Organic Piezoelectric Energy Harvesters in Floor

Abstract:

Article Preview

The design, fabrication and testing of piezoelectric energy harvesting modules for floors is described. These modules are used beneath a parquet floor to harvest the energy of people walking over it. The harvesting modules consist of monoaxial stretched PVDF-foils. Multilayer modules are built up as roller-type capacitors. The fabrication process of the harvesting modules is simple and very suitable for mass production. Due to the use of organic polymers, the modules are characterized by a great flexibility and the possibility to create them in almost any geometrical size. The energy yield was determined depending on the dynamic loading force, the thickness of piezoelectric active material, the size of the piezoelectric modules, their alignment in the walking direction and their position on the floor. It was possible to generate up to 2.1mWs per pulse with loads of about 70 kg using a specific module design. An increase of the energy yield at higher loading forces and higher thicknesses of the modules is possible in general. Furthermore a test floor was assembled to determine the influence of the size, alignment and position of the modules on the energy yield.

Info:

Periodical:

Advanced Materials Research (Volumes 433-440)

Edited by:

Cai Suo Zhang

Pages:

5848-5853

DOI:

10.4028/www.scientific.net/AMR.433-440.5848

Citation:

E. Bischur and N. Schwesinger, "Organic Piezoelectric Energy Harvesters in Floor", Advanced Materials Research, Vols. 433-440, pp. 5848-5853, 2012

Online since:

January 2012

Export:

Price:

$35.00

[1] Takefuji, Y., Known and Unknown Phenomena of Nonlinear Behaviors in the Power Harvesting Mat and the Transverse Wave Speaker, Proc. NOLTA 2008 Intl. Symposium on Nonlinear Theory and its Applications, 239-244 (2008).

[2] http: /www. innowattech. co. il/index. aspx.

[3] http: /www. sustainabledanceclub. com.

[4] Kawai, H., The Piezoelectricity of Poly (vinylidene Fluoride), Jap. J. Appl. Phys. 8, 975-976 (1969).

[5] Fukada, E.; Furukawa, T: Piezoelectricity and ferroelectricity in polyvinylidene fluoride, Ultrasonics 19 (1), 31–39 (1981).

DOI: 10.1016/0041-624x(81)90030-5

[6] Schewe, H., Piezoelectricity of Uniaxially Oriented Polyvinylidene Fluoride, 1982 Ultrasonics Symposium, 519-524 (1982).

DOI: 10.1109/ultsym.1982.197881

In order to see related information, you need to Login.