Dear Small_beutiful,
Regarding reformed gasoline:
"However, vehicles using reformed gasoline or ethanol to power fuel
cells could still be more efficient than vehicles running internal
combustion engines, if the technology can be invented."
http://www.answers.com/topic/hydrogen-vehicle
"Fuel cells running on pure hydrogen are more efficient than those running on
reformed gasoline, and they require less of the expensive platinum
catalyst used to manufacture automotive fuel cells. In short, pure
hydrogen fuel and fuel cells are a winning combination."
http://www.rmi.org/images/other/HCPrss-HcTransition.pdf
Predicting the Fuel Economy Impact of "Cold-Start" for Reformed
Gasoline Fuel Cell Vehicles
http://www.sae.org/servlets/productDetail?PROD_TYP=PAPER&PROD_CD=2003-01-2253
I am reposting below my previous findings for your convenience.
Best regards,
Bobbie7
Average vehicle has a range of about 300 miles
Hydrogen fuel cell vehicle - 170 miles
In order for the general public to buy fuel cell vehicles in large
numbers, it is critical that the range of these vehicles be at least
as great as the cars we drive today. On a full tank of gas, an average
vehicle has a range of about 300 miles (483 km). In terms of fuel
cells vehicles, there are presently four different systems for
hydrogen storage: high-pressure gas storage, metal hydrides (hydrogen
absorbing rear earth metals), liquid hydrogen and reformate.
Even under extremely high pressure (10,000 psi), a fuel tank designed
to fit inside the trunk of an automobile can only hold enough hydrogen
(7 kg) to provide a fuel cell vehicle with the range of about 170
miles (274 km). This may be less of a concern in the future if new
fuel cell automobiles are designed around hydrogen fuel tanks and not
vice versa, which is the casepresently.
http://www.energyprobe.org/energyprobe/images/hydrogen.pdf
?As a consequence, the driving range of hydrogen-fuelled cars, with
fuel cells and internal combustion engines alike, is limited to about 200 km.?
http://www.efcf.com/reports/E01.pdf
Hydrogen
?Fuel cells often are viewed as the wave of the future in the
automotive industry. Running off hydrogen instead of gasoline, the
F-Cell cars have zero emissions. The F-Cell can go about 100 miles on
a single tank.?
http://www.freep.com/apps/pbcs.dll/article?AID=/20060421/BUSINESS01/604210348/1014/BUSINESS
HydroGen3, liquid hydrogen-fueled vehicle
250 miles
?Japan?s Ministry of Land, Infrastructure and Transport (MLIT) granted
GM the first-ever approval to drive a liquid hydrogen-fueled vehicle
on public roads in Japan. With a driving range of 400 kilometer (250
miles), HydroGen3 has the highest driving range of any fuel cell
vehicle approved for public roads in Japan.?
http://www.gm.com/company/gmability/adv_tech/400_fcv/fc_milestones.html
Methanol
Nissan Begins Driving Tests of a Methanol Fuel Cell Vehicle
Q12. What is the driving range of the vehicle?
A12. With roughly the same-size fuel tank as that of a
gasoline-powered vehicle, the driving range is approximately 1.5 times
longer
http://www.autoworld.com/news/Nissan/FuelCellTested.htm
Methanol fuel cell vehicle
310 miles
Toyota also showcased a prototype methanol fuel cell vehicle at the
Frankfurt Auto Show. Based on the popular RAV4 sport-utility vehicle
and operating on methanol, this prototype car has a range of
500 kilometers (310 miles), while demonstrating a hybrid design
concept. Toyota has vowed to beat its competition to the marketplace
with a methanol fuel cell vehicle
Gasoline/diesel-battery hybrid vehicle
100 miles
Another technological development is the hybrid vehicle. The
gasoline/diesel-battery hybrid vehicle is a direct development borne
out of the limitations of battery technology. Battery-powered electric
vehicles are heavy, due to the weight of the battery pack, and have
severe range limitations, reaching at most 100 miles in realworld
range per charge, but more typically 75 mile.
http://www.methanol.org/pdf/amipromise.pdf
>How do these compare with today's conventional internal combustion cars?<
A typical gasoline-powered car offers a range of 300 to 400 miles on a
tankful of fuel.
http://www.drivingtoday.com/features/archive/hybrid_electrics/index.html
Gasoline vehicles currently have an advantage in terms of driving
range. Most gasoline vehicles can travel 500 - 650km (300 - 400 miles)
before refueling, while most current FCVs can only travel about 400km
(250 miles).
http://www.cellexpower.com/Technology/faqs.htm |
