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Tirta, Bram
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Analysis of Mechanical and Electrical Load Variations on Energy Output Performance of a Piezoelectric Floor Prototype Tirta, Bram; Gerhana; Zanu Saputra; Peprizal
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 20 No. 2 (2026)
Publisher : Faculty of Engineering, Universitas Brawijaya

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Abstract

This study aimed to investigate the influence of mechanical and electrical load variations on the output characteristics of a piezoelectric floor prototype designed for small-scale energy harvesting applications. The prototype consisted of 128 lead zirconate titanate (PZT)-based piezoelectric elements connected in a parallel configuration to enhance the total current output. Experimental tests were conducted using two user mass variations, 69 kg and 98 kg, to represent differences in the applied mechanical pressure on the floor surface. Two types of electrical loads were examined: a simple 1 ? resistive load and a charging circuit comprising a bridge rectifier, a boost converter, and a TP4056 module for charging a 3.7 V nominal Li-ion battery. The results indicated that an increase in mechanical load led to a higher output current, with average values of 3.67 mA and 11.67 mA for 69 kg and 98 kg tests under resistive load conditions, respectively. In contrast, the average current decreased to 1.06 mA and 4.12 mA when the charging circuit was applied, due to conversion and regulation losses. Overall, the system demonstrated functional capability in generating electrical energy and charging low-power storage devices, highlighting its potential as an alternative piezoelectric-based renewable energy source.
IMPACT OF LOAD DISTRIBUTION ON ENERGY GENERATION IN A PIEZOELECTRIC FLOOR PROTOTYPE Tirta, Bram
Journal of Renewable Energy and Mechanics Vol. 8 No. 02 (2025): REM VOL 8 No 02 2025
Publisher : UIR PRESS

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Abstract

The increasing global demand for energy has intensified the search for sustainable and environmentally friendly alternatives, one of which involves harvesting mechanical energy from human activities using piezoelectric materials. This study designed and evaluated a piezoelectric floor prototype consisting of 128 parallel-connected PZT elements supported by spring columns as force transmission media, employing a Research and Development (R&D) approach. Experimental tests were conducted under two loading patterns (walking across and jumping) with mass variations of 69kg and 98kg, each repeated ten times. The output signals were recorded using an oscilloscope in a closed-circuit configuration with a 1 Ω resistor as the load. Results indicate that the jumping pattern produced higher voltage and current compared to walking, while increased body mass significantly enhanced system performance. Overall, the generated voltage ranged from 1.5 to 8.9V with an average current up to 11.7mA, where jumping with the heavier mass yielded the highest output. These findings confirm that both mass variation and loading pattern directly affect energy performance and highlight the potential of piezoelectric technology to contribute to sustainable energy development. Further studies are required to improve signal stability and to integrate the system with energy storage devices, thereby supporting practical large-scale applications.
Co-Authors Gerhana Peprizal Zanu Saputra