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All Journal JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Jurnal Teknovasi : Jurnal Teknik dan Inovasi Mesin Otomotif, Komputer, Industri dan Elektronika Martabe : Jurnal Pengabdian Kepada Masyarakat Infotekmesin Journal of Applied Engineering and Technological Science (JAETS) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Mejuajua IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat
Yopan Rahmad Aldori
Universitas Medan Area
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT 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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Analysis of Bending Strength of Composite Materials in Bipolar Plates for Fuel Cell Technology Zarmawan, Husri; Iswandi, Iswandi; Hermanto, Tino; Darianto, Darianto; Hermawan, Indra; Idris, Muhammad; Jufrizal, Jufrizal; Rahmad Aldori, Yopan
JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Vol. 8 No. 2 (2025): Journal of Electrical and System Control Engineering
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jesce.v8i2.14227

Abstract

This study aims to this study was to examine the effect of polypropylene (PP) plastic and activated carbon (AC) composition in a plastic composite material. The composite material was mixed using an internal mixer at a processing temperature of 220°C and a speed of 50 rpm. The mixture was then molded with dimensions of 100 mm in length, 15 mm in width, and 2,5 mm in thickness. The sample molding was performed using a compression molding method with a pressure of 1500 MPa at 250°C and a holding time of 300 minutes. Subsequently, the samples were cut according to the bending test dimensions following ASTM D790-03 standards, with dimensions of 100 mm x 12.7 mm x 2.5 mm. The test results for the polypropylene-activated carbon composite in the first composition showed a maximum stress point of 36.95 MPa and an elastic modulus of 4.3096 MPa, while the second composition showed a maximum stress point of 34.58 MPa and an elastic modulus of 3.371 MPa. These findings indicate that increasing the activated carbon composition in polypropylene polymer results in a reduction in bending strength.
Manufacture of a Horizontal Double-Screw Mixer for Fermented Feed Production with a 100 kg Batch Capacity Ariyudha, Andhika; Darianto, Darianto; Hermanto, Tino; Rahmad Aldori, Yopan; Iswandi, Iswandi; Hermawan, Indra; Idris, Muhammad; Jufrizal, Jufrizal
JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING Vol. 8 No. 2 (2025): Journal of Electrical and System Control Engineering
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jesce.v8i2.14228

Abstract

In general, every livestock needs feed in the form of a mixture of livestock feed. The livestock feed fermentation process is currently phenomenal because it provides benefits that are felt by farmers. Maybe many people know the fermentation as a process of making supplement drinks only. It turns out not, the fermentation process can be used as an alternative to making high-quality livestock feed. In addition to being very simple to make, making feed by fermentation also saves time and money, because farmers are no longer busy with herding or grazing. This horizontal mixer machine has a capacity of 100 kg / Batch. In making this machine includes manufacturing processes such as: welding, grinding, drilling, bending, cutting torch or gas cutting, and non-permanent joints, namely nut and bolt joints. The components of the machine are: frame, tube, double screw, axle shaft, bossing, gear box, housing bearing, block bearing, pulley, v-belt, and electric motor. And then assembled and put together into a machine. From the above explanation, the following conclusions can be drawn: 1. Horizontal mixer machine with a tube diameter of 60 cm and a width of 90 cm, is capable of mixing 100 kg/batch of animal feed. 2. Horizontal mixer machine using a double screw produces a more homogeneous mixture compared to using the manual method.
Pemberdayaan generasi muda dalam transisi energi hijau melalui pelatihan teknologi fuel cell Iswandi, Iswandi; Supriatno, Supriatno; Susilawati, Susilawati; Hermanto, Tino; Hasibuan, Samsul Abdul Rahman Sidik; Muliono, Rizki; Royani, Ida; Aldori, Yopan Rahmad
Jurnal Anugerah Vol 7 No 1 (2025): Jurnal Anugerah: Jurnal Pengabdian kepada Masyarakat Bidang Keguruan dan Ilmu Pen
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/anugerah.v7i1.7174

