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Home News Power Sector News Vadodara Engg students produce power from sound

Vadodara Engg students produce power from sound

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Sound wavesA professor's rap that if noise could be used to produce electricity their class would generate most power was enough to set three boys of an engineering college in Vadodara on their mission. The aim was to research if power can actually be produced from noise. And, they succeeded in making a prototype which lights up a zero-watt LED when connected to an amplifier playing their favourite Bollywood songs!

Darshan Thakkar, Sushil Abhichandani and Pranav Patel, all seventh semester students, had also participated with their model at IIT, Bombay's Techfest which was held this January. "Noise produced in cinema houses, heavily congested traffic junctions and garba grounds can be used to generate power which can light bulbs and charge batteries. Higher noise levels will generate more power", said Darshan.

The three engineers-in-the-making have also readied the re-port on 'Utilization of noise for production of electricity'. It to-ok them five odd months to wo-rk on the idea and develop a prototype. "We have been able to lig-ht up a zero-watt LED and the motor of a small toy with the prototype", said Darshan.

Explaining its functioning, Darshan said, "Noise is detected by an equipment called woofer. We attached a magnet behind the woofer and wound a copper coil around the magnet. Due to noise, there is vibration in the woofer and it moves back and forth. Because of the movement of the woofer, magnet will also move in the same fashion as the woofer, thus producing electro-magnetic force (EMF) generated via the copper coil. This EMF is generated due to Faraday's law of electromagnetic induction", said Darshan.

"This EMF or voltage is converted into constant voltage and constant frequency by using specific power electronic device. By using this constant voltage, we could charge the battery or light up a low voltage bulb or LED. We can also use this energy for driving a desired electrical application", said Darshan. The students have credited their teachers - ND Makwana, Manish Pandya and Archana Nanoti - for their guidance.


Source - Times of India

 

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