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Korea Constructs Road That Wirelessly Charges Moving Electric Buses

Discussion in 'Science & Technology' started by Sasqui, Aug 14, 2013.

  1. RejZoR

    RejZoR

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    The only problem is that electricity doesn't just fall from the sky. And that's the main problem with all the eco maniacs and fanatics. They apparently all think electricity is generated by magic pixies. There are still loads of gas and coal power plants, nuclear reactors and even renewable resources like hydro energy doesn't come with its price tag. Hydro power plant dams also alter ecosystems significantly even though they don't directly polute them.

    Besides, what they invented is basically a cordless tram and many cities still use buses that run on wires (i remember i've seen them in Budapest, Hungary few years ago). All they did was move the wires from above into the ground. Interesting but not all that new... it's just that technology matured enough to do it now.
    de.das.dude says thanks.
  2. Frick

    Frick Fishfaced Nincompoop

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    The first paragraph is obvious and is not something that is forgotten, at least not here. Where electricity comes from is a huge deal. The second paragraph is not correct. Such trams are trains, these are normal electrical vehicles that can drive anywhere but are charged on the go.

    I really don't see why people feel a need to "simplify" advances.
  3. de.das.dude

    de.das.dude Pro Indian Modder

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    as sasqui already said, its induction.

    also, google for energy losses in power transmission.
    that will give an idea of just how much power is wasted in just getting the electricity to that point.


    the problem with "green people" are that they think, since electricity is cheap, it must not be burning a lot of fossil fuels :/
  4. de.das.dude

    de.das.dude Pro Indian Modder

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    that argument is not entirely true. take your gizmo charger for example..

    there is a step down transformer in it that goes from the outlet voltage to a lower voltage nearer to the charging voltage (5V)
    even if you dont have something being charged, it will still consume power.
  5. m1dg3t

    m1dg3t

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    Phantom draw? das.dude

    Somewhere, Nikola Tesla is saying "It's about fucking time!" :banghead:
  6. Frick

    Frick Fishfaced Nincompoop

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    Which it shouldn't, and that is a big part of that discussion.
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  7. Easy Rhino

    Easy Rhino Linux Advocate

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    it's too early to know if this idea is going to be viable in the U.S.
  8. lyndonguitar

    lyndonguitar I play games

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    Science Fiction turns to Science
  9. newtekie1

    newtekie1 Semi-Retired Folder

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    Thats the maximum, but what is the real efficiency? I just don't see this being a benefit over what other systems are already doing with quick chargers that the bus automatically connects to along the route when it is stopped.

    Besides the efficiency issue there is also the issue that the road has to be tore up and replaced to put the system in. I'm sure this is a much larger cost compared to installing new bus stops with built in chargers.
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  10. Frick

    Frick Fishfaced Nincompoop

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    Note that only 5-15% of the lenght needs that actual cabling. Besides, roads require maintenance anyway, this would take some long term planning anyway and in that time frame it's probably not that difficult to schedule it.
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  11. RejZoR

    RejZoR

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    It is correct. I don't know where else they also use them but i've seen them in Budapest. It looked like a normal bus with a "fork" looking thing on a top that connects to the wires above the road. The thing has quite a lot of reach so it can drive pretty much freely on the designated road. The bus had normal rubber wheels and it wasn't on rails or anything.
  12. Sasqui

    Sasqui

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    Not much is viable in the US... states can't even agree on a comprehensive rail system. It's a joke.
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  13. de.das.dude

    de.das.dude Pro Indian Modder

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    i lol'd
  14. sno.lcn

    sno.lcn

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    Depends on how you're generating the electricity ;)
  15. Sasqui

    Sasqui

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    It really is sad. We've got an old infrastructure (including a political one) that makes progress akin to swimming in pudding.
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  16. Chevalr1c

    Chevalr1c

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    ALthough it did make me think of a trolley bus as well, it simply isn't. Trolleybuses cannot take detours if certain streets are under maintenance, this bus can (it is not fully dependant on a constant electricty supply).

    About the energy thing trolley busses use less energy on a macro level than diesel busses, as long as they are lighter (achievable, I suppose, if there are no fuel tanks/batteries) their increased efficiency over cumbustion based vehicles willl help conserving energy. And EVs are needed to be able to step away from fossil fuels because most renewable energy that is actually standing a chance (solar, geothermal, maybe nuclear fusion) leads to the need to use that energy in form of electricity.
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  17. Jstn7477

    Jstn7477

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    San Francisco has electric trolley buses as well using overhead wires. I rode on a few back in 2009 when I visited that city. They even still have the classic cable cars as well.

    Last edited by a moderator: Nov 20, 2013
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  18. theoneandonlymrk

    theoneandonlymrk

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    I dont know about that, if it works and is efficient enough, england would be hammered with them all over the place.
    manchester has a extensive tram network too which is being extended even now so they clearly could be bothered doing the hardwork of installing it if there was a benefit obv:)
  19. de.das.dude

    de.das.dude Pro Indian Modder

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    its really sad that you guys have lost that awesomeness of the trains you had before. ive seen some line and they are in need of maintenance....
    though the amtrak lines and the underground look good.
  20. newtekie1

    newtekie1 Semi-Retired Folder

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    Tearing up 5-15% of the roads in a busy metropolitan area all at once is not something that is feasible in a lot of areas. Especially when I don't see a benefit to this over some of the systems that are already being put in place where the bus connects to a rail system when it stops at the stops and it is quick charged for 30-60secs while it is stopped, and the rail system is providing a pretty constant 95%+ transfer efficiency. I believe there is already a system like this in place in LA or somewhere in CA.
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  21. Sasqui

    Sasqui

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    It's a mess and formerly subsidized Amtrack is not healthy. Here's a blurb from Wiki:

    http://en.wikipedia.org/wiki/Rail_transportation_in_the_United_States

    A recent and sad article about Amtrack losing subsidies (that they enjoyed for more than a few decades): http://www.nytimes.com/2013/05/03/u...sion-on-local-routes.html?pagewanted=all&_r=0
  22. Frick

    Frick Fishfaced Nincompoop

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    Which is why this would probably be something that would be implemented over time. Also think about longer streches of road outside the metropolitan areas with heavy traffic, and the major shipping roads. Not just for busses, but trucks as well (which is what Volvo is working on).
  23. CounterZeus

    CounterZeus

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  24. Easy Rhino

    Easy Rhino Linux Advocate

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    if we could harness the power of mailman's fap sessions i believe we could solve this problem rather easily.
    Sasqui says thanks.
  25. de.das.dude

    de.das.dude Pro Indian Modder

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    well, there is your problem. its not the self sufficient. it needs to be run on subsidies.
    plus rail travel is not popular cross country, most people rather drive(which is faster since the trains run on slow lines) or go by air which i think will cost about the same.

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