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Politics : Formerly About Advanced Micro Devices
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To: pgerassi who wrote (124072)9/17/2000 2:15:14 PM
From: DRBES  Read Replies (1) of 1583886
 
re: "You have to heat the hydrides to release the hydrogen but density is about 1/3 (I think) of LiH."

That is not a problem, you can use exhaust heat from the engine to provide the heat. If you actively pump the hydrogen out of the hydride it can provide air conditioning for the vehicle. During the late seventies Mercedes Benz was very active in this area. The engineering, practicality, and practicability problems associated with metal hydrides are profound. They are expensive (not all of them, just the one that you would want to use), they shrink and expand and mechanically and some chemically degenerate on cycling, and they are mostly so massive per unit of hydrogen storage that they can seem to make battery powered cars light.

BTW, I have three or four US patents and one European patent (owned by a very large oil company) in this once fertile (now seen as futile) area.

Patient Regards,

DARBES
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