FOOTSTEP POWER GENERATION SYSTEM

Prepared by- AmarELECTRICAL AND ELECTRONICS ENGG.

NOIDA INSTITUTE OF ENGINEERING AND TECHNOLOGY,GREATER NOIDA

CONTENTS INTRODUCTION COMPONENTS MATERIAL SELECTION WORKING ADVANTAGES APPLICATIONS CONCLUSION

INTRODUCTION In this system 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.

Nonconventional   energy  using  foot   step   is converting mechanical energy into the electrical energy.

COMPONENTS LEVER RACK AND PINION SHAFT BALL BEARING RATCHET GEAR FLYWHEEL DC GENERATOR BATTERY INVERTOR

COMPONENTS OF FOOT STEP POWER GENERATION

1. LEVERA lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge.

It is the simplest machine which is basically used to reduce the human effort.

2.RACK AND PINION

Rack and pinion is used to convert linear motion to rotary motion.In foot step energy generator generally pinion consists of 12 teeth and pitch circle diameter is 1 inch.Rack is 45.2 cm long and consists of 50 teeth.

3.SHAFTShaft is a mechanical component for transmitting torque and rotation.In foot step energy generator pinion and ratchet gear are mounted on the same shaft.

4.BALL BEARINGThe purpose of ball bearing is to reduce rotational friction and support radial and axial loads.The diameter of inner ring is 2.5cm.

5.RATCHET GEARA ratchet gear a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction.

6.FLYWHEELA flywheel is a rotating mechanical device that is used to store rotational energy.In foot step energy generator flywheel is used to drive the DC generator which produces the electrical energy.

7.DC GENERATORIt is an electrical device which is used to convert mechanical energy into electrical energy.

30 volt DC generator has been used in foot step energy generator.

MATERIAL SELECTIONMild steel is a type of steel that contains small amount of carbon and other elements. It is softer and more easily shaped than higher carbon steels. It also bends a long way instead of breaking because it is ductile.

Mild steel is a carbon steel which contains0.25% Carbon 0.4%-0.7% Manganese 0.1%-0.5% silicon

COMPLETE ASSEMBLY

WORKING• The complete diagram of the foot step power

generation is given below. 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 generator is used here, is permanent magnet D.C

Stepper Motor. The generated voltage is 12 Volt D.C. This voltage is further amplified using DC-DC convertor and 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 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•Reliable, Economical, Eco-Friendly.•No need of fuel input.•This is a non-conventional system.•Battery is used to store the generated power.

APPLICATIONSPower generation using foot step can be used in most of the places such as:-

• Colleges,• Schools,• Cinema theatres,• Shopping complex• Railway stations• Airports• Bus stand, etc.

CONCLUSION•Foot step energy generator is suitable for small amount of power generation such as charging cell phones, door lightnining and hoarding street lamps.•For efficient working it should be used where people walk frequently such as malls, foot paths, railway stations, etc.

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