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All Journal JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Jurnal Rekayasa Material, Manufaktur & Energi Journal of Applied Engineering and Technological Science (JAETS) Community Development Journal: Jurnal Pengabdian Masyarakat Ihsan: Jurnal Pengabdian Masyarakat Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Sinergi Polmed : Jurnal Ilmiah Teknik Mesin IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat
Tino Hermanto
Universitas Medan Area
Religion Aerospace Engineering Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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Pendampingan Layout Ulang Area Produksi dan Identifikasi Kebutuhan Teknologi pada UMKM Roti Pakcik untuk Efisiensi Alur Kerja Hermanto, Tino; Iswandi, Iswandi; Darianto, Darianto; Umroh, Bobby; Haniza, Haniza; Yolanda, Aginta
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i3.372

Abstract

This Community Service activity was carried out at the Roti Pakcik Tanjung Morawa MSME through work process observations, discussions with the owner and workers, and recording the condition of the production facility. The activity focused on two fundamental needs of the MSME: improving the layout of the work area to enhance production efficiency and identifying the need for relevant production technology. The observation results showed a crowded work area, unclear functional zoning, and the movement of materials and products across the same area. These conditions increased waiting times, increased the risk of cross-contamination, and complicated quality control. In addition, the production process still relied on manual practices and limited tools, so there was a need for technology in the form of a flour sifting machine to maintain ingredient consistency, a mixer to maintain dough homogeneity according to production capacity, and a bread cutting machine to speed up the process, improve size uniformity, and reduce work fatigue. The activity resulted in a workflow problem map, an initial zoning design, and a list of technology priorities as a basis for further mentoring. These findings position the program as the initial stage of a realistic and field-based MSME production transformation.
Analisis Pengaruh Penggunaan LPG sebagai Bahan Bakar Alternatif terhadap Performansi dan Efisiensi Mesin Bensin Dinata, Irvan Hendrawan Surya; Jufrizal, Jufrizal; Darianto, Darianto; Hermanto, Tino; Umroh, Bobby; Nurdiana, Nurdiana
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.260

Abstract

This study investigates the effect of using Liquefied Petroleum Gas (LPG) as an alternative fuel to Pertalite on the performance, energy efficiency, and operating cost of a 6.5 HP gasoline engine-driven water pump. Experiments were conducted at three engine operating conditions: minimum, average, and maximum engine speeds. The evaluated parameters included engine speed, water discharge, hydraulic power, shaft power, brake specific fuel consumption (BSFC), thermal efficiency, overall system efficiency, and fuel operating costs. The results indicate that the pump's hydraulic performance, as measured by water discharge and hydraulic power, is not significantly affected by the type of fuel used. However, engines that use Pertalite tend to have slightly better thermal and system efficiencies than LPG engines. From an economic perspective, LPG offers a substantial advantage, with lower operating and energy costs per unit of power. Therefore, despite Pertalite's slightly superior technical efficiency, LPG is a more economical alternative fuel for long-duration water pump applications.
Intensifikasi Produksi Biodiesel dari Minyak Goreng Limbah melalui Teknologi Ultrasonik dengan Optimalisasi Response Surface Methodology Idris, Muhammad; Jufrizal, Jufrizal; Harahap, Uun Novalia; Aldori, Yopan Rahmad; Hermanto, Tino
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.301

Abstract

This study aims to optimize biodiesel production from waste cooking oil using ultrasonic technology combined with Response Surface Methodology (RSM). The investigated variables include the methanol-to-oil molar ratio (6–12), alkaline catalyst concentration (1–3 wt%), and ultrasonic reaction time (480–1440 s). Based on 17 experimental runs, a two-factor interaction (2FI) linear regression model was developed. ANOVA results indicate that all variables significantly affect biodiesel yield (p < 0.05), with catalyst concentration as the most influential factor. The model demonstrates high predictive accuracy (R² = 0.937; adjusted R² = 0.900; MAE = 2.24%; RMSE = 2.84%). Optimization results indicate optimal conditions at a methanol-to-oil ratio of 10.96, a catalyst concentration of 1.03 wt%, and a reaction time of 1414.79 s, yielding 96.84% FAME. Ultrasonic technology effectively enhances mixing and accelerates reactions via cavitation. This study provides practical operational guidance to improve the efficiency of sustainable biodiesel production and support carbon emission reduction.
Co-Authors Abd Rahman Bin Dullah Achmad Jusuf Zulfikar Aditya Surya Dinata Adly Zulqarnain bin Mohamad Akhiruddin Akhiruddin Aldhori, Yopan Rahmad Ardaha, Mhd. Taufik Ariyudha, Andhika Arya Rudi Nasution Bobby Umroh Butarbutar, Elky Gunawan Darianto Darianto Darianto, Darianto Darwin, Felix Dimas Prasetyo Dinata, Irvan Hendrawan Surya Dwy, Shera Fadhillah, Yusuf Fadly Tamimi Fahrul Sinurat, Ryan Faruqi, Muhammad Dava Fathon'D, Ar Rasyid Fauzi, Alfian Fauzi, Rizky Ginting, Dicka Prasetya Girsang, Evan Roland Habib Satria Hadi Sutanto Haniza Harahap, Uun Novalia Hasibuan, Samsul A Rahman Sidik HENRY ISKANDAR Hermansyah Hermasnyah Ida Royani Indra Hermawan INDRA HERMAWAN Iqbal, Mhd. Iswandi Iswandi Iswandi Iswandi Jubaidah Jubaidah Jufrizal Jufrizal Jufrizal Jufrizal Marojahan Hutasoit, Alex Marwan Marwan Muhammad Husein Muhammad Idris Muhammad Idris Muhammad Khahfi Zuhanda Muhammad Rayhan Nurfajrie Nasution, Heri Prinando Nurdiana Nurdiana Prayoga, M. Angga Purba, Jon Lihardo Purba, Tiochanra Rahmad Syah, Rahmad Rahmatullah . Rahmatullah Rahmatullah Ramadhan, Alfian Rizki Muliono Rokhim, Mochamad Iqbal Ruztamreen Bin Jenal Samsul A Rahman Sidik Hasibuan Samsura, DT Alvin Tamimi Ramadhan Selamat Riadi Sembiring, Perdy Simangunsong, Helfran Sinaga, Andriansyah Sipahutar, David Adrianus Sitinjak, Sapriadi Suprapto Suprapto Supriatno Supriatno, Supriatno Susilawati, Susilawati Syahputra, Dwi Fawzi Tampubolon, Deo G Tarigan, Kristianto Wahyu Pratama Yolanda, Aginta Yopan Rahmad Aldori Zarmawan, Husri Zulfani, M