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All Journal Jurnal Simetris Jurnal Rekayasa Mesin IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Polimesin Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Aisyah, Nyayu
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Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Jurnal Polimesin

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An in-situ experimental and numerical evaluation on thermoelectric generators performance utilizing diesel engine exhaust heat Sugiyanto, Sugiyanto; Aisyah, Nyayu; Prayitno, Yosephus Ardean Kurnianto; Bahiuddin, Irfan
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7615

Abstract

Waste Heat Recovery (WHR) from heavy-duty diesel generators using Thermoelectric Generators (TEGs) offers a potential way to improve total system efficiency and reduce fuel consumption. This study combines experiments and numerical simulation to evaluate the performance of Hi-Z HZ 14 TEGs modules applied to a 6-cylinder, 60 kVA diesel generator. Experimentally, TEG modules were mounted equidistantly along the exhaust manifold, 40 cm from the engine, and tested at idle (750 rpm) with and without active air-side cooling. Hot- and cold-side temperatures, open-circuit Voltage (Voc), load power, and conversion efficiency were recorded. A matching TEG configuration was simulated under the same boundary conditions. As a result, active cooling increased the temperature differential and consistently improved power output and efficiency relative to natural convection. An efficiency of 2.1% was observed, in reasonable agreement with the simulation and consistent with typical TEGs performance under comparable operating conditions. Although this value confirms the feasibility of TEG integration in heavy-duty diesel exhaust systems, further improvements are possible through material selection, heat-sink optimization, and advanced cooling strategies.
Co-Authors Achmad Fikry Anwari, Muhammad Ariyadi, Hifni Mukhtar Bagaskara, Pagi Singgamata Bahari, Galuh Bahiuddin, Irfan Hakim, Sinta Uri El Ignatius Aris Hendaryanto Lety Trisnaliani Maulana, Arju Ridho Mutiara Putri, Mutiara Nugroho, Danuarta Adi Pratama, Bagus Ardyansyah Ilham Pratiwi, Ilham Ayu Putri Prayitno, Yosephus Ardean Kurnianto Prihadianto, Braam Delfian Radhian Krisnaputra Rosyid, Fakih Aulia Sena, Zhafran Huda SETYAWAN, PENDI Sugiyanto - Wibowo, Tegar Taufik Wicaksono, Dimas Aryo