If we were to use hydrogen as fuel, how would it be sold? Like gas is sold by the liter in most of the world (gallons in the US for some reason), how would hydrogen be sold? (Also considering it would probably be stored in fuel cells in the car. Yeah, isn't that how they store it or do they just pressurize it?)Anyway, in a nutshell, how would they sell hydrogen for cars and how would the cars actually store it? Thanks.
we call special tanks that hold fuel fuel cells All NASCAR cars, all indy cars have a special tank with heat dissipation systems call fuel cells. First H2 is not and will never be a serious energy system, H2 is just an inefficient battery. In any case, H2 will be sold on a mass basis and then the mass will be converted to BTU's then the BTU's will be converted mathematically to GGE, gallons of gasoline equivalent. The measurement device is a coriolis meter like a micromotion. H2 has about 50,000 BTU's lb and gasoline has 125,000 btu's per gallon so, 2.5 pounds H2 is equal to 1 gallon of gasoline. Today's price would be about $5/gallon for H2. I've got to say it, there will never be a hydrogen on demand system. Were do you people get such stupid ideas. Where will the energy come from to run such a system, a gasoline engine running a generator to eletricute water? A on board methane cracker or gasoline cracker that converts gasoline or methane to H2. I suggest all you H2 proponets take a class in simple thermodynamics and then tell us how H2 is thermodynamically viable.
i think Ford found a way to use water aluminum pellets to create a chemical reaction separating the hydrogen oxygen. so your car would have a separate water tank separate bin for the aluminum pellets.
If your car is designed to use hydrogen on demand, then you would not need to store hydrogen. It would come from water. Several inventors have already proven this. The oil and automobile companies do not want the public to have this technology. There is no money to be made for them.
In the non-racing sector, fuel cells are used to turn a fuel, like Hydrogen, into electricity via chemical reaction, not combustion. Hydrogen is not stored in them. There are now a few ways to store hydrogen; 1) as a liquid (needs very cold -422 degrees F temperature) or 2) compressed as a gas (as hydrogen is the lightest element, it leaks out of current compressed type storage tanks. I read a report that some company, I forget which one is working on a gas tank that will keep most of the hydrogen in storage longer than a week. I also heard that ExxonMobil is working on an on-board hydrogen generator. Researchers at the University of Bath have discovered that a compound of 6 rhodium atoms and 12 hydrogen atoms will store 2 extra hydrogen atoms at room temperature and normal atmospheric pressure. Apply an electric current and the extra atoms split off, ready to power a car {as of June 2007 report}. Scientists from Oak Ridge National Lab and 2 universities are working on turning sugars known as polysaccharides into low cost hydrogen with the help of enzymes. Enzymes can break the mix of sugars and water into hydrogen and carbon dioxide. The scientists say a tank containing such a mix, with the right enzymes, could power a car for more than 300 miles. Somewhere around 2002 a company called Energy Conversion Devices was working on storing hydrogen in solid pellets (metal hydride). A solid hydrogen storage system, and regenerative fuel cell was thought to allow a car to travel more than 200 miles with a one-minute charge at a service station. This technology would enable more hydrogen to be stored per liter (103 grams) of hydride than either gaseous (compressed at 5,000 psi provides 31 grams per liter) or liquid (71 grams per liter) hydrogen. Since about 2002, I haven't heard a thing about them. It doesn't matter how hydrogen will be sold. I would think that for quite some time the service stations signs would say for sale at $x.xx9 per gas gallon equivalent.
