Project Name : Redesigning the hydro electric and fractions
Theme Name : Natural Resource & their Conservation
Theme Name : Energy of the Future
Objective: To modify the present structures of hydroelectric dams. So that maximum amount of potential energy of the water of the water in a dam can be
exploited thus increasing the energy output.
Scientific Principle Involved: This model basically uses the principles of up thrust produced by water it also makes use of the principle of water by which it experts pressure on an object immersed in it.
Materials Used: Glass, thermocol, clinical syringes, flexible pipe, D.C motors, electric wires, galvanometer, waste parts of a few toys.
Working: The model consists of a partially airtight enclosure to be built at the bottom of a dam connected to the barrier of the dam. The enclosure has certain inlets and outlets for both air and water. One of the most important parts of this model is a rectangular floating structure about the size of the cross section of the main container. This rectangular structure is called the floating diaphragm made of a strong and light material this structure is suspended in the enclosure by hydraulic pistons (for smooth movement) which allow it to move vertically up and down.
At first water is let into the enclosure allowing the water of the dam to push the diaphragm downward with great force. The air beneath the diaphragm gets pressurized and is let out and a turbine is turned using this pressure. When the air beneath is let out water enters exerting up thrust on the diaphragm causing it to move up by regulating the inflow and outflow of water the diaphragm can be made to move vertically up and down systematically the upward and downward
movement of this diaphragm moves the hydraulic pistons which in turns the turbines specially placed on top..
Utility and Further Scope of the Project: The design of this model can be used to modify the structures of existing hydro-electric dams. It is mostly useful in the rainy season as the design makes it possible to let out water continuously but slowly reducing the pressure on the water barrier. If this design is implemented in every dam that is going to be built India can possibly avert the energy crisis. There are yet a few engineering difficulties to construct this design but with
expert help we can perfect the design with proper funding even build a life size model!
Name of the School: Little Rock Indian School, Udupi, Karnataka.
