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All Journal Jurnal Teknik Mesin Agrointek Rekayasa Mesin Jurnal Mechanical Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Machine : Jurnal Teknik Mesin Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Logic : Jurnal Rancang Bangun dan Teknologi Jurnal Riset Teknologi Industri Jurnal Pendidikan Teknik Mesin Undiksha Jurnal Surya Teknika Jurnal Sains dan Teknologi Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Karya Pengabdian Teknik Mesin Jurnal Pepadu AutoMech : Jurnal Teknik Mesin Jurnal Pendidikan Teknik Mesin Energy, Materials and Product Design
I Gede Bawa Susana
Universitas Mataram
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary

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PENERAPAN PENDEKATAN SHIP DALAM ANALISIS ERGONOMI MAKRO PADA KAJIAN PENGEMBANGAN ALAT PENGERING PASCAPANEN BAGI PETANI KECIL  I Gede Bawa Susana; Rudy Sutanto
Energy, Materials and Product Design Vol. 5 No. 1 (2026): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v5n1.338-345

Abstract

Postharvest drying equipment plays an important role in maintaining the quality of agricultural products produced by smallholder farmers. However, many currently used drying devices have not fully considered ergonomic aspects, particularly at the work system level. This study aims to analyse the design of postharvest drying equipment for smallholder farmers using a macro ergonomic approach grounded in the SHIP principles (systemic, holistic, interdisciplinary, and participatory). This approach is employed to examine the interrelationships among humans, tools, work processes, the environment, and the organizational and social aspects surrounding the system. The research method used in this study is a descriptive qualitative approach, employing a literature review and conceptual analysis of postharvest drying equipment design practices at the smallholder farming scale. The analysis results indicate that the SHIP approach enables the comprehensive identification of ergonomic issues, ranging from mismatches between equipment design and farmers’ working postures and habits to limitations in production systems, as well as the lack of user involvement in the design process. The integration of systemic, holistic, interdisciplinary, and participatory principles provides a macro-ergonomic framework that is relevant and applicable to supporting the design of postharvest drying equipment that is more contextual, sustainable, and aligned with the needs of smallholder farmers. In macro ergonomics, the SHIP approach serves as a methodological framework for comprehensively analysing and designing work systems by positioning humans at the centre of the system. This study is expected to serve as a conceptual reference for the development of agricultural equipment design based on macro-ergonomic principles.
Analisis Efektivitas Arang Sekam Padi sebagai Adsorben dalam Pemurnian Biogas dari Kotoran Sapi Sutanto, Rudy; Susana, I Gede Bawa
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11312

Abstract

Biogas is a renewable energy source produced through the anaerobic fermentation process of organic waste, especially cow dung, but its utilization is still limited due to the high content of impurity gases such as carbon dioxide (CO₂) and hydrogen sulfide (H₂S). This study aims to evaluate the performance of rice husk charcoal as an adsorbent material in the process of improving biogas quality and to analyze the effect of variations in adsorbent mass and contact time on increasing methane (CH₄) content. The research method is carried out through three main stages, namely biogas production using an anaerobic digester, adsorbent synthesis through carbonization and chemical activation processes, and purification testing using an adsorption column system. The variations in adsorbent mass used are 100 g, 200 g, and 300 g, with contact times of 5, 10, and 15 minutes, respectively. The results show that the increase in adsorbent mass and contact time is directly proportional to the efficiency of CO₂ absorption. The CH₄ content increased from 58.2% to 78.6%, while CO₂ decreased from 34.5% to 18.2% under optimum conditions. The CO₂ absorption efficiency reached a maximum value of 47.25%. This performance occurred at an adsorbent mass of 300 g and a contact time of 15 minutes, indicating that rice husk charcoal has porous characteristics that can effectively enhance the adsorption process.
Pemodelan Koefisien Perpindahan Panas Pada Sistem Pengeringan Berbasis Energi Sekam Padi Dengan Pendekatan Analogi Perpindahan Panas Dan Massa I Gede Bawa Susana; Rudy Sutanto
AutoMech : Jurnal Teknik Mesin Vol. 6 No. 01 (2026): Mei
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jtm.v6i01.13718

