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Captain Hybrid

Slideshow: Toyota Moves Closer to Fuel Cell Production Car

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j-allen
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Fuel cell car
j-allen   5/3/2014 3:49:20 PM
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Let's think quantitatively here.  First of all, hydrogen doesn't squirt out of a hole in the ground.  We have to make it either by stripping a hydrocarbon fuel, or by electrolysis of water.  In the former case, the carbon component is generally released as CO2, and the amount of hydrogen energy is considerably less than one would get by simply burning the original fuel in an engine. 

With electrolysis, the round-trip efficiency from electricity to hydrogen and back to electricity is less than 40% if you are lucky.  (Even an ordinary lead battery is good for 85%.)  Hydrogen is great for welding, filling buoyant balloons, and talking in a funny voice, but not for propelling automobiles. 

bpenfold
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Gold
Slideshow
bpenfold   5/2/2014 9:24:51 AM
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Why did I get this old article email again?

Battar
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Platinum
Three steps back
Battar   2/11/2014 2:44:57 PM
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"...Refuelling in 3 minutes at 10,000psi..." 

I would take 3 steps back from the car while refuelling is in process. That is, if I can find anyone willing to pay the insurance premiums demanded for storing hydrogen at 10,000 psi on the premesis.

Elizabeth M
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Blogger
Re: Nice-looking car
Elizabeth M   1/28/2014 11:54:49 AM
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Well I guess that is a noble goal. I just feel like cost shouldn´t be an issue at this stage of the game but apparently, as you say, it still is. Hopefully this problem will be solved soon.

CharlesM
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Silver
Re: Nice-looking car
CharlesM   1/27/2014 10:43:22 AM
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Fuel cell cars are essentially pure EVs, except instead of having an imperfect battery there is a small chemical plant to convert hydrogen to electricity. The infrastructure problem of lacking hydrogen fuel stations is much worse than the lack of EV charging stations for EVs and there's the question of where the hydrogen comes from. Using clean renewables to produce hydrogen is extremely inefficient, energy intensive, and therefore expensive. Using fossil fuels to do so cancels out the reasons for having FCVs in the first place.

If a breakthrough to cheap, clean, and sustainably produced hydrogen occurs (and before EV batteries become practical for the mainstream) and these little chemical factories (fuel cells) can be made reliable, safe, and affordable (a huge order), then someone please wake me up then.

Charles Murray
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Re: Nice-looking car
Charles Murray   1/15/2014 8:57:02 PM
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Liz, the issue has been, and continues to be, cost. I believe the infrastructure would eventually spring up if the cost model were right. That hasn't happened, though, because the cost is still too high. One industry analyst recently told me that the unspoken goal in the auto industry is to get the vehicle cost below $50K.

NadineJ
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Platinum
Re: Road Test
NadineJ   12/24/2013 1:00:45 AM
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The "guilt free" status symbol trend has been around for a while now.  Companies like Tesla exist because of it.  Celebrities like Woody Harrelson and brands like Nudie Jeans paved the way.

And, agreed, it's a good looking car.

bdcst
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Re: Nice-looking car
bdcst   12/19/2013 12:06:10 PM
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Most electrics get less than 300 miles per charge.  While a half hour charge might be fine for daily commutes, it's way too long for serious travel even with pit stops.  Swapping those huge heavy batteries?  If they can be dropped from the bottom of the vehicle frame they can also be damaged by collision with foreign objects as has been recently demonstrated in the real world.  I can just see trying to release a battery whose, frozen under ice, clamps won't let go.  And the frequently exercised high current connectors will become another point of failure especially if moisture can get in during changeovers.  Just thinking about the handling and or robotics required and the drive through shelter to enclose this operation, the massive scale of parallel drive through stalls in comparison to standard gas station islands, makes me question the efficiency or efficacy of battery swapping.

Elizabeth M
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Blogger
Re: Nice-looking car
Elizabeth M   12/19/2013 10:26:59 AM
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Yes, Chuck, so the question remains, as it does with a lot of these new fuel-efficient or alternative car designs--what took them so long to get to market?

Andrew P.
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Silver
Re: Fuel cell car
Andrew P.   12/19/2013 12:10:56 AM
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"Hydrogen is great for filling buoyant balloons, welding specialty metals, and talking in a funny voice, but not for driving your car to work and back."

That would be helium, not hydrogen.

The practicality of hydrogen as a fuel for internal combustion engines was demonstrated in the 1970s and 1980s by Dr. Roger E. Billings and his Billings Energy Corporation (founded in 1972).  He promoted the concept of the "hydrogen homestead", whereby solar and wind energy could be used to split water and store hydrogen under relatively low pressure in tanks containing metal hydride.  Billings Energy had pretty much worked out the details of the technology that would allow an individual to live completely off-grid and produce all the hydrogen necessary to light and heat one's house, cook, and provide hydrogen fuel for one's automobile to commute to a job and run errands.  As I recall, threats were made on his life and he sold the business in 1985.

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