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What could this formula be? (sopuli.xyz)
submitted 1 year ago by to c/linkedinlunatics@sh.itjust.works
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Antrepreneur Hello sir Sir, I have such a formula that can help the electric bike and car travel a long distance. Electric vehicles can get rid of the need by charging it again and again. Charge the electric vehicle once a week or not. Go as much as you can go. It is based on an technology which is not yet available in the market. We have a lot that will make it and this is not possible without you, I know that millions of people msg you and you have not time too., but still there is a request from you, please give me only 10 minutes of your precious time. And sir, I want to apologize for msging you in the comment box, but sir, I am not finding any way to contact you, that's why I am messinging you in the comment box. I want to explain the whole formula to you if you give permission Because here the formula will change the world of electric vehicle.
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[–] 40 points 1 year ago (10 children)

I've legitimately had someone suggest adding a small wind turbine to a car to generate power to charge the car as it's moving.

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  • [–] 3 points 1 year ago

    Turbines? Haven't these people ever heard of piezoelectrics? Actually, instead of that take one of those calculator we had in school that ran on light. Take the thingie at the top of the calculator out, put it in the front window of the car, connect it to the battery and Bob is your uncle.

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  • [–] -2 points 1 year ago (6 children)

    You're eating the air resistance anyway so probably not the worst idea if it generates a more than negligible amount.

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  • [–] 28 points 1 year ago* (4 children)

    It will increase air resistance, so you don't gain anything (a turbine will need more power to spin when there is an electric load).

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  • [–] -5 points 1 year ago (3 children)

    It will increase air resistance,

    Not if you position it, say, in front of the car so that you're getting energy without getting hit without much additional force. If you somehow don't need to see, the whole front of the car can be turned into a turbine. Now obviously we're not making a perpetual motion machine here, but this could theoretically be the air resistance equivalent of regenerative braking.

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  • [–] 11 points 1 year ago (1 child)

    It doesn’t work because the car’s front is shaped to minimize drag, and a turbine would add drag — forcing the motor to work harder to maintain speed. Turbines generate energy by resisting airflow, not letting it slide past. So you’re not harvesting free energy; you’re paying for it with more fuel or battery.

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  • [–] -2 points 1 year ago*

    So you’re not harvesting free energy; you’re paying for it with more fuel or battery.

    Of course it's not free energy, but strictly theoretically if the turbine, say, doubles the air resistance in the area where it's installed and works at 80% efficiency, then instead of losing A amount of power you're losing 2A and getting 1.6A, for a total of 0.4A net loss. Now I have no idea if these numbers are even remotely realistic, but that's kind of beside the point. Of course the turbine would simply be turning battery into less battery, but that's better than the car's front turning battery into no battery.

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  • [–] 3 points 1 year ago

    Still increases air resistance. It gets hit by air, and that pushes it back into the fuselage.

    Larger aircraft commonly have a ram air turbine (RAT) or Air Driven Generator (ADG) to provide some electrical power and hydraulics in certain emergency situations.

    On CRJs, it's right up the front: https://www.youtube.com/watch?v=MxgPrpjByTE

    Still delivers a percent or two penalty to fuel burn, and the tiny little generator doesn't even come remotely close to making up for that.

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