Abstract

Penelitian ini bertujuan untuk memodelkan koefisien perpindahan panas pada sistem pengeringan berbasis energi sekam padi menggunakan pendekatan analogi perpindahan panas dan massa (Chilton–Colburn). Analisis dilakukan pada kondisi temperatur udara masuk pengering sebesar 92,10°C dan temperatur lingkungan rata-rata 31°C, dengan pendekatan sifat termofisik udara pada temperatur rata-rata 60°C. Parameter yang digunakan meliputi densitas, kapasitas panas spesifik, viskositas kinematik, difusivitas massa, serta bilangan tak berdimensi seperti Reynolds, Prandtl, dan Schmidt. Hasil menunjukkan bahwa bilangan Reynolds sebesar 444 mengindikasikan bahwa aliran berada pada kondisi transisi menuju turbulen ringan yang mendukung konveksi paksa. Berdasarkan analogi perpindahan panas dan massa, diperoleh bilangan Sherwood sebesar 40,6, koefisien perpindahan massa sebesar 0,248 m/s, serta koefisien perpindahan panas sebesar 249 W/m²·K dengan laju perpindahan panas mencapai 15,2 kW. Pendekatan analogi Chilton–Colburn menunjukkan bahwa koefisien perpindahan panas berbanding lurus dengan bilangan Reynolds pangkat 0,6 serta dipengaruhi oleh sifat fluida dan karakteristik partikel. Hasil ini menegaskan bahwa perpindahan panas dan massa terjadi secara simultan dan saling berkaitan erat dalam proses pengeringan. Model yang dikembangkan mampu merepresentasikan kondisi nyata sistem dan berada dalam rentang nilai literatur, sehingga dapat digunakan sebagai metode sederhana dan efektif dalam memprediksi performa sistem pengering berbasis biomassa.
Pengaruh Variasi Suhu pada Rotary Dryer terhadap Karakteristik Pengeringan Biji Kopi Rudy Sutanto; I Gede Bawa Susana
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 2 (2026): April 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i2.7934

Abstract

The use of a rotary dryer in the coffee bean drying process offers advantages in heating homogeneity and increased contact between the material and the drying medium. This study aims to analyze the effect of variations in the rotary dryer operating temperature on the drying characteristics of coffee beans in terms of changes in mass, moisture content, and drying rate. Experimental testing was conducted using four temperature levels, namely 40 °C, 50 °C, 60 °C, and 70 °C. The drying process lasted for 360 minutes with data collection intervals every 30 minutes to monitor the dynamics of moisture content reduction as a function of time. The results showed that increasing the rotary dryer operating temperature significantly accelerated the process of reducing the mass and moisture content of coffee beans. At a temperature of 70 °C, the rate of moisture reduction occurred the fastest compared to other temperature variations, while at a temperature of 40 °C the process was slower and tended to be stable. The drying rate showed a maximum value in the initial stage of drying, then decreased gradually as the moisture content in the material decreased. This phenomenon indicates a transition in the mass transfer mechanism from the dominance of free water evaporation to a slower internal moisture diffusion. Overall, temperature variations in rotary dryers significantly impact the drying dynamics of coffee beans. Determining the correct operating temperature is crucial for achieving optimal process efficiency while minimizing potential changes in material quality during drying.
Evaluation of renewable energy from rice husk waste potential in Bali Island I Gede Bawa Susana; I Gede Santosa
JURNAL MECHANICAL Vol 17 No 1 (2026): JURNAL MECHANICAL
Publisher : Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study evaluates the potential of rice husk waste as a renewable energy source in Bali Island. Based on rice husk production data of 127,095 tons per year and an average calorific value of 14 MJ/kg, the estimated energy potential reaches 494,258,728.74 kWh per year. This amount is sufficient to meet the electricity needs of approximately 41,188 households, assuming an average consumption of 100 kWh per month. The evaluation results indicate that rice husks have strategic value as a local biomass resource that can be utilized through various technologies, such as direct combustion, gasification, and biomass briquetting. In addition to reducing dependence on fossil fuels, this utilization supports sustainable agricultural waste management. Therefore, an integrated approach involving policy support, appropriate technology, and community engagement is essential to effectively and sustainably implement energy utilization from rice husk waste in Bali and other agricultural regions in Indonesia.
Penerapan Kelengkapan Keselamatan dan Kesehatan Kerja (K3) Pada UMKM Konstruksi Logam Anak Agung Alit Triadi; Nur Kaliwantoro; I Gede Bawa Susana; Maharsa Pradityatama; Akbar Tawaqqal; Lalu Marvin Apriyadi; Muhammad Alkaff
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 1 (2026): April, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v8i1.239

