Converting sound energy into

Electrical energy using piezo electric material

Electrical

Energy

Solar energy

Thermal

energy

Hydro energyWind

energyChemical energy

Tidal energy

Common alternative Source of energies

Do you ever heard about conversion of sound

energy to electrical energy?

Example?

Micro Phone

SoundForm of vibrational energy that propagates through all mediums except in vacuum.

Which material will convert

sound energy to electrical?

Piezo electric material

How it works ?When the material is Stressed, the mechanical strainenergy gets converted into electrical energy

What happens when stress is applied?

Do the all piezo electric material will convert sound energy to electrical energy? NOMaterials like quartz, bone, DNA could not able to convert as they are formed

naturally But artificially materials like zinc oxide( commonly known as calamine lotion),

Lithium niobatet etc..,

How Generally current produces?

Methodologies suggested

Method 1: Force (sound)

Method 2:

Sound Heat Electricity

Method 3

Sound Piezo Electric Electricity

How much energy could we produce?

For Each 100 dB we get 0.5V

1000 dB 5 Volts

By this voltage we can easily charge our home applianceslike mobile etc..,

where can we harvest sound ?

every where around us .. IndustriesThermal plantsNuclear plants Explosions

RoadsAuditorium

Conclusion :Sound is not continuous form of energy source and difficult to harvest but with help of piezo electric material it can be over come.

References: International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 –6340(Print), ISSN 0976 – 6359(Online) Volume 5, Issue 1, January (2014), © IAEME INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET) [1] J. Kymissis, C. Kendall, J. J. Paradiso, and N. Gershenfeld, “Parasitic power harvesting inshoes,” in Proc. 2nd IEEE Int. Conf.Wearable Computing, Los Alamitos, CA, Aug. 1998,pp. 132–139.

[2] N. S. Shenck and J. A. Paradiso, “Energy scavenging with Shoe-mounted piezoelectric,”IEEE Micro, vol. 21, no. 3, pp. 30–42, May-Jun. 2010.

[3] S. Roundy, “The power of good vibrations,” Lab Notes- Research from the College ofEngineering, University of California, Berkeley, vol. 2, no. 1, Jan. 2012.

[4] N. W. Hagood IV et al., “Development of micro-hydraulic transducer technology,” in Proc.10th Int. Conf. Adaptive Structures and Technologies, Paris, France, Oct. 2013, pp. 71–81.

Thank you