electrical power generation using footsteps ppt download
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Ppt download it is very useful .......pl allow me to use this. I need this for my presentation....OK OK OK OK OK
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#2

Man has needed and used energy at an increasing rate for his sustenance and well-being since he came to earth a few million years ago. Primitive man needed energy mainly in the form of food. He derived it by eating plants or animals, which he hunted. He subsequently discovered the fire and his energy needs increased as he began to make use of wood and other biomass to meet the energy requirements for cooking as well as to stay warm. Over time, man began to cultivate land for agriculture. He added a new dimension to the use of energy by taming and training animals to work for him.


With the energy demand, man began to use the wind for sailing vessels and to drive windmills, and the force of water fall to convert water to sailboats and to propel windmills, and The force of falling water to turn water wheels. Up to this point, it would not be wrong to say that the sun was supplying all man's energy needs, directly or indirectly, and that man was using only renewable sources of energy.

BLOCKS DIAGRAM

[Image: footstep.jpg]

OPERATING PRINCIPLE

Below is the complete diagram of step power generation. Only one step is tilted at a small angle that is used to generate power. The thrust power is converted into electrical energy by means of a suitable conducting arrangement. The rack and pinion spring arrangement is fixed to the inclined step. The spring is used to return the inclined step in the same position by releasing the load. The pinion shaft is connected to the bearing by means of end bearings as shown in fig. The larger pinion is also coupled with the pinion shaft, so that the same pinion speed is operating. The larger pinion attaches to the small pinion cycle with the help of the chain (cycle). This larger pinion is used to transfer the rotational force to the smaller pinion. The smaller pinion is running in the same direction of the forward and backward direction of the rotation movement of the larger pinion. This action looks like a cycle pedaling action.

The flywheel and sprocket are also coupled to the smaller pinion shaft. The flywheel is used to increase the RPM of the smaller pinion shaft. The sprocket is coupled to the generator shaft with the help of another sprocket. The generator is used here, it is the permanent generator of the magnet D.C. The voltage generated is 12Volt D.C. This D.C voltage is stored in 12-volt lead-acid battery.

The battery is connected to the inverter. This converter is used to convert the 12 Volt DC Volt to the 230 Volt Voltage. This operating principle is already explained in the previous chapter. This voltage of 230 volts A.C is used to activate the light, fan and etc. By increasing the capacity of the battery and the inverter circuit, the nominal power is increased. This arrangement is installed in a commercial complex, university and wherever large people walk on foot steps simultaneously.
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