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All Journal TERANG : Jurnal Pengabdian Pada Masyarakat Menerangi Negeri Journal Zetroem
Septiannissa Azzahra
Institut Teknologi PLN
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Prototype Pembelajaran Pemanfaatan Energi Baru Terbarukan Berbasis Energi Surya Samsurizal Samsurizal; Septiannissa Azzahra; chistiono Christiono; Miftahul Fikri; Hastuti Azis; Agus Yogianto
Terang Vol 4 No 1 (2021): TERANG : Jurnal Pengabdian Pada Masyarakat Menerangi Negeri
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/terang.v4i1.1278

Abstract

The use of renewable energy (EBT) is increasing to achieve the target of 23% by 2025. There needs to be a variety of preparations in welcoming the transition of fossil-based energy to renewable energy. One of them is by improving the quality of human resources that excel in developing the use of renewable energy in Indonesia. Through the Electrical Engineering PkM Team IT-PLN had the opportunity to provide counseling or education to the academic community of MA Al-Khairiyah Rancaranji. The activity is in the form of learning the installation of solar power plant components and the utilization of solar energy in the form of prototype portable plts. The learning improved students' understanding of renewable energy and was able to assemble photovoltaic system components into prototype portable plts with a capacity of 100 WP. Then the tool is tested using a lamp load of 9 watts to find out the amount of current and voltage produced. From this activity, it can be known that the students of MA Al-Khairiyah Rancaranji are very enthusiastic in knowing about renewable energy and can apply it in the surrounding environment.
Chemical Composition Analysis and Heat Absorption Potential of Andesite Stone as Absorber Material in Thermoelectric Generators Septiannissa Azzahra; Samsurizal; Aryana Rachmad Sulistya; Azli bin Yahya
ZETROEM Vol 8 No 2 (2026): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v8i2.7998

Abstract

The performance of thermoelectric generators is strongly influenced by heat absorption and thermal management on the hot side because these factors determine the temperature gradient and electrical energy output produced. Conventional ceramic materials commonly used as thermal media generally have high production costs and limited heat absorption capacity creating the need for alternative materials that are natural economical and sustainable. This study investigates andesite stone as a potential natural heat-absorbing material for thermoelectric generators through chemical composition analysis using the X-ray fluorescence method. The results show that the andesite sample is dominated by silica and alumina forming a stable aluminosilicate structure. Other identified compounds include iron oxide calcium oxide and magnesium oxide. Iron oxide contributes to increased radiation heat absorption through higher emissivity while calcium oxide and magnesium oxide improve crystal lattice stability and resistance to thermal shock. The very low loss on ignition value of 0.02% indicates minimal volatile compounds suggesting excellent thermal and chemical stability at high temperatures. Based on the relationship between composition and material properties the studied andesite stone is estimated to have moderate thermal conductivity and effective thermal buffering capability which are beneficial for maintaining a stable temperature gradient in thermoelectric generator systems. Overall these findings indicate that andesite stone has strong potential as a natural heat-absorbing or coating material in thermoelectric generator applications and can become a more economical and environmentally friendly alternative to conventional synthetic ceramic materials for future sustainable energy systems and broader industrial thermal applications worldwide.
Co-Authors Agus Yogianto Aryana Rachmad Sulistya Azli bin Yahya CHRISTIONO CHRISTIONO Fikri, Miftahul Hastuti Azis Samsurizal Samsurizal