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Wilco1
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Re: Small percentage of sales unless ...
Wilco1   12/31/2013 12:12:30 PM
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A fuel cell converts hydrogen+oxygen into water+electricty. Most fuel cells require very pure hydrogen, so you require a very expensive infrastructure to generate, clean, store, and transport the hydrogen. 

Storing hydrogen is fraught with difficulties. Cyrogenic cooling takes a large amount of energy and the hydrogen boils away relatively quickly. Compressing takes less energy but the hydrogen still leaks through the tank... A tank of hydrogen also stores relatively little energy and is very heavy compared to the amount of energy it contains.

All in all it's simply impossible to get the same efficiency as an EV. You also need to use oil/gas to generate the hydrogen as splitting water using electricity is too inefficient. This is why I don't think hydrogen will ever become popular in the future.

Wilco1
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Re: Small percentage of sales unless ...
Wilco1   12/31/2013 11:41:12 AM
Bert, so one statistical curve-fitting paper proves that global warming is a big scam???

Not so fast though - others have already disproven his research half a year ago: http://www.skepticalscience.com/lu-2013-cfcs.html

When something looks too good to be true, it usually is...

 

zewde yeraswork
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other car companies
zewde yeraswork   12/31/2013 9:34:43 AM
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Honda certainly seems to be getting serious about Fuel Cells. Are other car companies following the same path? How long until we see ubiquitous fuel cell-powered cars on the road?

prabhakar_deosthali
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Re: Small percentage of sales unless ...
prabhakar_deosthali   12/31/2013 8:28:06 AM
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@Bert22306

 

You say that Hydrogen infrastructure is required for the FCEVs to become acceptable.

As a dummy in this field, I would like know what is thefunction that Fuel Cell is doing.

Can't we generate hydogen on board?

 

Happy 2014 for all the EEtimes community!

Bert22306
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Small percentage of sales unless ...
Bert22306   12/30/2013 5:57:47 PM
The article ponts out that FEVs will represent a small percentage of auto sales, because the assumption is, I/m sure, that they require a hydrogen disrtribution infrastructure. It wouldn't be the case if they can run directly on gasoline, diesel, and/or biofuel. Still, it's really great to see the automokers working hard at developing the most promising EV technologies, rather than falling back on the tired old battery-powered EV so predictably.

Related to this, I hope people are also paying attention to the U of Waterloo research on global warming. Another body of work that finally runs counter to the popular orthodoxy du jour.

http://www.reuters.com/article/2013/05/30/blame-cfcs-for-warmin-idUSnPNTO244+78+PRN20130530

Plenty more online articles where that came from. It is statistical in nature, but then again, "as opposed to what?" There's hope for the new year.

Happy New Year, EE Times community!

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