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eletricity versus oil energy |
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| Aug10-09, 05:07 PM | #18 |
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eletricity versus oil energyhttp://www.physicsforums.com/showpos...2&postcount=14 If those happen no doubt they'll start out with traditional onboard gas turbine electric generators, but eventually other electric sources are possible as their specific energy improves including fuel cells, batteries, even nuclear. |
| Aug10-09, 05:12 PM | #19 |
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If oil prices end up double or triple (or more) what they are now in a few decades due to lower supply, that'll open up vast new sources of oil for economic viability. Decades after that, if oil prices double or triple (or more) again, then we'll be converting our vast supply of coal to liquid fuel burnable in vehicles. This in turn will make coal use in power plants too expensive and make nuclear power the only viable large scale power source. Will cars be powered by liquid hydrogen, lithium (or other) batteries or a synthetic liquid fossil fuel in 100 years? I'm not all that worried about these possibilities because I don't see the technical hurdles as being all that daunting. These are largely economic issues. |
| Aug10-09, 06:30 PM | #20 |
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Those are your conservative beliefs. Others believe differently. I do not like putting the our children's futures at risk simply because it is easy for us. We need to wean ourselves from fossil fuels, the sooner the better. To deny this is simply foolishness. Putting your faith in the undiscovered resources is simply silly. A much healthier belief system would be one which puts the development of alternative fuels on the front burner, NOW. |
| Aug10-09, 06:52 PM | #21 |
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...btw, how does your position that we should work on development jive with your opinion that we shouldn't put faith in undiscovered resources? Instead of unidscovered resources, you're putting your faith in undiscovered technologies! Why I think my ideas are superior to most peoples' is that my ideas do not require undiscovered resources or technology for quite a while whereas most peoples ideas require undiscovered resources or technology right now. Every second (and dollar) we spend pursuing ideas like solar power instead of building a new nuclear plant (for example) is a second (and dollar) wasted. |
| Aug10-09, 07:15 PM | #22 |
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| Aug10-09, 07:30 PM | #23 |
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For transportation 2nd generation biofuels are the best stopgap until a cheap and clean source of electricity can be found to supply H2. They are made from parts of the crop that aren't eaten and are almost carbon neutral. Problem is, they are expensive to produce making them uncompetetive with crude based fuel.
You still need crude for lubrication and plastics though (as far as I can remember anyway). |
| Aug10-09, 07:45 PM | #24 |
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Proposed: This house believe that biofuels, not electricity, will power the car of the future. http://www.economist.com/debate/overview/145 Audience voted it down 68:31. 2) Hydrogen. The big R&D is dead for now. Interview with DoE Secretary Chu: http://www.technologyreview.com/business/22651/page2/ H Car R.I.P |
| Aug10-09, 08:02 PM | #25 |
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I am amazed that you cannot see the difference. BTW we are off topic with this conversation. |
| Aug10-09, 08:06 PM | #26 |
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Well whoever the fella is, I dont share his views. I am of course noone of authority but my views are scientific FACT!! :P
Hydrogen is the only really obvious choice for long term fuel, once you've got the infrastructure nailed and have carbon free electricity then its the obvious choice. The technology is there, just that noone wants to stump up the cash. All of the above arguments hinge on the fact that you are burning fossil fuels for H2, which for the moment is true, but a progressive switch to nuclear and (shudder) wind/solar etc will solve that in a jiffy. That and atm its expensive to implement, but then again so are biofuels. Biofuels have less inital expendature but refinement of the technology isnt likely to reduce the cost by a great amount. The more availalbe cheap electricity is, the cheaper H2 is. |
| Aug10-09, 08:15 PM | #27 |
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| Aug10-09, 08:25 PM | #28 |
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| Aug10-09, 08:34 PM | #29 |
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| Aug10-09, 08:37 PM | #30 |
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That is a cheeky emoticon, and is put after the claim that it is a 'fact' to indicate that I was in fact (many uses of the word fact) saying it in jest. The fact that I both capitalised FACT!! and immediately before said I was no authority on the subject showed that it was my opinion. I hav ealso stated that it was my opinion earlier in this thread. If I had claimed that it was serious fact that I had invented a car that runs on sneezes, then you may possibly hae had a case. IBTL. DISCLAIMER: This post, although sarcastic, is in no way meant to be hostile. |
| Aug10-09, 09:43 PM | #31 |
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You probably won't see any of the major break throughs coming from government sponsored research anyway. The greatest amounts of development have come from industry which spends many times more on R&D than the government does. For the government to nurture hydrogen technology, it is better that they support it with their POLICY and not with their BUDGET. |
| Aug10-09, 09:51 PM | #32 |
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| Aug10-09, 10:05 PM | #33 |
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| Aug10-09, 10:13 PM | #34 |
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