Frankinstien: Hydogen was proposed back in the 70s as an alternative fuel . In a lot of ways it is almost Ideal . You split water molecules, draw off the hydrogen then reburn it back into water . The only problem is the storage and trasport one . This was being looked at by DOE durring the Carter adminastration . The best alternative was to use hydrides, so the search was on for the best metal or plastic carrier to do this . This came to a schreehing halt when Regan came in . Hydrides are not without there own set of problems but they might not be unsurmountable . I have often wondered if resurch had been carried out on this, would we be in the mess we are in today ? . . .
That's not the only problem and arguably not even the most difficult problem. The fact that it takes more energy to convert the stuff than you can get out of it is the biggest problem. Hydrogen isn't an energy source. It's an energy storage vehicle. See the issue there?
Hydrogen isn’t an energy source – it’s an energy carrier, like a battery. You have to make it and put energy into it, both of which take energy. Ninety-six percent is made from fossil fuels, mainly for oil refining and partially hydrogenated oil--the kind that gives you heart attacks (1). In the United States, ninety percent is made from natural gas, with an efficiency of 72% (2), which means you've just lost 28% of the energy contained in the natural gas to make it (and that doesn’t count the energy it took to extract and deliver the natural gas to the hydrogen plant).
As an energy CARRIER, it might be practical eventually despite the stumbling blocks you mentioned. But the problem is the cost of generating the energy that it will carry minus the energy cost of the conversion both in and out of it's hydrogen form.
gardenhackle: That's not the only problem and arguably not even the most difficult problem. The fact that it takes more energy to convert the stuff than you can get out of it is the biggest problem. Hydrogen isn't an energy source. It's an energy storage vehicle. See the issue there? As an energy CARRIER, it might be practical eventually despite the stumbling blocks you mentioned. But the problem is the cost of generating the energy that it will carry minus the energy cost of the conversion both in and out of it's hydrogen form.
Sorry to get back so late, but you are correct in this one . The hydrogen model they where looking at was to produce it where energy was abundent ( hydroelectric plants, geothermal, even solar ) then use the energy in placeses where these things are not available . It also would be a viable motor or jet fuel compatable with current fossel fuels . At least that was the then current thought . Making it would be a major industry just like oil refinerys are today . At the time the major problem was the storage and transpot of it . Still it was a nice model that had the least problems fitting in to exsiting technology .
Frankinstien: Sorry to get back so late, but you are correct in this one . The hydrogen model they where looking at was to produce it where energy was abundent ( hydroelectric plants, geothermal, even solar ) then use the energy in placeses where these things are not available . It also would be a viable motor or jet fuel compatable with current fossel fuels . At least that was the then current thought . Making it would be a major industry just like oil refinerys are today . At the time the major problem was the storage and transpot of it . Still it was a nice model that had the least problems fitting in to exsiting technology .
And so we see the gigantic prehistoric 800 pound fly in the ointment. The alternative energy options to fuel such a hydrogen conversion operation don't exist and aren't on the horizon. The amount of energy we consume is enormous and we're not even close to figuring out how we could replace it with anything other than more fossil fuels.
Coal fired generators and nuclear reactors are the most promising.
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