Abstract

Occupational Safety and Health (OSH) implementation in small and medium metal construction enterprises is often neglected, particularly regarding non-ergonomic working postures and the low use of personal protective equipment (PPE). These conditions increase the risk of work-related fatigue, occupational diseases, and workplace accidents. This community service program aimed to improve workers’ knowledge and behavior toward healthy work concepts and PPE utilization in a metal construction MSME through counseling and hands-on demonstrations. The activity was carried out in one day at the partner’s workshop, involving all workers and the business owner. The program adopted a counseling and implementation-oriented training design, using a five-item pre-test and post-test questionnaire on healthy work concepts, OSH, and PPE use. The results indicate a substantial improvement in OSH knowledge and behavior. The average percentage of “yes” responses increased from approximately 16% at pre-test to about 92% at post-test; PPE use rose from 40% to 100%, and workers who reported always using PPE increased from 20% to 80%. The partner also began to understand and apply basic ergonomic principles in working posture and workstation arrangement. It can be concluded that the dissemination and demonstration of healthy work concepts and PPE use effectively enhanced OSH awareness and behavior among workers in the metal construction MSME, thus supporting business continuity through a safer, more comfortable, and more productive work environment.
Pengenalan dan Edukasi Postur Kerja Ergonomis pada Aktivitas Menggunakan Gerinda Tangan di Bengkel Mobil Listrik Jurusan Teknik Mesin Universitas Mataram I Gede Bawa Susana; I Gusti Agung Ketut Chatur Adhi Wirya Aryadi; I Wayan Joniarta; I Made Mara; I Ketut Perdana Putra
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 1 (2026): April, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v8i1.241

Abstract

Kegiatan pengabdian kepada masyarakat ini dilaksanakan di Bengkel Mobil Listrik Jurusan Teknik Mesin Universitas Mataram dengan tujuan meningkatkan pemahaman dan keterampilan mahasiswa atau operator dalam menerapkan postur kerja ergonomis pada aktivitas penggunaan gerinda tangan. Permasalahan utama yang ditemukan adalah penggunaan postur jongkok atau setengah jongkok saat menggerinda akibat rendahnya posisi benda kerja, yang berpotensi meningkatkan risiko gangguan muskuloskeletal. Metode pelaksanaan kegiatan menggunakan pendekatan edukatif dan partisipatif yang meliputi tahap observasi awal, penyuluhan ergonomi, demonstrasi teknik postur kerja, serta pelatihan praktis. Hasil observasi awal menunjukkan bahwa postur jongkok ditandai dengan fleksi batang tubuh dan leher yang besar serta beban statis pada lutut dan pergelangan kaki. Setelah dilakukan edukasi dan penyesuaian fasilitas kerja sederhana, seperti pengaturan ketinggian benda kerja, peserta mampu beralih ke postur berdiri yang lebih alamiah dan ergonomis. Kegiatan ini menunjukkan bahwa intervensi ergonomi sederhana melalui edukasi dan pelatihan praktis efektif dalam meningkatkan kesadaran, kenyamanan, dan keselamatan kerja pada aktivitas menggerinda di lingkungan bengkel pendidikan.
Pendampingan Penerapan Ergonomi melalui Pemindahan Toolbox dari Lantai ke Rak Kerja di Bengkel Mobil Listrik Teknik Mesin Universitas Mataram I Gede Bawa Susana; I Made Mara; I G.A.K. Chatur Adhi Wirya Aryadi; Rudy Sutanto; I Wayan Joniarta; I Ketut Perdana Putra
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 2 (2026): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v8i2.262

