If understand what you are suggesting, you could make a small, hinged ramp connected to an air pump --like a foot operated air pump. As cars go over the ramp, they would create compressed air, which could be piped to your house for useful work. It would be kind of like an energy toll that you would collect from every car that passed your house.
As for your poll, how to you differentiate between EMI law and generator?
John
hello friends,
I am diploma student n wanted to work on a new idea for my final year project. The idea is 'Energy generation from motion of speed breaker'.
Primarily i thought of the law of electro-magnetic. i was going to make the speedbreakar movable in the vertical direction using springs or some assembly.when car will pass over it it will move electromagnet which will induce flux(Φ) in the coil present in front of it n this energy will be stored.
secondarily i came across idea of pressure sensor or transducer which will sense the pressure of tires n generate an active signal which will give rise to energy generation.
Third idea is pressure of vehicles will be transferred to generator mechanism through hydraulic system n then gears(as in windmills) Due to applied force rotor will rotate as in generator n energy will be stored.
so can anybody tell me which of the above ideas will work practically?
which one will be more efficient n reliable to work on?
or any other way i can do same thing?
Electro magnetic speed breaks are widely used in fair ground rides to stop the ride.
It works on the basic idea of induction. The carriage usually has a big strip of copper along its underside. This passes through a strong magnetic field created by electro magnets but just as easily be created by perm magnets.
As the copper passes through the magnet a current is induced proportional to the speed of the carriage. This creates an opposing magnetic field and slows the carriage.
This effect can be seen if you drop a strong magnet down a copper pipe – a good party trick It looks like the magnet has disappeared (until about 10 seconds later it drops out)
Any way that was how magnetic speed breaks work,
How much energy would you like to create, a wide range of small micro generators for embedded wireless sensors have been created and are being used on oil rigs and other high spec – volatile environment applications.
If your happy with a few mW try looking up MEMS vibration energy harvesters, many papers have been published on this and equally many have be produced commercially. It is essentially a “speed break” as it damps any vibrations within the system.
If understand what you are suggesting, you could make a small, hinged ramp connected to an air pump --like a foot operated air pump. As cars go over the ramp, they would create compressed air, which could be piped to your house for useful work. It would be kind of like an energy toll that you would collect from every car that passed your house.
As for your poll, how to you differentiate between EMI law and generator?
John
Can i ask what your ment to be powering?
Also who really want to put big bumps in the road, there are many other energy harvesting methods that are less of an annoyance.
just asking
That's why I called it a toll road.
Sorry, I missed several posts due to no e-mail notification. I like the air pump idea, because with electricity, you will either have to use it immediately or have a way to store it. Compressed air is easy to store and can be used as a power source directly. Drills, hammers, etc. can all run on air. It is safe, leads to light weight tools, and spark free. You can also use it to run a generator/dynamo. John
I'm not confused by the idea of turning movement into energy generation ... i did a big project on this kind of technology in my disertation - i used electro magnetic methods and vibrating cantilever beams.
However what do you want to power with this? is it a one shot application, or will it need to store energy. How much energy will it need?
Basicly i'm asking what are you trying to do other than generate energy.
All of these 'energy harvesting' methods involve stealing energy from others who have already generated it for their own use.
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