Transformation of acoustic energy into electrical energy in a smart window: Model and investigation

Abstract

This study focuses on the results obtained by the transformation of acoustic energy in the form of vibrations into electrical energy. The vibrations are transmitted from outdoors through a window glass covered with piezoelectric material. Only one side of the window glass is covered with piezoelectric material at certain positions. The paper also presents a mathematical model to describe the transformation of acoustic energy into electrical energy. The results obtained from the numerical experiments are used to determine the dimensions of the piezoelectric film and their optimum positions on the glass for electricity generation. The correct placement of piezoelectric material on the glass generates electrical energy of approximately 10 mV. The use of smart materials in window glass allows the management of acoustic energy.