Abstract

Aktivitas pemindahan toolbox secara manual merupakan salah satu pekerjaan yang berpotensi menimbulkan risiko gangguan muskuloskeletal apabila dilakukan dengan teknik pengangkatan yang tidak ergonomis. Di Bengkel Mobil Listrik Teknik Mesin Universitas Mataram, toolbox yang sebelumnya berada di lantai dipindahkan ke rak kerja sebagai bagian dari penataan fasilitas laboratorium. Kegiatan pengabdian kepada masyarakat ini bertujuan memberikan pendampingan kepada mahasiswa dalam menerapkan teknik pemindahan beban yang aman dan ergonomis selama proses pengangkatan toolbox. Metode pelaksanaan meliputi identifikasi risiko kerja, sosialisasi prinsip manual material handling, demonstrasi teknik pengangkatan yang benar, pembagian tugas pengangkatan secara berkelompok, serta pendampingan selama proses pemindahan toolbox ke rak kerja. Teknik yang diterapkan meliputi menjaga posisi punggung tetap netral, menekuk lutut saat mengangkat, memegang beban secara seimbang, mengangkat menggunakan kekuatan otot tungkai, serta melakukan koordinasi gerakan antaranggota tim selama proses pengangkatan dan penempatan toolbox pada rak. Hasil kegiatan menunjukkan bahwa penerapan teknik pengangkatan ergonomis mampu memperbaiki postur kerja mahasiswa, meningkatkan koordinasi selama proses pemindahan, serta mengurangi potensi cedera akibat pengangkatan manual. Selain itu, toolbox berhasil dipindahkan ke rak kerja dengan aman sehingga memudahkan akses terhadap peralatan dan mendukung penataan bengkel yang lebih ergonomis. Kegiatan ini menunjukkan bahwa edukasi mengenai teknik manual material handling merupakan langkah sederhana namun efektif dalam meningkatkan keselamatan dan budaya kerja ergonomis di lingkungan laboratorium.
Co-Authors A. Mulyanto Achmad Zainuri Adhi W.A., I G.A.K. Chatur Adhi, I G.A.K.C. Adhi, I.G.A.K.C. Agus Dwi Catur Akbar Tawaqqal Alit Triadi, Anak Agung Anak Agung Alit Triadi Aryadi, I G.A.K. Chatur Adhi Wirya CATUR ADHI , I GUSTI AGUNG KETUT Chatur Adi W.A., I G.A.K. Chatur Adi.W.A, I.G.A.K Emmy dyah S Gilang Ade Putra I G.A.K Chatur Adhi W.A. I G.A.K. Chatur Adhi Wirya Aryadi I G.A.K. Chatur Adi W.A. I G.A.K. Chatur Adi W.A. I G.A.K.C. Adhi I G.A.K.C. Adhi I Gede Santosa I Gusti Agung Ketut Chatur Adhi Wirya Aryadi I Ketut Perdana Putra I Ketut Perdana Putra I Ketut Perdana Putra I Ketut Wiryajati I Made Adi Sayoga I Made Mara I Made Suartika I Made Suartika I Wayan Joniarta I. B. Alit I. B. Alit I. M. Mara I.B Alit I.B. Alit, I.B. I.D.K. Okariawan I.M Mara I.M. Mara I.M. Nuarsa Ida Ayu Sri Adnyani Ida Bagus Alit Ida Bagus Alit Kawirian, Wisnu Lalu Marvin Apriyadi M. Mirmanto, M. Made Wijana Made Wijana Made Wijana, Made Made Wirawan Made Wirawan Made Wirawan Made Wirawan, Made Maharsa Pradityatama Mara, I.M. Mas'ud Mas'ud Muhammad Alkaff N. Nurpatria, N. Nuarsa, I.M. Nur Kaliwantoro Okariawan, I Dewa Ketut Padang, Y.A. Perdana Putra, I Ketut Putra, I Ketut Perdana R. Sutanto Rudy Sutanto S. Sujita Sapri, S. Sinarep Sinarep Suartika , I Made Sugiman . Sujita Darmo Sujita Sujita Sujita Sujita Sujita, Sujita Sultan Sultan Wirya Aryadi, I Gusti Agung Ketut Chatur Adhi Yesung Allo Padang