Sounds like a very old analysis. Toyota will be selling their cars in California, which should be your first clue. BEV have had (and still do) their own challenges, too. But it's just not productive to focus on those as have all the "negative Nellies" for decades. I've heard over 30 years of "can't, can't, can't" about electric drive vehicles of all types.
In the 80's, the agencies were saying that, too. They also said "can't, can't, can't" about cleaning up the air any further. So they got sued in federal court by a private citizen, who, to make a long story short, won. L Sent from my iPhone > On Jun 25, 2014, at 3:48 PM, Peter Eckhoff via EV <[email protected]> wrote: > > AC Propulsion had a Power Point slide where they compared the efficiency of > various "fuels". Their standard was an EV with the equivalent of 50 MPG. A > similar vehicle, powered by hydrogen produced from reformatted natural gas > and fed into a fuel cell, was the equivalent of 30 mpg while hydrogen > produced by electrolysis was the equivalent of 12 mpg. > > There a number of technical problems with fuel cells: > 1) A fuel cell life expectancy was about 2,000 hours. Since my average > driving speed is 30 mpg, I would have to replace my fuel cell every 60K > miles. Therefore, a different fuel cell construction technique would have to > be used. > 2) A pack of battery or electrolytic capacitors or an ICE was needed to aid > in acceleration. Therefore, a faster way of transferring the "proton" > through the electrolyte is needed. Think of a proton as a person needed to > run through air as opposed through water or molasses. > 3) The storage of hydrogen to go 300 miles in a Toyota Camry needed 3 > specially carbon wound tanks where the internal pressures reached 700 bar. A > bar is 14.7 pounds per square inch. This equates to 5 tons per square inch > in a "2 ton" vehicle. Catastrophic failures would be catastrophic. The > hydrogen, therefore, needs to be stored in a molecular sponge where the > hydrogen freely flows in and out of storage without much energy inducements. > One real scheme required 800 degree Fahrenheit temperatures to release the > hydrogen from storage. > > Given the number of technical problems that need to be solved, I don't see > hydrogen fuel celled vehicles coming into common use anytime soon. > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA > (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
