From: Neil Gerace on 23 Jun 2010 02:22 On Jun 23, 11:37 am, Diesel Damo <Diesel_...(a)yahoo.com.au> wrote: > On Jun 22, 8:52 pm, Qansett <qan...(a)hotmail.com> wrote: > > > Why cant they build and electric car that can recharge its > > own batteries while in motion.? > > Rumour has it the sun emits energy... You certainly can't generate enough power that way to get a net benefit while the car's running. The batteries will still need charging after you shut down for the night.
From: Toby on 23 Jun 2010 02:37 On Wed, 23 Jun 2010 04:51:15 GMT, Athol wrote: > Qansett <qanset(a)hotmail.com> wrote: >> Read about this in the motoring section of Sydney Saturday Telegraph. >> This car has only 160 kms range on a full battery charge and costs $40K >> plus to buy. Unless youre a city driver only, who would buy this car at >> that price.? > >> Heres the big question: >> Why cant they build and electric car that can recharge its >> own batteries while in motion.? > > As far as I can find out, every current straight electric and hybrid > electric vehicle uses regenerative braking to charge the batteries > when slowing down or going down hill. That's a major part of how > they get the range that they do. Without that, the above vehicle > might have a range of say 60km. > > On average, only about half of the energy makes it back into the > batteries, due to a combination of inefficiencies in the motor when > operating as a generator, wiring, electronics, etc., plus the limit > on how fast charge can be put into batteries. Yes, well - we're still waiting for the Insurance Shysters to calculate the risks of capacitor batteries - and of course the military applications of the things will have to be explored first. All that and more before we see a real rechargeable battery in a normal vehicle. -- Toby The solution could not possibly be more obvious. We can no longer afford the rich. T. Hussein Mississippifarian - July 2008
From: Diesel Damo on 23 Jun 2010 03:01 On Jun 23, 4:22 pm, Neil Gerace <gera...(a)iinet.net.au> wrote: > On Jun 23, 11:37 am, Diesel Damo <Diesel_...(a)yahoo.com.au> wrote: > > > On Jun 22, 8:52 pm, Qansett <qan...(a)hotmail.com> wrote: > > > > Why cant they build and electric car that can recharge its > > > own batteries while in motion.? > > > Rumour has it the sun emits energy... > > You certainly can't generate enough power that way to get a net > benefit while the car's running. The batteries will still need > charging after you shut down for the night. I know, but something is better than nothing.
From: Bernd Felsche on 23 Jun 2010 04:01 Toby <me(a)privacy.net> wrote: >On Wed, 23 Jun 2010 04:51:15 GMT, Athol wrote: >> Qansett <qanset(a)hotmail.com> wrote: >>> Read about this in the motoring section of Sydney Saturday >>> Telegraph. This car has only 160 kms range on a full battery >>> charge and costs $40K plus to buy. Unless youre a city driver >>> only, who would buy this car at that price.? >>> Heres the big question: Why cant they build and electric car >>> that can recharge its own batteries while in motion.? >> As far as I can find out, every current straight electric and >> hybrid electric vehicle uses regenerative braking to charge the >> batteries when slowing down or going down hill. That's a major >> part of how they get the range that they do. Without that, the >> above vehicle might have a range of say 60km. >> On average, only about half of the energy makes it back into the >> batteries, due to a combination of inefficiencies in the motor >> when operating as a generator, wiring, electronics, etc., plus >> the limit on how fast charge can be put into batteries. >Yes, well - we're still waiting for the Insurance Shysters to >calculate the risks of capacitor batteries - and of course the >military applications of the things will have to be explored first. >All that and more before we see a real rechargeable battery in a >normal vehicle. The electric car nuts need to get a grip on reality and realize that electrolytic storage of energy is unsuitable for general automotive traction power. All the plausible (and some implausible) anode/cathode pairs in a myriad of electrolytes have been explored and still the energy storage density (by mass and/or volume), charge rate, durability, safety and recovery efficiency are nothing like competitive with liquid fuelled vehicles (including LPG). Time to bite the bullet. Fuel cells still have some way to being engineered for automotive traction use in hot climates, but that can possibly be achieved within a decade. Which gives time to develop synthetic, liquid fuels for such applications. Liquids that are as easy and convenient to store and handle as petrol or diesel. Energy to synthecise such fuels can be taken from "waste" heat of nuclear power stations; or conventional ones. Hydrogen is interesting but a dead-end. Even if the synthetic liquid fuel only has half the recoverable density of petrol/diesel, the ease of handling and refuelling will not be a severe constraint on personal mobility. Personal, independent mobility is what the car game is all about. -- /"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia \ / ASCII ribbon campaign | For every complex problem there is an X against HTML mail | answer that is clear, simple, and wrong. / \ and postings | --HL Mencken
From: Milton on 23 Jun 2010 04:56
"Noddy" <me(a)home.com> wrote in message news:4c2098e6$0$1204$c30e37c6(a)exi-reader.telstra.net... > > "Qansett" <qanset(a)hotmail.com> wrote in message > news:4c2095f6$0$582$afc38c87(a)news.optusnet.com.au... > >> Heres the big question: > > Uh-huh..... > >> Why cant they build and electric car that can recharge its >> own batteries while in motion.? > > And how would you propose that they do that? > ERR! He's asked the question, so why ask him?? Do you ask questions if you already know the answer...........yep bet you do! ; ) Regards Milton |