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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: d[-_-]b who wrote (349573)	9/3/2007 12:20:16 PM
From: combjelly	Read Replies (2) \| Respond to of 1573841

"Hydrogen still requires 4 times the space to store the same amount of energy as gasoline" That is a "it depends". If you are talking about compressing it in a tank, yeah. But there are a lot of reasons why that is a bad idea. Hydrogen embrittlement is only one. A better idea is something like sodium borohydride solution. It is easy to get an equivalent energy density, and it is non-flammable and non-explosive. While the solution is mildly toxic and can cause skin inflammation, it isn't nearly as bad as gasoline. And when spent, the result is a borax solution, in other words a soapy solution. Which is very benign. The only problem is there isn't an economical way to turn borax back into sodium borohydride.

To: d[-_-]b who wrote (349573)	9/3/2007 1:43:52 PM
From: steve harris	Read Replies (2) \| Respond to of 1573841

I didn't know it was 5k psi. What is 5 bar? auto.howstuffworks.com The 5k pressure is a problem. I hadn't seen that before.

To: d[-_-]b who wrote (349573)	9/6/2007 6:21:27 PM
From: tejek	Read Replies (2) \| Respond to of 1573841

thought I read somewhere that if all of the current corn acreage was used for fuel, it would only be about 10% of our needs. I think there is a capacity problem that cannot be overcome. That's true and it's driving up the price of beef - at this rate I'll need two or three deer tags. The holy grail is the discovery of an economical process to use the corn stalks instead of the grain - cellulosic ethanol. You would think there would not be that big a leap between using sugar cane vs corn stalks. Using the corn stalks would still allow the farmer to benefit while not inflating feed costs.