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#1
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Honda FCX Clarity 5.97 MPG!
Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon)
on liquid H2 (or is it H?). What does a U.S. gallon of hydrogen cost? -- |
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#2
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Honda FCX Clarity 5.97 MPG!
On 27 Mar 2008 20:10:43 GMT, M.A. Stewart > wrote:
>Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon) >on liquid H2 (or is it H?). >What does a U.S. gallon of hydrogen cost? If you have to know how much it costs then you can't afford it. Probably around a thousand dollars a gallon, unsubsidized. >-- |
#4
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Honda FCX Clarity 5.97 MPG!
So, what is your source of this information? per Honda, it gets closer to
the equivalent of 60 MPG with a range of 270 miles, are you sure your decimal point is not in the wrong place? http://automobiles.honda.com/fcx-cla...ll/comparison/ http://automobiles.honda.com/fcx-cla...ked-questions/ "M.A. Stewart" > wrote in message ... > Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon) > on liquid H2 (or is it H?). > > What does a U.S. gallon of hydrogen cost? > > > > > -- > > |
#5
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Honda FCX Clarity 5.97 MPG!
Justbob30 wrote:
> So, what is your source of this information? per Honda, it gets closer > to the equivalent of 60 MPG with a range of 270 miles, are you sure your > decimal point is not in the wrong place? > > http://automobiles.honda.com/fcx-cla...ll/comparison/ > http://automobiles.honda.com/fcx-cla...ked-questions/ I don't see where either say the vehicle gets 60 MPG. Rather, one graph says it has 60% efficiency, which means 60% of the energy in the hydrogen is converted to motion compared to about 20% in a gasoline engine. In the NY Times article (http://automobiles.honda.com/images/...s/NY_TIMES.pdf) it does say that it gets the equivalent of 68 MPG, meaning that it goes 69 miles on amount of energy as there is in a gallon of gasoline. > "M.A. Stewart" > wrote in message > ... >> Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon) >> on liquid H2 (or is it H?). >> >> What does a U.S. gallon of hydrogen cost? >> >> >> >> >> -- >> >> |
#6
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Honda FCX Clarity 5.97 MPG!
Jeff ) writes:
> Justbob30 wrote: >> So, what is your source of this information? per Honda, it gets closer >> to the equivalent of 60 MPG with a range of 270 miles, are you sure your >> decimal point is not in the wrong place? >> >> http://automobiles.honda.com/fcx-cla...ll/comparison/ >> http://automobiles.honda.com/fcx-cla...ked-questions/ > > I don't see where either say the vehicle gets 60 MPG. Rather, one graph > says it has 60% efficiency, which means 60% of the energy in the > hydrogen is converted to motion compared to about 20% in a gasoline engine. > > In the NY Times article > (http://automobiles.honda.com/images/...s/NY_TIMES.pdf) it > does say that it gets the equivalent of 68 MPG, meaning that it goes 69 > miles on amount of energy as there is in a gallon of gasoline. > >> "M.A. Stewart" > wrote in message >> ... >>> Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon) >>> on liquid H2 (or is it H?). >>> >>> What does a U.S. gallon of hydrogen cost? >>> >>> >>> >>> >>> -- >>> >>> I got the information from a Canadian magazine called 'Driven'. It's a glossy, overpriced, psuedo car magazine. The Mar. 2008 edition on page 69 states a 171 litre fuel tank with a 435 kilometre range. That works out to 5.97 MPG (U.S.). 171 L = 45.178 U.S. Gal 435 Km = 269.7 miles Did the mag mess up? What's a gallon of H2 cost? -- |
#7
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Honda FCX Clarity 5.97 MPG!
