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Politics : Formerly About Advanced Micro Devices
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To: combjelly who wrote (124124)9/18/2000 1:59:47 PM
From: pgerassi  Read Replies (2) of 1572637
 
Dear Combelly:

There are many ways that in the future (out 10 years or so) you could generate hydrogen without the problems of current methods. Biomass with genetically engineered plants making hydrogen gas (in specialized domes or other such facility) could solve all your problems. Fusion and fission can generate hydrogen through direct disassociation or electrolysis without any CO2 emissions. A HTGCFBR (high temperature gas cooled fast breeder reactor) is more efficient due to the high temperatures (and differentials) than a pressurized light water reactor (60% to 70% vs 30% to 40%). Electrolysis is about 85% efficient (power to H2 to power) cycle. This (85% of 60% or 51%) is more efficient than IC engine (5% to 10%) or diesel (10% to 25%) overall.

The main reason we stay with gasoline is cost. The infrastructure is paid for and an IC engine only costs $100 to $200 (to build one more engine). A 200 to 300HP engine in a SUV is far more wasteful than a 50HP engine in that SUV but, people do not seem to want to buy the smaller engine (in this case bigger is not better) (you do not need to be able to dash at 100MPH either (if you do, some "Bears" would like a word with you and they will give you some jewelry to wear)). IMHO most cars are over powered and if, built to go the maximum speed (80MPH (75 + 5MPH for some margin)) and be most efficient at 55 to 75MPH on freeways and interstates, would get much better (50% or more) gas mileage. But no one will buy it (well almost no one as I would buy it (I buy the smallest engine for each model I have gotten (within reason) over the last 10 years)).

Pete
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