INFLUENCE OF MAGNETIC FIELD ON THE PERFORMANCE OF THE TRIBOELECTRIC NANOGENERATOR

Document Type : Original Article

Authors

1 Department of Mechanical Design and Production Engineering, Faculty of Engineering, Cairo University, Giza, Egypt.

2 Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, Minia 61111, Egypt.

3 Mechanical Engineering Dept., Faculty of Engineering, Suez Canal University, EGYPT.

Abstract

The present study aims to develop the performance of the triboelectric nanogenerator (TENG) based on triboelectrification and magnetic field. PP and steel sheets of different thicknesses were inserted between the contact area and the magnets to investigate the effect of the distance separating them on the generated voltage.
 
It was found that the generated voltage drastically decreased with increasing PP sheet thickness. Besides, position of the magnets relative to the contact area has insignificant effect on the generated voltage. In sliding, voltage showed higher values than that observed for contact-separation. While voltage significantly increased with increasing the thickness of steel sheet. Longitudinal sliding produced higher voltage values than transverse sliding and contact-separation. Finally, it is proposed to use steel sheet to induce an extra magnetic field to increase the external voltage. In condition of using nonmagnetic material such as PP, the distance between the magnet and the contact area increases then the magnetic field lines become larger and consequently the number of magnetic field lines passing through the contact area decreases leading to the decrease of the magnetic field.

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