M.A. Stewart wrote:
> Jeff ) writes: >> Justbob30 wrote: >>> So, what is your source of this information? per Honda, it gets closer >>> to the equivalent of 60 MPG with a range of 270 miles, are you sure your >>> decimal point is not in the wrong place? >>> >>> http://automobiles.honda.com/fcx-cla...ll/comparison/ >>> http://automobiles.honda.com/fcx-cla...ked-questions/ >> I don't see where either say the vehicle gets 60 MPG. Rather, one graph >> says it has 60% efficiency, which means 60% of the energy in the >> hydrogen is converted to motion compared to about 20% in a gasoline engine. >> >> In the NY Times article >> (http://automobiles.honda.com/images/...s/NY_TIMES.pdf) it >> does say that it gets the equivalent of 68 MPG, meaning that it goes 69 >> miles on amount of energy as there is in a gallon of gasoline. >> >>> "M.A. Stewart" > wrote in message >>> ... >>>> Yikes... the Honda FCX Clarity (H2 fuel cell) gets 5.97 MPG (U.S. gallon) >>>> on liquid H2 (or is it H?). >>>> >>>> What does a U.S. gallon of hydrogen cost? >>>> >>>> >>>> >>>> >>>> -- >>>> >>>> > > > I got the information from a Canadian magazine called 'Driven'. > It's a glossy, overpriced, psuedo car magazine. The Mar. 2008 > edition on page 69 states a 171 litre fuel tank with a 435 kilometre > range. That works out to 5.97 MPG (U.S.). > > 171 L = 45.178 U.S. Gal > > 435 Km = 269.7 miles > > Did the mag mess up? > > What's a gallon of H2 cost? Hydrogen is a gas, not a liquid, unless it is real cold. A volume to volume comparison is meaningless, because if you double the pressure of the hydrogen gas, you double the amount of hydrogen in gas the hydrogen tank. I don't know how much hydrogen costs. Jeff > > - > > |
#8
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Honda FCX Clarity 5.97 MPG!
On Tue, 01 Apr 2008 01:25:08 GMT, Jeff >
wrote: >I don't know how much hydrogen costs. Well, a liquid gallon of hydrogen mixed with oxygen is about two cents, but that's about 90% oxygen by weight, so say you need ten gallons of the mixture, for about 20 cents. The separation is the trick. J. |
#9
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Honda FCX Clarity 5.97 MPG!
On Wed, 02 Apr 2008 09:42:33 GMT, JXStern > wrote:
>On Tue, 01 Apr 2008 01:25:08 GMT, Jeff > >wrote: >>I don't know how much hydrogen costs. >Well, a liquid gallon of hydrogen mixed with oxygen is about two >cents, but that's about 90% oxygen by weight, so say you need ten >gallons of the mixture, for about 20 cents. The separation is the >trick. So is the pressurization and containment. Most people aren't interested in powering thei vehicle with a hefty bag of hydrogen, not capable of propeling their vehicle a whole 50'. |
#10
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Honda FCX Clarity 5.97 MPG!
John Cocktoastin wrote:
> (M.A. Stewart) wrote in > : > >> >> I got the information from a Canadian magazine called 'Driven'. >> It's a glossy, overpriced, psuedo car magazine. The Mar. 2008 >> edition on page 69 states a 171 litre fuel tank with a 435 kilometre >> range. That works out to 5.97 MPG (U.S.). >> >> 171 L = 45.178 U.S. Gal >> >> 435 Km = 269.7 miles >> >> Did the mag mess up? >> >> What's a gallon of H2 cost? >> >> > > See, this is why that Mars lander crashed...got to get your units right. > Hydrogen is a gas. Your can't have a gallon of, um, gas. Well you can. Take a gallon bottle of milk. Drink the milk. You are left with a gallon of air in the bottle. > Is 171 liters liquid or compressed gas...was it 171 liters of gas at sea > level? IIRC, it was 2500 PSI, which is about 130 times atmospheric pressure. > The Chemistry Guy The chemistry guy who knows that gases take up space and can be measured in gallons or litres (although that is useful unless you know the temperature and pressure - remember the ideal gas laws?). Jeff |
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