original Post) iluvtennis Feb 2019 OP
Fascinating GeoWilliam750 Feb 2019 #1
Germany A hot bed of great concepts and engineering Thekaspervote Feb 2019 #2
This message was self-deleted by its author trusty elf Feb 2019 #3
How are they producing the hydrogen? honest.abe Feb 2019 #4
But the US is building a WALL! Let's hear it for 10,000-year-old ideas! Beartracks Feb 2019 #5
A quick search shows this to be driven by fuel cells... TreasonousBastard Feb 2019 #6
Has trump declared another National Emergency yet? duforsure Feb 2019 #7
Not a real great plan jmowreader Feb 2019 #8
What's the efficiency of the hydrogen generation MineralMan Feb 2019 #9
Yet another diversion by the fossil fuel industry... hunter Feb 2019 #10
The Germans have a sketchy history with hydrogen-based transportation. Aristus Feb 2019 #11
Argh! You beat me to it Codeine Feb 2019 #12

Response to iluvtennis (Original post)

honest.abe

(8,677 posts)
4. How are they producing the hydrogen?
Mon Feb 18, 2019, 04:45 AM
Feb 2019

There is no such thing as naturally occurring pure hydrogen. It takes energy to produce it so depending on the energy source this may not be as good as it sounds. Perhaps they are using solar energy to produce it. That would be the ideal solution.

TreasonousBastard

(43,049 posts)
6. A quick search shows this to be driven by fuel cells...
Mon Feb 18, 2019, 05:49 AM
Feb 2019

not "burning" hydrogen. Makes sense, but you still have to produce hydrogen and oxygen for the things to work. That's getting cheaper and easier, and they can now use oxygen from the air. (Used to need "purified" oxygen)

Fuel cells are being used all over, and when hydrogen gets even cheaper to produce, will run your cars, trucks, and buses. Right now, Mercedes and Honda will gladly sell or lease you a car. Toyota and Hyundai have them in the works, too. BMW has one somewhere, and Volkswagen is gambling on electrifying, one way or another, the whole fleet.

duforsure

(11,885 posts)
7. Has trump declared another National Emergency yet?
Mon Feb 18, 2019, 07:39 AM
Feb 2019

Changing all our trains back over to coal? Everyone is moving towards clean fuels , while trump and his buddies are resisting it all , and trying to pollute for profits instead.

jmowreader

(50,554 posts)
8. Not a real great plan
Mon Feb 18, 2019, 01:21 PM
Feb 2019

Hydrogen takes a lot of energy to make, regardless of how you make it (there are three routes: steam reforming methane, electrolyzing water to make hydrogen and oxygen, and electrolyzing brine to make lye, chlorine and hydrogen). The train has a fuel cell to make electricity from hydrogen, and there’s an electric line above the track...why not cut out the expensive middleman and just run the train from that line?

If you want a hydrogen transportation solution, do a city bus...those you can drive anywhere you want.

MineralMan

(146,286 posts)
9. What's the efficiency of the hydrogen generation
Mon Feb 18, 2019, 01:48 PM
Feb 2019

system that's being used. It takes lots of energy to produce hydrogen. Where is that energy coming from? Hmm....

hunter

(38,310 posts)
10. Yet another diversion by the fossil fuel industry...
Mon Feb 18, 2019, 01:49 PM
Feb 2019

Hydrogen is a squirrelly, impractical fuel for anything but the upper stages of space vehicles.

The least expensive source of hydrogen is natural gas.

The fossil fuel industry is having a tough time dealing with the fact their fuel distribution networks are not needed for electric vehicles.

Any ordinary electric train, trolley, subway, or bus is powered by whatever solar and wind energy is available from the electric grid.



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