EastTexFrank said:And there's the rub. It's not that you can't run a car on water, it's just that it doesn't make any economic sense to do it. Why would you use diesel to produce electricity to produce hydrogen to run a vehicle when it's a lot more efficient and economic to run the diesel in the vehicle in the first place. If anyone finds a free lunch somewhere give me a call.
Hooey?? Honda, Toyota, and GM don't think so, all three are working on hydrogen powered cars and GM is lagging way behind the other two, ck out all threes websites about them but here's honda's Honda FCX Clarity - Fuel Cell - Official Web Sitehave_blue said:Thank you!
With today's fuel prices, anyone that comes up with something to get you even 10mpg better mileage would be a world hero. All the stuff about inventions being suppressed is total hooey, and always have been.![]()
You get more bang for the buck shooting hydrogen in balloons than for fuel in cars at the moment. Fuel cells could be practical for powering very small, light commuter cars some day, but they won't be helping any time soon.
dixie306 said:Hooey?? Honda, Toyota, and GM don't think so, all three are working on hydrogen powered cars and GM is lagging way behind the other two, ck out all threes websites about them but here's honda's Honda FCX Clarity - Fuel Cell - Official Web Site
Iceland is using gethermal energy to generate electricity and then using that to make hydrogen. If there is some cheap or free energy source, hydrogen might be OK. But hydrogen is not an energy source, just an energy storage mechanism and not a very good energy storage mechanism. It's energy density is low per unit volume. This means big tanks or short range.Egon said:Iceland is doing work on developing hydrogen fueled engines.![]()
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MATR News: Iceland Opens Hydrogen-Filling Station
YES. That is a good real world number after you factor in the energy you lose in making electricity from gasoline via eng/gen. Actual FULL energy from gasoline is 12.7 kiloWatt-hrs per kilogram. Best you can do with batteries is around 150 Watt-hrs per kilogram. That difference is a factor of 85. A decent amount of this difference [20vs85] can be recouped by using the waste heat from gas. Our cars do this some via the heater in winter.BobRip said:Boy it would be nice to have big improvements in batteries. However, at present batteries hold about %4 as much energy as gasoline of the same weight. That's a 20 to 1 disadvantage. Batteries have been the weak point of portable electric systems for at least 100 years. Many efforts have been made to improve them and they are better, but have a long way to go.
Egon said:Iceland is doing work on developing hydrogen fueled engines.![]()
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MATR News: Iceland Opens Hydrogen-Filling Station
honda's answer to this problem is solved by using a electric motor instead of a combustion engine, guys the futures just around the corner with this, ck out BMW's answer http://www.bmwusa.com/Standard/Content/Uniquely/FutureTechnologies/Hydrogen.aspx While I haven't built one yet, these things folks are making to produce hydrogen makes sense to me, a combustion engine has to have both fuel and air to run, adding hydrogen in with the air flow seems to aid in the combustion of gas. I watched the clip on Iceland and noticed that was a Shell oil station that had the hydrogen fill unit, its going to be interesting to see just how much they charge for it. After the cost of building it, operating cost can't be that great.SPYDERLK said:YES. That is a good real world number after you factor in the energy you lose in making electricity from gasoline via eng/gen. Actual FULL energy from gasoline is 12.7 kiloWatt-hrs per kilogram. Best you can do with batteries is around 150 Watt-hrs per kilogram. That difference is a factor of 85. A decent amount of this difference [20vs85] can be recouped by using the waste heat from gas. Our cars do this some via the heater in winter.
larry
dixie306 said:honda's answer to this problem is solved by using a electric motor instead of a combustion engine, guys the futures just around the corner with this, ck out BMW's answer http://www.bmwusa.com/Standard/Content/Uniquely/FutureTechnologies/Hydrogen.aspx While I haven't built one yet, these things folks are making to produce hydrogen makes sense to me, a combustion engine has to have both fuel and air to run, adding hydrogen in with the air flow seems to aid in the combustion of gas. I watched the clip on Iceland and noticed that was a Shell oil station that had the hydrogen fill unit, its going to be interesting to see just how much they charge for it. After the cost of building it, operating cost can't be that great.
jinman said:How many of those hydrogen vehicles in Iceland are used to pull 40' 5th wheel motorhomes down the highway at 70 mph? Does anyone use a fuel cell in an 18-wheeler? How about fuel-cell ATVs, personal watercraft, lawn tractors, tractors, and airplanes? We have created unlimited uses for our fossil fuels and now that the price has suddenly spiked, we are feeling the pinch. In the short term, we need more fuel in the pipeline to control prices.
Hey, I love those little cars and alternative fuels, but the problems are a lot greater than that. A single technology is not likely to displace our dependence on fossil fuels in the near term or long term. I'm very impressed by the ability of things like the bullet trains that use ultra low friction to enable large loads to move at high speeds. I think many technologies will come together to produce more efficient machines that take less fuel and yet are able to do the big jobs. It might be a horrible thought to some, but maybe our trucking industry will be replaced almost completely with high efficiency trains. At what fuel price will truckers be forced to park their big rigs? In my opinion, it won't take long. As it is, if you have full fuel tanks on a big rig, you almost need an armed guard to protect your "liquid gold" in those saddle tanks.![]()
dixie306 said:Hooey?? Honda, Toyota, and GM don't think so, all three are working on hydrogen powered cars and GM is lagging way behind the other two, ck out all threes websites about them but here's honda's Honda FCX Clarity - Fuel Cell - Official Web Site
You mean like next summer?have_blue said:Yes, hooey. But you took my hooey out of context. I said the whole "suppressed inventions" thing was hooey, not alternative fuel. I agree that alternative fuel shows promise, and may be feasible when gasoline costs $10 a gallon.![]()
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Oops, my bad, I'm one of those who believe necessity is still the Mother of Invention and I believe sooner or later, despite our present congress, a way will be found to create a fuel other than gas-oil.have_blue said:Yes, hooey. But you took my hooey out of context. I said the whole "suppressed inventions" thing was hooey, not alternative fuel. I agree that alternative fuel shows promise, and may be feasible when gasoline costs $10 a gallon.![]()
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dixie306 said:Oops, my bad, I'm one of those who believe necessity is still the Mother of Invention and I believe sooner or later, despite our present congress, a way will be found to create a fuel other than gas-oil.