Fathahillah, Dyah Darma Andayani, Akhyar Muchtar, Hardianto, Abdul Hafid Hasim
This developmental research focuses on the creation and efficacy evaluation of a prototype for a household electricity generator utilizing heat energy. Employing a research and development (R and D) methodology, the study follows a prototype development model structured into four main stages: needs analysis, prototype construction, installation and testing and evaluation. The core of the study is to determine the system functionality, achieving a functionality score of F = 1. The prototype's primary components include solar cells and a thermoelectric generator (TEG) module. The TEG was tested using four different heat sources for 1 hr, yielding an average electrical output of 0.172 W at an efficiency of 4.25%. Solar cell testing was conducted under sunlight for 6 hr, producing an average output of 1.3 W at an efficiency of 25%. Combined testing of the TEG and solar cells over 4 hr resulted in an average output of 1.4 W at the same efficiency rate. Battery charging and discharging tests were conducted, with the charging process using TEG and solar panels lasting 37.4 hr and discharging taking 1.8 hr. The study recommends utilizing a TEG of type HZ-14 and solar cells of type 100 WP, accompanied by a specialized solar panel accumulator, for optimal performance. These modifications are suggested to enhance the electrical output and efficiency while minimizing battery charging time. This research contributes to the growing field of sustainable energy solutions by demonstrating the practical applications and effectiveness of combining thermoelectric and solar technologies in small-scale energy generation. © 2025 - Kalpana Corporation.
Universitas Negeri Makassar, Department of Electrical Engineering, Makassar, South Sulawesi, 90224, Indonesia; Sekolah Tinggi Teknologi (STITEK) Bontang, Department of Electrical Engineering, Bontang, East Kalimantan, 75321, Indonesia; Universitas Negeri Makassar, Department of Civil Engineering and Planning Education, Makassar, South Sulawesi, 90224, Indonesia
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