Abstract

Krisis energi global dan rendahnya literasi energi bersih di kalangan pelajar mendorong perlunya edukasi teknologi alternatif yang berkelanjutan. Kegiatan pengabdian ini dilatarbelakangi oleh kebutuhan untuk meningkatkan wawasan siswa terhadap teknologi energi terbarukan, khususnya fuel cell. Tujuan kegiatan ini adalah untuk memperkenalkan prinsip dasar kerja teknologi fuel cell serta membangun pemahaman dan keterampilan awal siswa Sekolah Menengah Kejuruan (SMK) sebagai bagian dari edukasi transisi energi hijau. Pengumpulan data dilakukan sebagai langkah evaluatif untuk meninjau keberhasilan kegiatan PkM. Tolok ukur keberhasilan ditentukan berdasarkan peningkatan pemahaman kognitif siswa serta tingkat partisipasi dan respons positif terhadap materi pelatihan. Metode pelaksanaan menggunakan pendekatan pelatihan interaktif, pendidikan masyarakat, dan substitusi ipteks. Peserta kegiatan berjumlah lebih dari 50 siswa jurusan Bisnis dan Manajemen di SMK Swasta Nurul Amaliyah Tanjung Morawa. Teknik pengumpulan data mencakup pre-test dan post-test untuk mengukur peningkatan pemahaman, observasi untuk menilai keterlibatan siswa, serta wawancara semi-terstruktur untuk menggali persepsi dan ketertarikan siswa terhadap teknologi energi bersih. Analisis data dilakukan secara deskriptif kuantitatif dan naratif. Hasil menunjukkan adanya peningkatan skor pemahaman peserta dari 42% menjadi 81%, disertai partisipasi aktif dan ketertarikan tinggi terhadap materi. Peserta juga mampu mengaitkan prinsip kerja fuel cell dengan peluang usaha berbasis energi bersih. Kegiatan ini membuktikan bahwa edukasi ipteks lintas disiplin dapat menjembatani kesenjangan pemahaman teknologi dan membentuk kesadaran technopreneurship. Oleh karena itu, model pelatihan ini berpotensi diterapkan secara lebih luas dalam satuan pendidikan vokasi non-teknik untuk mendukung transisi energi nasional.
Pengujian Mesin Peniris Keripik Pisang untuk Industri Makanan Skala Kecil Iqbal, Mhd.; Hermanto, Tino; Aldori, Yopan Rahmad
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.188

Abstract

Manual oil draining on banana chips takes longer and leaves residual oil, affecting the texture and shelf life. This study uses centrifugal force to develop and test an oil-draining machine for banana chips. The method applied was experimental, with variables including rotation speed, draining time, and material capacity. The results show that the machine reduced oil content by 6% in 1 minute, improving crispness and shelf life.
Analisis Pengaruh Variasi Kecepatan Putaran Pisau Terhadap Kualitas Potongan Bawang Merah Pada Mesin Pengiris Faruqi, Muhammad Dava; Ardaha, Mhd. Taufik; Hermanto, Tino; Aldori, Yopan Rahmad
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.192

Abstract

Manually slicing shallots is challenging for MSMEs engaged in the fried shallot industry. This study aims to analyze the effect of variations in the speed of knife rotation on the quality of the results of the sliced ​​shallots on the slicing machine. The study was conducted experimentally with five variations in rotation speed, measured using a tachometer, and visual observation to assess the quality of the slices. The results showed that the cutting speed increased from 61 kg/hour to 89 kg/hour, with the quality of the slices remaining at 85%. This study recommends the highest speed as optimal for productivity without reducing the quality of the slices.
Inovasi Teknologi Hijau Untuk Masa Depan Dan Peran Keteknikan Dalam Industri Berkelanjutan Di SMA Negeri 1 Tebing Tinggi Rahman Aldori, Yopan; Moerni, Saufa Yardha; Syafitri Rambe, Yunita; Susilawati, Susilawati; Ermita Wulandari, Tika; Muhathir, Muhathir; Maghfirah, Maghfirah
Mejuajua: Jurnal Pengabdian pada Masyarakat Vol. 5 No. 1 (2025): Agustus 2025
Publisher : Yayasan Penelitian dan Inovasi Sumatera (YPIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/mejuajuajabdimas.v5i1.267

