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[Futurism]Hydrogen-Powered Trains Are Coming to Germany in 2021

post #1 of 20
Thread Starter 
Quote:
As the shift from diesel engines to clean energy continues, German and French engineering company Alstom have signed a deal that will see the latter building a series of hydrogen-powered trains that will go into service starting in 2021.

Alstom stated it will build 14 emissions-free trains, called Coradia iLint, that can travel 1,000 kilometers (621 miles) on one full hydrogen tank, and can reach a maximum speed of up to 140 km/h (87 mph).

Source
post #2 of 20
Will the exhaust be served to passengers? thinking.gif
post #3 of 20
Thread Starter 
Quote:
Originally Posted by Owari View Post

Will the exhaust be served to passengers? thinking.gif

smil3dbd4e4c2e742.gif
post #4 of 20
You have to produce the hydrogen, so depending on where the energy used is coming from, it might be even worse than a diesel train.
Coulombic efficiency is very high for hydrogen fuel cells so if solar or wind power was used to make hydrogen this could make for a truly green of grid train. (It doesn't say whether they are going to store hydrogen by adsorption or by compressing it the later takes a large chunk of energy that is basically lost)
post #5 of 20
Quote:
Originally Posted by maarten12100 View Post

You have to produce the hydrogen, so depending on where the energy used is coming from, it might be even worse than a diesel train.
Coulombic efficiency is very high for hydrogen fuel cells so if solar or wind power was used to make hydrogen this could make for a truly green of grid train. (It doesn't say whether they are going to store hydrogen by adsorption or by compressing it the later takes a large chunk of energy that is basically lost)
Precisely. Hydrogen is essentially a green energy storage solution.. and certainly not a green energy source.
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post #6 of 20
Quote:
Originally Posted by maarten12100 View Post

You have to produce the hydrogen, so depending on where the energy used is coming from, it might be even worse than a diesel train.
Coulombic efficiency is very high for hydrogen fuel cells so if solar or wind power was used to make hydrogen this could make for a truly green of grid train. (It doesn't say whether they are going to store hydrogen by adsorption or by compressing it the later takes a large chunk of energy that is basically lost)
or just use straight electric, its much more efficient than converting it into hydrogen.
laying down conduction lines overhead would cost a lot, but this would reduce operating expense and divert the limited amount of hydrogen fuel to less ideal transports like buses or planes.
post #7 of 20
Quote:
Originally Posted by maarten12100 View Post

You have to produce the hydrogen, so depending on where the energy used is coming from, it might be even worse than a diesel train.
Coulombic efficiency is very high for hydrogen fuel cells so if solar or wind power was used to make hydrogen this could make for a truly green of grid train. (It doesn't say whether they are going to store hydrogen by adsorption or by compressing it the later takes a large chunk of energy that is basically lost)

Even if grid power isn't green, odds are that burning a fuel to create hydrogen for the train is better than just burning that fuel within the train itself, similar to electric cars and fossil fuel power plants vs gasoline cars disregarding power plants. Not only that, even if it's as bad or worse now, adding more green sources to the grid is an inevitably, while upgrading or retrofitting locomotives is going to be a bit more of a hassle and cost the companies running them a lot more money.

Quote:
Originally Posted by epic1337 View Post

or just use straight electric, its much more efficient than converting it into hydrogen.
laying down conduction lines overhead would cost a lot, but this would reduce operating expense and divert the limited amount of hydrogen fuel to less ideal transports like buses or planes.

Biggest advantage is that these don't need dedicated power, either third rails or overhead lines. A similar but much dirtier example would be a diesel-electric locomotive. In theory they could be powered directly by the grid but that's another aspect of the line to maintain, and with overhead lines you run into height issues (although these should be documented and standardized I'm sure).
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post #8 of 20
Quote:
Originally Posted by CynicalUnicorn View Post

Biggest advantage is that these don't need dedicated power, either third rails or overhead lines. A similar but much dirtier example would be a diesel-electric locomotive. In theory they could be powered directly by the grid but that's another aspect of the line to maintain,
it has it's own pros and cons, though there are beneficial advantage to a direct-grid train, one of which is efficiency.
another is during a runaway situation, they could control it by simply shutting off the power supply, and no hijacker can takeover a powerless train.

Quote:
Originally Posted by CynicalUnicorn View Post

and with overhead lines you run into height issues (although these should be documented and standardized I'm sure).
all trains have height restrictions, the tallest i've seen is two containers stacked atop each other.
https://en.wikipedia.org/wiki/Double-stack_rail_transport

where as the pantograph used can vary based on intended pass-through height, and in the worst case they can build an overpass for cars while the train goes under.
Edited by epic1337 - 11/24/17 at 10:24pm
post #9 of 20
Quote:
Originally Posted by Owari View Post

Will the exhaust be served to passengers? thinking.gif
Considering one of the benefits of drinking spring water is the solution of electrolytes, it wouldn't be a good idea.

At best, you'd end up with a possibly problematic chemical imbalance by the end of a long trip.
    
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post #10 of 20
Quote:
Originally Posted by ToTheSun! View Post

Considering one of the benefits of drinking spring water is the solution of electrolytes, it wouldn't be a good idea.

At best, you'd end up with a possibly problematic chemical imbalance by the end of a long trip.

How much water can you drink in eight hours ?

LoL

dunx

P.S. How is it that the video clearly states 800 Km... and the hyped-up text says 1000 Km ? axesmiley.png
Edited by 2002dunx - 11/25/17 at 3:12am
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