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Energy Harvesting via Piezoelectricity

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Author(s): Tanvi Dikshit | Dhawal Shrivastava | Abhijeet Gorey | Ashish Gupta | Parag Parandkar | Sumant Katiyal

Journal: BVICAM's International Journal of Information Technology
ISSN 0973-5658

Volume: 2;
Issue: 2;
Date: 2010;
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Keywords: Energy Harvesting | Piezoelectricity | Piezoelectric Windmill | Increased Bandwidth Piezoelectric Crystal

ABSTRACT
In the present era, wireless data transmission techniques are commonly used in electronic devices. For powering them connection needs to be made to the power supply through wires else power may be supplied from batteries. Batteries require charging, replacement and other maintenance efforts. For example, in the applications such as villages, border areas, forests, hilly areas, where generally remote controlled devices are used, continuous charging of the microcells is not possible by conventional charging methods .So, some alternative methods needs to be developed to keep the batteries full time charged and to avoid the need of any consumable external energy source to charge the batteries.. To resolve such problems, Energy harvesting technique is proposed as the best alternative. There exists variety of energy harvesting techniques but mechanical energy harvesting happens to be the most prominent. This technique utilizes piezoelectric components where deformations produced by different means are directly converted to electrical charge via piezoelectric effect. Subsequently the electrical energy can be regulated or stored for further use. The proposed work in this research recommends Piezoelectricity as a alternate energy source. The motive is to obtain a pollution-free energy source and to utilize and optimize the energy being wasted. In this paper two important techniques are stressed upon to harness the energy viz Piezoelectric Windmill and Increased Bandwidth Piezoelectric Crystal. Current work also illustrates the working principle of piezoelectric crystal and various sources of vibration for the crystal.
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