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Increasing the Effectiveness of Electricity-Generating Floors Through the Mechanical Energy of DC Generators Rochman, Sagita; Aini, Rasyida Shabihah Zukro; Billah, Mussafa
Journal of Electrical Engineering and Computer (JEECOM) Vol 5, No 2 (2023)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v5i2.6937

Abstract

The increasing electricity consumption of the Indonesian population requires renewable energy as an alternative to electricity generation supplies. Renewable energy can be formed through mechanical energy in its simplest form, namely in the form of a footrest. Generally, energy-harvesting floors that utilise human footsteps are designed with piezoelectric sensors. This sensor is responsible for converting mechanical energy into electrical energy. However, the power generated from piezoelectrics is only around 0.041 μW to 240.59 μW. So, in this study, an alternative design for a footstep floor is proposed capable of harvesting electrical energy using a DC generator. The proposed platform consists of a platform design that utilises the translational motion of the gears on the gear rack and is assisted by four springs surrounding the sides of the iron plate. Apart from that, the platform has a power management and storage system. Unlike controllers in general, solar charger controllers are used for charging (voltage and current in the accumulator) and flowing current to the load (lights). The subjects used in this floor test ranged from 20-100 kg. Compared to floors that use piezoelectrics, the results are that floors with DC generators experience an increase in power of around 0.62%. Hence, DC generators are more effective in harvesting electrical energy.
Design and Development of a Footstep Energy Harvesting Floor using a DC Generator Billah, Mussafa; Rochman, Sagita
BEST Vol 8 No 1 (2026): BEST
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/pwtn0y63

Abstract

Indonesia’s demand for electrical energy continues to increase, creating a need for small-scale alternative energy sources. One potential source is mechanical energy from human footsteps, which is normally dissipated as waste energy. This study presents the design and development of a floor-based electricity generator that converts footstep energy into electrical energy using a DC generator. The research employed an experimental method consisting of product design, component selection, fabrication, testing, and data analysis. A mechanical transmission consisting of a floor mechanism, gear, shaft, and spring transfers mechanical energy from a footstep to the DC generator. The generated electrical energy is stored in a lithium-ion battery through a solar charge controller and is subsequently used to power an LED lamp. Experimental results showed an average output voltage of 3.33 V and an average current of 11.31 mA. The measured average energy was 0.045 J, with an average footstep duration of 1.14 s. The highest measured voltage and current were 4.8 V and 12.5 mA, respectively, while the highest recorded energy was 0.072 J. The results indicate that the proposed system can be used as a small-scale renewable energy harvesting device, particularly in locations with high pedestrian traffic.