POWER GENERATION USING

PIEZOELECTRIC TRANSDUCERS IN

FOOTSTEPS

Project Members:

MELWIN DMELLO 4AL13ME418

SANJAY G S 4AL13ME420

SUSHMA 4AL13ME427

VINOD KUMAR 4AL13ME435

Project Guide :

Asst. Prof. ARUN KUMAR D T

MECHANICAL ENGINEERING

AIET, MIJAR

1. Introduction

2. Piezoelectric transducer

3. working

4. Applications

5. Advantages

6. Disadvantages

7. Estimated cost

contents

Introduction

Now a days, electricity has become a need of every single human, demand of electricity increasing day by day.

This new generation needs lots of electrical power for their different operations. There are various ways to generate electricity.

The use of piezo-electric crystal is to produce the electric output from surrounding vibrations.

These materials have the ability to absorb mechanical energy from their surroundings.

usually ambient vibration and transform it into electrical energy that can be used to power other devices.

Piezoelectric transducer

The piezoelectric material converts the pressure applied to it into electrical energy.

The source of pressure can be either from the weight of the moving vehicles or from the weight of the people walking over it.

The output of the piezoelectric material is not a steady one. So a bridge circuit is used to convert this variable voltage into a linear one.

Again an AC ripple filter is used to filter out any further fluctuations in the output.

The output dc voltage is then stored in a rechargeable battery.

Working

Working of piezo electric sensor

In a survey Israel is putting PEG 6cmunder the road level and at a distance of 30cm apart. From this trial, it has been seen that a vehicle weighing at around 5 tons can generate 2000V, and a 1Km cluster of such generator can generate 400Kwh energy. If 600vehicles are allowed to go through this road for an hour, it can power up to 600-800 homes

Applications

Roads, highways and railways

This is the important place which is responsible for generation of large energy as the huge amount of pressure is exerted by crowd on the footpaths. The embedded piezoelectric crystals at the footpaths & steps where people make contact with the footpath and these materials get excessive pressure and force, because of this greater amount of energy is stored.

Power Generating in foot steps

Platforms / Footpath is most

common place on where we embed

the piezoelectric tiles to produce

the small amount of energy by

utilizing the human footstep over it.

The produced charge is stored in

battery and then that stored charge

can be use for charging low power

electronic devices.

Power Generating from Platforms

It is eco friendly and produce no pollution to environment.

Light weight and is easy to operate.

Manufacturing cost is less and hence it proves to be economical.

Piezoelectric transducers can be obtained in larger sizes.

Advantages

Since the transducer material is delicate, it needs to be handled carefully.

As the voltage produced is less, additional equipments are needed for the working.

Disadvantages

PARTICULARS TOTAL COST

• Piezoelectric transducer,

• Fabrications materials,

• Inverter

• Electronic circuits,

• Battery charging unit

• Wires and attachments

• DC battery,

• Transportation cost

45000 - 50000

Estimated cost