Harvesting Energy from Planetary Gear Using Piezoelectric Material

Haider Jaafar Chilabi, Hanim Salleh, Eris E. Supeni, Azizan As’arry, Khairil Anas Md Rezali and Ahmed B. Atrah
Additional contact information
Haider Jaafar Chilabi: Department of Mechanical and Manufacturing, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
Hanim Salleh: Institute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor 43000, Malaysia
Eris E. Supeni: Department of Mechanical and Manufacturing, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
Azizan As’arry: Department of Mechanical and Manufacturing, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
Khairil Anas Md Rezali: Department of Mechanical and Manufacturing, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
Ahmed B. Atrah: Directorate General of Electrical Transmission Projects (ETP), Ministry of Electricity, Baghdad 10001, Iraq

Energies, 2020, vol. 13, issue 1, 1-25

Abstract: In the present study, a rotational piezoelectric (PZT) energy harvester has been designed, fabricated and tested. The design can enhance output power by frequency up-conversion and provide the desired output power range from a fixed input rotational speed by increasing the interchangeable planet cover numbers which is the novelty of this work. The prototype ability to harvest energy has been evaluated with four experiments, which determine the effect of rotational speed, interchangeable planet cover numbers, the distance between PZTs, and PZTs numbers. Increasing rotational speed shows that it can increase output power. However, increasing planet cover numbers can increase the output power without the need to increase speed or any excitation element. With the usage of one, two, and four planet cover numbers, the prototype is able to harvest output power of 0.414 mW, 0.672 mW, and 1.566 mW, respectively, at 50 kΩ with 1500 rpm, and 6.25 Hz bending frequency of the PZT. Moreover, when three cantilevers are used with 35 kΩ loads, the output power is 6.007 mW, and the power density of piezoelectric material is 9.59 mW/cm 3 . It was concluded that the model could work for frequency up-conversion and provide the desired output power range from a fixed input rotational speed and may result in a longer lifetime of the PZT.

Keywords: piezoelectric; planetary gear; rotational energy harvesting; interchangable planet cover; energy harvester excitation elements (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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