1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

generating alternative energy from speed breakers(speed bumps)

Discussion in 'Alternative Energy' started by djrulz, Aug 21, 2008.

  1. djrulz

    djrulz New Member

    Joined:
    Aug 21, 2008
    Messages:
    2
    Likes:
    0
    our grp is planning to make a project on generating energy through speed bumps by converting pressure into electrical energy
    so as we got the result that it will need lots of mechanism and motoring work
    can we use hydraulics of some technique
    if there is any simplest way then pls reply:confused:(in hurry!)

    if the energy gets absorbed by the shock absorbers some energy could be converted na

    i thinging scientifically the energy can be amplified too using stored energy

    but we want too know that how this can be done
    which mechanism must be used for that........any mechanism or some thing
     
    Last edited: Aug 25, 2008
  2. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

    Joined:
    Nov 17, 2003
    Messages:
    39,329
    Likes:
    653
    Location:
    Derbyshire, UK
    There's already a thread about this - it's a stupid idea, and everyone hated it.
     
  3. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

    Joined:
    Jan 4, 2007
    Messages:
    21,238
    Likes:
    645
    Location:
    Ex Yorks' Hants UK
    The shock absorbers will dampen/absorb most of the energy from a speed bump,
    do you plan to remove the shock absorbers from the vehicle.:confused:

    I would suggest you redirect your energy into a more feasible project.:)
     
    Last edited: Aug 22, 2008
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. Torben

    Torben Well-Known Member

    Joined:
    Oct 6, 2006
    Messages:
    2,507
    Likes:
    34
    Location:
    B.C., Canada

    Also, the energy has to come from somewhere. In this case it comes from the vehicles. The vehicles get their energy from fuel. Someone has to pay for that fuel: the driver.

    It's simpler just to tax the drivers directly. :)

    I guess you could put the speed bumps at the bottom of a hill. Then some of the energy could come from gravity. The drivers might not appreciate it, though. :) They'd brake and waste the energy heating up their brake pads.


    Torben
     
  6. Tedfred

    Tedfred New Member

    Joined:
    Nov 1, 2009
    Messages:
    21
    Likes:
    0
    Location:
    santa cruz
    I hate speed bumps, but love your creative thinking. Hear is what I think that you could have. A 2000 pound car will run over a plate that lover itself 1 or 2 inches each time a set of tires rolls over it. So in simple the plate move two inches of travel at 1000 pounds of pressure for the front set of tires and the same for the back tires. Also the roll overtime is very short. (a part of a second) finding a device that can generate current with the specs above can be difficult. So maybe the plate can have a spring that takes a 1000 pounds to compress it. After the car is gone the spring would attempt to uncoil. The slower upward movement of the plate would have time to generate heavy current. (most of a second) The exact mechanism can be hydraulics or a gear train or bell crank to turn the very short 2 inch stroke into something longer that could generate a heavy current. Here is an interesting side effect. If the load is light the bump would softer. If the load is heavy the bump would herder. Oops I wrong! Would have to remove spring and generate current in the downward motion. Anyway some more thinking is required.
     
  7. tcmtech

    tcmtech Well-Known Member Most Helpful Member

    Joined:
    Feb 22, 2009
    Messages:
    6,701
    Likes:
    432
    Location:
    Sawyer, North Dakota, USA
    The fatal flaw in the design is that the actual energy that could be captured that way is surprisingly small. A few watt hours at best.
     
  8. HarveyH42

    HarveyH42 Banned

    Joined:
    Feb 25, 2006
    Messages:
    3,442
    Likes:
    18
    Location:
    Not Here
    How about something like those flashlights (torches) that you shake? Mostly just a coil of wire and a magnet.
     
  9. 3v0

    3v0 Coop Build Coordinator Forum Supporter

    Joined:
    Jul 14, 2006
    Messages:
    9,404
    Likes:
    227
    Location:
    OKLAHOMA USA
    Heck yeah. Take the shocks off the car and fit it with a bunch of the little generators.

    It was a bad idea 2 years ago. It has not improved with age.

    3v0
     
  10. HarveyH42

    HarveyH42 Banned

    Joined:
    Feb 25, 2006
    Messages:
    3,442
    Likes:
    18
    Location:
    Not Here
    Not what I had in mind, fit the speeds bumps with the generators. The car already has a generator, why add more? The bumps at work see a lot of traffic, and a few streets I travel to get there. Not sure if you can get much useful power this way, I have a few of those flashlights, and they don't work so well, but might be the batteries are gone bad (reason they were given to me).
     
  11. supasoaker

    supasoaker New Member

    Joined:
    Apr 15, 2010
    Messages:
    6
    Likes:
    0
    i don't think it is a bad idea to use the suspension to generate usable energy but it isn't going to make very much which makes it less economically viable.

    even so I like the idea in principle and wouldn't mind something where any movement of the suspension could be used to generate some form of energy. It might be something to be seen far into the future.

    My current car uses a system called Hydragas which has been put on many british cars and is a passive hydraulic system. It takes the majority of the hit whilst the damper assists. Something like this could be adapted fairly cheaply but again I don't think much energy could come from it, but it could be related to the role of wind energy for example - it isn't reliable but when its there can have a good role to play as it would save gas if your alternator has to do less work (for example).

    Indeed, a magnetic form of recovery might be the easiest but there could be a lot of wastage as if there are coils these may need to be energised which will use up energy rather than provide it.
     

Share This Page