Abstract

Permasalahan lingkungan global yang semakin kompleks mendorong perlunya inovasi teknologi hijau sebagai solusi menuju masa depan yang berkelanjutan. Pendidikan memainkan peran strategis dalam membentuk kesadaran generasi muda terhadap pentingnya menjaga lingkungan dan mengembangkan teknologi ramah lingkungan. Kegiatan pengabdian kepada masyarakat ini dilaksanakan di SMA Negeri 1 Tebing Tinggi dengan tujuan utama untuk meningkatkan pemahaman siswa mengenai konsep teknologi hijau serta memperkenalkan peran keteknikan dalam mendukung industri berkelanjutan. Metode pelaksanaan kegiatan dilakukan secara edukatif dan partisipatif melalui penyampaian materi interaktif, diskusi kelompok, serta sesi tanya jawab yang mendorong keterlibatan aktif peserta. Materi yang disampaikan meliputi pengenalan teknologi hijau, studi kasus penerapannya di berbagai sektor industri, dan peran teknik dalam mendukung transformasi industri yang lebih ramah lingkungan. Hasil kegiatan menunjukkan antusiasme tinggi dari para siswa, yang ditunjukkan melalui keterlibatan aktif selama diskusi dan refleksi positif terkait peningkatan pengetahuan mereka tentang teknologi hijau. Selain memberikan dampak pada siswa, kegiatan ini juga memotivasi pihak sekolah untuk mulai mempertimbangkan integrasi tema lingkungan ke dalam kegiatan belajar mengajar, baik itu dalam bentuk tugas ataupun praktik langsung penggunaan teknologi hijau. Untuk rencana jangka panjang, kegiatan ini dapat menjadi inisiator kerjasama antara tim pengabdian dengan pihak sekolah dalam pelaksanaan praktik penggunaan teknologi hijau di sekolah.
Analisis Pengujian Elastisitas Young Modulus Pada Wood Poylmer Composite Dengan Metode Hot Press Sembiring, Bagus Suranta; Aldori, Yopan Rahmad; Handoko, Ari
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.v4i2.226

Abstract

This study aims to determine the Elasticity of Wood Polymer Composite (WPC). The composite was made using 15 grams of wood powder and 30 grams of plastic sheets, processed for 60 minutes at a pressure of 8 MPa. The temperature used was 125°C. The hot press method is one of the techniques commonly used to produce WPC. In this process, a mixture of wood fibre and plastic sheets is heated and pressurised below the temperature to compact and form the composite according to the desired mould. By creating a dogbone-shaped specimen with a distinctive shape, featuring a narrowed centre, the design is intended to ensure that failure occurs at the centre of the specimen when tested, thereby providing more accurate results about the material's strength.
Analisa Kekerasan Dengan Pengujian Vickers Pada Wood Polymer Composite Menggunakan Metode Hot Press Pranata, Hadi; Aldori, Yopan Rahmad; Handoko, Ari
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.v4i2.279

Abstract

Wood Polymer Composite (WPC) is a composite material composed of wood powder and recycled plastic. This material has been widely developed as an environmentally friendly alternative since it combines the natural properties of wood with the advantages of polymers. The manufacturing process involves mixing wood powder and plastic, followed by heating and molding into various structural forms. WPC exhibits high strength, durability, and resistance to environmental conditions, making it a popular alternative to solid wood. A typical composition consists of 50% wood powder and 50% high-density polyethylene (HDPE). In addition to improving wood utilization efficiency, WPC also contributes to reducing plastic waste accumulation that is difficult to decompose in the environment.
Analisis Peleburan Aluminium 3004 Berdasarkan Jumlah Boraks dengan Metode Regresi Linear Faddillah, Fahmi; Aldori, Yopan Rahmad; Suprapto, Suprapto
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.v4i2.282

