Power from Vehicle Movement on Bridges

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GRØN DYST 2014 Technical University of Denmark

Power from Vehicle Movement on Bridges
Paper
Author:A.M. Author (DTU Chemistry, Technical University of Denmark, Denmark)
S.O. Ishe (DTU Chemistry, Technical University of Denmark, Denmark)
S.O. Iisshe (DTU Mechanical Engineering, Technical University of Denmark, Denmark)
Date: 2014-06-27     Track: Main     Session: 1

The quest for non conventional sources of electricity is a continuous one and any idea that sounds feasible and can generate electricity without fossil fuel is always welcome. Further, if such electricity can be sourced without actual consumption of any materials and without any adverse effect on the environment, it is an additional bonus. This note elaborates a source of electricity that is very unique and original. The generation of electricity takes place when a loop of wire or disc of copper is made to rotate between the poles of a magnet. In this process, mechanical energy is converted into electrical energy. This is the most popular method of generating electricity. Infrastructure development has been a major factor in India’s growth story. An important aspect of this has been the construction of highways and other roads across several parts of the country. Considering the vastness of the country, such highways have also needed many bridges across rivers and low lying areas. The bridges along high ways as they are constructed in modern times consist of RCC / Pre-stressed concrete deck with joints on piers (Expansion Joints) to allow for thermal expansion. These gaps are filled with expandable materials to accommodate thermal expansion / contraction. In the proposed system, this gap will be filled up by a special rubber that will have special elastic properties. Every time a vehicle moves on the bridge and passes over the rubber in the gap, the rubber strip is pushed downwards and comes up again due to this elasticity. This up-down movement of the rubber strip when converted to rotary motion can be used to generate electricity.