Posted by JMOR on November 23, 2013 at 06:53:33 from (72.181.173.171):
In Reply to: Hydrogen power? posted by George Marsh on November 23, 2013 at 05:27:29:
Quoting Removed, click Modern View to see2.5 may be a good number, but not of much if any importance when considering a motor fuel. At atmos pressure you need a tank 3,000 times larger than for gasoline for the equivalent energy content. Compress it, you say.....fine, just factor in the volume & weight of 10,000 PSI tanks. Liquify it you say.......just factor in the -400 degree temps, tank insulation, and the fact that without a continuous external refrigeration source, it all MUST turn into vapor, whether you use it or not or else the pressure can't be contained. It is either burned off or released into the atmosphere.... unused. In the hydrogen BMW, the whole full tank is gone while sitting at the airport parking lot over just a 9 day air trip. There is much, much more to this than a dreamy-eyed number here & there. Much more than I know as well!
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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