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All Journal Sinergi Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Ilmiah Teknik Mesin "MEKANIK" Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat
Supriatno, Supriatno
Universitas Medan Area
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Pengujian Kinerja Cooling Water untuk Mesin Stirling tipe Gamma Skala Kecil Indra Prasetio; Jufrizal Jufrizal; Supriatno Supriatno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i3.146

Abstract

This study aims to evaluate and analyze the performance of cooling water in a small-scale Gamma-type Stirling engine. The research method employed was an experimental approach. The test results show that the inlet water temperature was 27.6 °C, while the average outlet water temperature reached 92.33 °C after 60 minutes of testing. Cooling water with an inlet temperature of 27.6 °C reduced the average heat source temperature from 484.51 °C to 64.78 °C on the compression chamber side. At an airflow rate of 0.006 m³/s, the average cooling effectiveness was recorded at 13%, with the highest value of 19.1% observed at the 55th minute of testing. This study concludes that cooling water effectively reduces the heat source temperature and improves thermal efficiency in a small-scale Gamma-type Stirling engine.
Analisis Efisiensi Termal Kompor Biomassa Tipe Gasifier Downdraft dengan Variasi Massa Campuran Arang Kayu dan Wood Pellet Joel Hasoloan Simatupang; Jufrizal Jufrizal; Supriatno Supriatno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.201

Abstract

This study analyzes the thermal efficiency of a downdraft gasifier-type biomass stove using various fuel masses of wood charcoal and wood pellets. The Water Boiling Test (WBT) method was applied with fuel masses of 0.5 kg, 0.75 kg, 1 kg, and 1.5 kg. Observed parameters included thermal efficiency, fuel consumption rate (FCR), power input, and power output. The highest thermal efficiency, 14%, was achieved with 1.5 kg of wood pellets, while charcoal showed a decrease in efficiency at 1 kg. FCR increased with charcoal but decreased with wood pellets, indicating better combustion efficiency. Power input and output increased with higher fuel mass. These findings highlight the importance of fuel type and mass optimization in improving biomass stove performance, thereby supporting Indonesia's transition to renewable energy.
Penerapan Teknologi Biodigester untuk Konversi Limbah Organik Menjadi Biogas di Desa Sukamandi Supriatno Supriatno
Jurnal Pengabdian Kepada Masyarakat Vol. 2 No. 5 (2026): Jurnal Pengabdian Kepada Masyarakat
Publisher : CV. Era Digital Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59066/jpkm.v2i5.2835

Abstract

Kegiatan ini bertujuan menerapkan teknologi biodigester untuk mengolah kotoran sapi dan sampah sayuran menjadi biogas di Desa Sukamandi. Permasalahan yang dihadapi adalah rendahnya pemanfaatan limbah organik sebagai energi dan terbatasnya pengetahuan masyarakat. Metode pelaksanaan meliputi pembuatan biodigester tipe batch kapasitas 200 liter, pencampuran substrat (70% kotoran sapi dan 30% sampah sayuran), fermentasi anaerob selama 30 hari, dan demonstrasi pemanfaatan biogas. Hasil menunjukkan bahwa biogas yang dihasilkan dapat dibakar dan digunakan untuk memanaskan air selama 23,17 menit, serta residu fermentasi berpotensi sebagai pupuk kompos. Masyarakat terlibat aktif dalam setiap tahapan dan menunjukkan peningkatan pengetahuan serta keterampilan. Kegiatan ini membuktikan bahwa teknologi biodigester dapat menjadi solusi pengelolaan limbah organik sekaligus penyedia energi alternatif yang ramah lingkungan.
Manufaktur dan Pengujian Burner LPG untuk Pemanasan Heater Mesin Stirling mCHPSE-012021 Muhammad Arif Hidayat; Fatur Fadhillah Al Ridho; Jufrizal Jufrizal; Supriatno Supriatno; Nurdiana Nurdiana
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.82

Abstract

This research focuses on developing a special LPG burner for the mCHPSE-012021 Stirling engine. The burner design was developed using CAD software and fabricated using machine tools and a welding process. Tests are carried out to verify how much the burner performance meets the desired specifications. The test results show that although the burner can reach the required high temperature, the thermal efficiency is still low, at 19.72%. This figure is far below the efficiency standard for household gas stoves, according to SNI 8660:2018. These findings highlight the urgency of improving burner design and efficiency to meet established standards, improving the mCHPSE-012021 Stirling engine's overall performance, and significantly increasing energy efficiency. These improvements are necessary to ensure optimal performance and efficiency in energy use in mCHPSE systems, underscoring the importance of developing more efficient and standards-compliant burner technology to support the use of Stirling engines in microenergy applications.
Co-Authors Achmad Jusuf Zulfikar Barita Barita Darianto, Darianto Darwin, Felix Eswanto Eswanto Eswanto, Eswanto Fatur Fadhillah Al Ridho Ida Royani Ifan Aulia Candra Ilmi Abdullah Indra Hermawan INDRA HERMAWAN Indra Prasetio Iswandi Iswandi Joel Hasoloan Simatupang Jufrizal Jufrizal Kurnia Rizky Nasution Muhammad Arif Hidayat Muhammad Idris Nurdiana Nurdiana Nurdiana Rahmadsyah Lubis Rizki Muliono Samsul A Rahman Sidik Hasibuan Tamba, Octo Goldwin Tino Hermanto Uun Novalia Harahap Yoko Nikodemus Manik Yopan Rahmad Aldori zainuddin zainuddin