16 Jan 2009
Bogus concept: "Once it has gathered speed the wind flowing past a turbine will generate further energy, which will be stored in ultra-capacitors and can be used in bursts to boost acceleration." It would be simpler to just use the rotation of the wheels and a generator to get kinetic energy back into the ultra capacitor (or battery) but this is just regenerative breaking and you get nothing new from this. In fact you start decelerating the car. Only if there is a strong wind blowing (when the car is standing still) is it possible to extract additional energy from the environment. But now the wind capture will cause additional drag on the car when the car is moving. Sorry but there are no perpetual motion machines.
16 Jan 2009
There are already vehicles like this today. The Tesla, eBox and MINI-E to name a few. It best to leave the solar panels at the correct angle facing south instead of on a moving vehicle. The same for wind. It's a bit crazy to try and mix the 2 and make more in efficient.
Even solar competion cars are meant to show how great solar is, and how efficient you can make an electric vehicle. They are supposed to be an everyday car.
20 Jan 2009
I too was totally baffled by the concept of an on-board wind turbine. Surely the (in)efficiencies involved would always mean that you get less electricity back than that you waste through resistance to the turbine in the first place? Very interested to see more details - maybe there is some method of harnessing airflow that doesn't increase resistance but it seems unlikely.
There are a few more details here: but I've contacted the company to see if they will inform us further.
30 Jan 2009
Air Flow Recovery Updated Information
The Air Flow Recovery system is a regenerative braking system for RORMaxx Automotives Formula AE plug-in electric vehicle. The system is comprised of four turbine-fan blades connected to synchronous alternators that charge ultracapacitors via wind flow over the vehicle. Hydraulic flaps close the ducting to the turbines under acceleration and when the ultracacpitor’s are fully charged to provide for the most efficient solution in the quest for minimal drag. Upon application of the brakes, the flaps open to allow airflow to the turbines, allowing them to recover energy in the form of electricity during these deceleration time intervals. The Air Flow Recovery System, in the deceleration application, negates the effects of drag due to the necessity for optimal braking performance.
30 Jan 2009
Cool! Impressed by the technology - makes total sense now! Thanks for taking the time to explain.