ELECTRICAL POWER GENERATION USING FOOT STEP
ABSRACT
In this project we are generating electrical power as
non-conventional method by simply walking or running on the foot step. Non-conventional energy system is very
essential at this time to our nation. Non-conventional energy using foot step needs no input
power to generate the output of the electrical power. This project using simple drive mechanism
such as rock and pinion assemble and chain drive mechanism.
For this project the conversion of
the force energy in to electrical energy. The control mechanism carries the rack
& pinion, D.C generator, battery and inverter control. We have discussed the various applications
and further extension also.
INTRODUCTION
Man has needed and used energy at an
increasing rate for his sustenance and well being ever since he came on the
earth a few million years ago. Primitive
man required energy primarily in the form of food. He derived this by eating plants or animals,
which he hunted. Subsequently he
discovered fire and his energy needs increased as he started to make use of
wood and other bio mass to supply the energy needs for cooking as well as for
keeping himself warm. With the passage of time, man started to cultivate land
for agriculture. He added a new
dimension to the use of energy by domesticating and training animals to work
for him.
With further demand for energy, man
began to use the wind for sailing ships and for driving windmills, and the
force of falling water to turn water for sailing ships and for driving
windmills, and the force of falling water to turn water wheels. Till this time, it would not be wrong to say
that the sun was supplying all the energy needs of man either directly or
indirectly and that man was using only renewable sources of energy.
WORKING PRINCIPLE
The complete diagram of the foot
step power generation is given below. Only one step is inclined in certain
small angle which is used to generate the power. The pushing power is converted
into electrical energy by proper driving arrangement. The rack & pinion,
spring arrangement is fixed at the inclined step. The spring is used to return
the inclined step in same position by releasing the load. The pinion shaft is
connected to the supporter by end bearings as shown in fig. The larger sprocket
also coupled with the pinion shaft, so that it is running the same speed of
pinion. The larger sprocket is coupled to the small cycle sprocket with the
help of chain (cycle). This larger sprocket is used to transfer the rotation
force to the smaller sprocket. The smaller sprocket is running same direction
for the forward and reverse direction of rotational movement of the larger
sprocket. This action locks like a cycle pedaling action.
The
fly wheel and gear wheel is also coupled to the smaller sprocket shaft. The
flywheel is used to increase the rpm of the smaller sprocket shaft. The gear
wheel is coupled to the generator shaft with the help of another gear wheel.
The generator is used here, is permanent magnet D.C generator. The generated
voltage is 12Volt D.C. This D.C voltage is stored to the Lead-acid 12 Volt
battery.
The battery is connected to the
inverter. This inverter is used to convert the 12 Volt D.C to the 230 Volt A.C.
This working principle is already explained the above chapter. This 230 Volt
A.C voltage is used to activate the light, fan and etc. By increasing the
capacity of battery and inverter circuit, the power rating is increased. This
arrangement is fitted in shopping complex, college and wherever the large
people walking on the foot steps simultaneously.
ADVANTAGES
Ø Power generation is simply walking on
the step
Ø Power also generated by running or exercising
on the step.
Ø No need fuel input
Ø This is a Non-conventional system
Ø Battery is used to store the generated power
DISADVANTAGES
Only applicable for the particular
place. Mechanical moving parts is high Initial cost of this arrangement is
high. Care should be taken for batteries
APPLICATIONS
Power generation using foot step can
be used in most of the places such as
colleges, schools, cinema theatres, Shopping complex and Many other buildings. 
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