Abstract

This study aims to analyze the effect of borax as a flux on the melting performance of recycled 3004 aluminum from beverage can waste. The melting process was carried out using an oil-fueled furnace with six borax variations, ranging from 2.5 g to 15 g for 500 g of recycled aluminum. The results showed that the net aluminum mass increased from 209 g to 293 g, while the slag mass decreased from 242 g to 139 g. Linear regression analysis revealed a positive correlation between borax and net mass (R² = 0.9116) and a negative correlation between borax and slag (R² = 0.9135). Therefore, borax proved effective in increasing the yield of clean metal and reducing slag during the recycling of aluminum.
Studi Performa Mesin Pencacah Polimer Komposit Berbasis Uji Laboratorium Sianturi, Danial Jack Marbis; Tumangger, Theo Fredrik; Aldori, Yopan Rahmad; Iswandi, Iswandi; Umroh, Bobby
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.v4i2.290

Abstract

Polymers are the result of monomer polymerization with a lower density than metals but a much smaller elastic modulus, making them less rigid and strongly affected by temperature. This study evaluates the performance of a laboratory-scale crushing machine for polypropylene blended with activated carbon at varying compositions. The machine employed carbon steel rotary blades driven by a 1 HP electric motor through a gearbox transmission. Results showed average crushing times of 3.5–4 minutes/kg. Pure polypropylene produced a 72% fine fraction, while adding 10% activated carbon reduced it to 65%. Crushing efficiency remained above 85%, demonstrating stable performance and feasibility for composite material applications.
Co-Authors Abd Rahman Bin Dullah Adly Zulqarnain bin Mohamad Andri Herlambang Ardaha, Mhd. Taufik Ariyudha, Andhika Arya Rudi Nasution Aryanta Sembiring, Robi Binsar Panjaitan, Binsar Bobby Umroh Darianto, Darianto Darwin, Felix Derlini Diansyah, Diansyah Din Aswan Amran Ritonga Eka Daryanto, Eka Erni Yusnita Etanto Heiliano Wijayanto Faddillah, Fahmi Faruqi, Muhammad Dava Fider Lumbanbatu Firmansyah Nasution, Taufik Giovan Panjaitan, Asido Habib Satria Handoko, Ari Hasibuan, Samsul Abdul Rahman Sidik HENRY ISKANDAR Hermansyah Hermasnyah Ida Royani INDRA HERMAWAN Indra Hermawan Iqbal, Mhd. Iswandi Iswandi Iswandi Iswandi Jubaidah Jubaidah Jubaidah, Jubaidah Jufrizal Jufrizal JUNAIDI Listiyanto, Listiyanto Lisyanto . Maghfirah Maghfirah Marwan Marwan Meidiansyah, Fadli Moerni, Saufa Yardha Muhammad Abdul Rasyid Muhammad Idris Muhammad Idris Muhammad Irwanto Muhammad Yusuf Rahmansyah Siahaan Muhathir, Muhathir Pangestu, Reno Prabowo, Yoga Pranata, Hadi Pratiwi Putri Lestari R. Nurfazriah, Latifah Rambe, Yunita Syafitri Recsi Febian Adiansyah Riana Puspita, Riana Rizki Muliono Ruztamreen Bin Jenal Sandi Saputra Selamat Riadi Sembiring, Bagus Suranta Sianturi, Danial Jack Marbis Sinaga, Willyam Warikson Siswo Pranoto Sugiono, Didik Sukmawati Supardi Supardi Suprapto Suprapto Suprapto Suprapto Supriatno, Supriatno Susilawati, Susilawati Syahra, Assyfa Syurkarni Ali Taufik Wal Hidayat, Taufik Wal Tika Ermita Wulandari Tino Hermanto Tumangger, Theo Fredrik Zarmawan, Husri