Re: Help please: electric auto + turbine question

MadDogR75@xxxxxxxxx wrote:
On May 14, 10:58 am, Mark <helicopte...@xxxxxxxxx> wrote:
Hello!
My name is Mark, I am looking for some feedback on my idea relating to
a zero emission electric & solar combination vehicle.

• Instead of relying on a large battery pack for all the power, I was
thinking about using a smaller battery and using the rotating wheel to
generate power.
• Specifically, 1 large or 2 small turbines will be installed, to
harness the power from the tires
• Excess power generated could be transferred back to the small
battery

What would I need to convert the turbine power into usable energy for
the electric motor (which would be running partly from battery and
partly from the turbine)?

Thanks for any help!

Mark,
1. When you take power from the wheels, its called braking.
Great for stopping, lousy for efficiency.

Actually, when your intention is to stop it is great for efficiency, because it allows you to get back some of the energy that you expended to accelerate. That is one of the main reasons why hybrids such as the Prius get better mileage in city driving than on the highway, in contrast to conventional autos that get better mileage in highway driving.

2. I think you mean 'generator' not 'turbine'.

I made that assumption also in my previous reply. It might be easy for someone not very familiar with electrical generation to confuse the two terms, since turbines and generators often come in pairs. Most of our electrical power is produced by generators that are driven by turbines of various sorts (steam, water, gas combustion, air). A turbine, of course, is basically just a fan, where the fluid pushes on the fan and makes it turn rather than the reverse. Of course a turbine makes no sense in Mark's proposal, but a generator does. What he didn't seem to realize is that the electric motor that propels the wheels for acceleration can itself function as the electrical generator for braking--you don't need a separate generator for that.

3. Turbines are not 'zero emission`.

Well wind turbines and hydro turbines are essentially zero emission (if you don't count their manufacture and construction), but that has no relevance to the present discussion.
.

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