The demand for power is increasing enormously....

So there is a need to generate power from every possible means rather than solely depending on power generaton from power plants..

Hence i would like to present an idea of generatng electric power at low cost using simple mechanism of converting mechanical energy to electrical energy..

The idea is '"Generating electric power from speed breakers"

>i.e, To generate electricity using the vehicle weight (potential energy) as input...As already known we need a generator to generate electricty and obviously the prime mover to it will be the vehicle weight.


then the generated elecctricity is stored in batteries and will be further used for various purposes like lighting up the street lamps, providing power to the nearby slums at low cost etc...


>Thus this project accomplishes

Low Budget electricity production
—Less floor area
—No obstruction to traffic
—Easy maintenance
—Suitable at parking of multiplexes, malls, toll booths, signals, etc.
—Uses: Charging batteries and using them to light up the streets, etc.
Possible using 3 different mechanisms:
I.Crank-shaft mechanism
II.Roller mechanism
III.Rack- Pinion mechanism
Rack-pinion mechanism is better to prefer because of the following reasons::
>>Crank-shafts are required to be mounted on bearings which creates balancing problem leading to mechanical vibrations which in turn damage the bearings.
  —Secondly as bearings are of sliding type, any occurrence of variable load( which is bit obvious in caseof    vehicles!!) leads to balancing problem
>>Roller mechanism has some different disadvantages.
  —Maintenance will be very difficult
  —Might cause collision.
>>Rack-Pinion assembly gives good mounting convenience
  — Maximum gear losses– 3 to 5%
  —Efficiency– 95%
>>A dc generator whose shaft is coupled to the roller mechanism is used for
                                                                           generating electrical output.
             Selection of springs.
   —Achieving proper balance of speed and torque....should be taken care to yield better efficiency..
Future Scope::
Such speed breakers can be designed for heavy vehicles, thus increasing input torque and ultimately output of generator.

   More suitable and compact mechanisms to enhance efficiency.

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Fri, 06/05/2011 - 23:50