Electric generation

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Comments

  • earthvspace4XTuUWcX
    earthvspace4XTuUWcX Posts: 322
    I've a better idea for the OP.
    Design a cycling helmet covered in solar panels, and with a small wind turbine attached to the top. At least the extra weight and drag would not be too bad and I can at least keep my current bike. :lol:
  • 964cup
    964cup Posts: 1,362
    geniusbeanie.gif
  • chrisaonabike
    chrisaonabike Posts: 1,914
    I watched the video, just for grins. I particularly liked the throwaway comment at the end about taking the bike battery off the bike, plugging it into the building - to power the building :roll:

    OP really needs to do some maths.

    One computer takes about 100W while it's on. So it will use about 1 kWh of electricity (note: not 'electric' - 'electric' is an adjective, not a noun) per day if it's on the whole day.

    Assume one cyclist generates 100W on average while cycling. Assume a half hour commute, that's an hour a day of cycling, that's 0.1 kWh

    Assume (very generously) that you'd spare 10% of that for charging your battery. No one here would be prepared to spare that much, and we probably work much harder on the bike than the non-enthusiast cyclist population. But let's make the assumption nevertheless.

    So that's 0.01 kWh per day of battery charge, assuming 100% conversion efficiency.

    So you'd need 100 days of commuting to store enough power for just one day of powering your computer. Then there are the lighting, heating, lifts, aircon....

    Seriously man, do your homework. Zero credibility so far.

    Why would a funky bike-with-a-dynamo be better than a solar panel, as others have said? Capture the braking energy, now that is free energy. But good luck devising a mechanism for doing that without adding weight.
    Is the gorilla tired yet?
  • veronese68
    veronese68 Posts: 27,826
    I need my meagre power output for forward propulsion, if I sacrificed any I'd be going backwards.
    Kinesis Pro6
    Marin Nail Trail
    Cotic Solaris
  • kawaspresso
    kawaspresso Posts: 106
    Electric bike that use uranium/coal in most countries, or petrol... hmm I'd rather burn fat.
  • navrig2
    navrig2 Posts: 1,851
    Looks like he is a graduate running a project for his degree or masters degree. The concept would be OK if the cost of the components parts was low enough to have millions of people doing it but I doubt that will happen.

    Meantime here is another safety product for us

    https://www.vmbvoom.com/pitches/leglite

    But I've put £10ķ into this one

    https://www.vmbvoom.com/pitches/christopher-damms
  • danny788
    danny788 Posts: 8
    I don't like people asking for money without specifics. The devil is in the detail. They can take £10k on the basis of emotive speak of free energy and saving the planet. When the design could be nothing more than a big old dynamo a battery with a usb.
  • rolf_f
    rolf_f Posts: 16,015
    964Cup wrote:
    Oh, and it's not free energy, either - about 6.6W of drag, which is 2.64% of my (admittedly feeble) FTP. And (although someone will doubtless correct me) I think the SON Delux is the lowest drag front hub dynamo available. People pay quite significant amounts of money to save 6.6W - think aero wheels, skin suits, aero helmets, ceramic bearings, fancy coated chains etc. So not free energy at all, really.

    To be fair, the drag caused by the SON is, IME, entirely un-noticeable in non-timed riding. Which says a lot about these sort of issues!
    Faster than a tent.......
  • craker
    craker Posts: 1,739
    This looks like a complete non starter. The people I know buying bikes are buying them with batteries and motors for a powered commute (and they use a 'green' argument too) or high end bikes for a very specific ride.

    I can't imagine who'd be in the market for an expensive utilitarian bike whose USP is a charged battery at the end of the ride. Do I need a special fitting in my home to attach it to the National Grid? (I'm not sure how efficient 240v inverters are but add in some transmission losses and you've already run the battery flat.)
  • navrig2
    navrig2 Posts: 1,851
    craker wrote:
    This looks like a complete non starter. The people I know buying bikes are buying them with batteries and motors for a powered commute (and they use a 'green' argument too) or high end bikes for a very specific ride.

    I can't imagine who'd be in the market for an expensive utilitarian bike whose USP is a charged battery at the end of the ride. Do I need a special fitting in my home to attach it to the National Grid? (I'm not sure how efficient 240v inverters are but add in some transmission losses and you've already run the battery flat.)

    Just imagine buildings with thousands (if not millions) of battery connectors all around the ground floor level........ a bit like Photo Voltaic panels...... now there's an idea. :D :roll:

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