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Thread ID: 81607	2007-08-01 21:19:00	BioFuel Warnings	pctek (84)	PC World Chat

Post ID	Timestamp	Content	User
575153	2007-08-05 11:12:00	Well the guy in this link www.techeblog.com I guess claims his fuel is water based. i guess thats kinda open for interpretation.	rob_on_guitar (4196)
575154	2007-08-05 12:30:00	Ok, i got a question, Ive seen these electric cars that run of battery cells, but i notice the majority arent very powerful and drive slow. Why is this? And if they managed to hone in and develope it to where car power is today, would it be a good alternative to normal fuel? yes The problem is the batteries. They are not a good place to store electricity at all. [/QUOTE/]true, petrol is unsurpassed in energy per unit mass and/or volume [QUOTE=SurferJoe46;578206] Liberation of the reactive gasses, heat, losses of plate surface from constant impregnation/impingement and liberation of electrons etc all take a toll. Electric motors make the most torque just at the moment of initial motion where the power drops off rapidly from that point on. Induction loads the commutator, windings, dielectric strength and the fields and results in reactive heat generation. Remember that heat is just a different form of energy and it came from where?...That's right, it came from the source of the electricity! That is a loss of useful motive energy to move the vehicle. Next problem is the wiring..it is rife with connections and changes of material and that too causes induced losses of electron flow. Low voltage/high power induction problems occur in a DC circuit...but that may be addressed by digital modes of energy transmission in the future. You still face certain losses from the conversion to digital from DC though..and more heat. [/QUOTE/] ok, let's get this straight: ideal efficiency of combustion engine - 35% actual efficiency of petrol engine - <25% efficiency of brushless electric motor - 85-95% only problem is petrol carries more energy than current batteries and capacitors [QUOTE=SurferJoe46;578206] Then there's the recharge problem. Either self-regeneration during braking or downhills helps a lot, but you can't go downhill all the time. Electricity off the power grid costs energy generation from somewhere...the coal-fired or nuclear station that the greenshirts want to close so you can drive an eco-friendly electric car just doesn't make any sense at all. Where is that electricity gonna come from if not from there? The batteries that you'd have to carry cost energy to move them too. Experiment with yourself. Put large rocks in your pockets and knapsack..then try to run down the street. Now..HYBRIDS offer some succor. But this was about electric cars..right? the carbon emmissions from an electric car are a tiny fraction of that of a petrol car - even if you burn coal NOW, as for performance matching my sportbike/a lambo, with a 200mile / 400km range and overnight charging see this (www.teslamotors.com) - actually the page claims a full charge in 3.5 hours, but with that range i think i'd charge it like i do my cellphone oh, did i mention electric engines do not require gearboxes and are effectively zero-maintenance? and with regen braking you save brake-wear, so bar from changing the tyres mechanics are going to go broke within 30 years if they don't start to re-train and re-tool soon	motorbyclist (188)
575155	2007-08-05 12:32:00	oh, and considering the zero-emissions and road-noise only approach, electric vehicles would make urban environments much healthier really the only argument against them is the huge job losses and as they are silent, pedestrians will actually have to look where they're walking - but hybrids share the same problem	motorbyclist (188)
575156	2007-08-05 12:35:00	Do I detect that you are in the US? Seems to me that Pick-A-Part is only a US company..I might be wrong.. no, there's one here in west auckland, might not be affiliated with the us one though rest of that post is bang on though:thumbs:	motorbyclist (188)
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