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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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ANALISIS KOMPOSISI KOMPOSIT POLIPROPILEN/KARBON AKTIF TERHADAP KEKUATAN BENDING UNTUK APLIKASI PLAT DWIKUTUP FUEL CELL Iswandi Iswandi; Muhammad Idris; Indra Hermawan; Yopan Rahmad Aldori; Muhammad Irwanto
Jurnal Teknovasi : Jurnal Teknik dan Inovasi Vol 9, No 1 (2022): TEKNOVASI APRIL 2022
Publisher : LPPM Politeknik LP3I Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55445/teknovasi.v9i1.661

Abstract

Carbon-based material is one of the main filler materials for the manufacture of polymer composite bipolar plates for fuel cell applications. Some variation materials filler based carbon used on manufacture bipolar plate white high cost.  Determine of low cost filler materials is one of special issue for manufacture bipolar plate. Activated carbon is a alternative for suitable filler material base carbon at polymer composite and easy to find in Indonesia. This study investigates the effect of activated carbon composition in polymer composites on bending strength with a composition of 10, 20, 30, 40 (percent by weight) activated carbon (AC) with a polypropylene (PP) matrix. The sample has fabricated used hot press mouding with mix process at 220o­­­ C temperatures with 320 Psi pressure in 20 minutes. The bending test results with the standard three point bending test ASTM D790-03, The best value was found at a composition of 10% by weight of activated carbon of 26.9 MPa. This achievement has been obtained the Department of Energy, United State Of America (DOE USA) standard is 25 Mpa. This condition due to the polymer's composition of 10% KA to 90% PP, which makes it easier for the polymer to yield higher bonding and hence boost bending strength.
Analisis Pengaruh Panas dan Beban terhadap Kerusakan Traveling Grate pada Boiler Di PLTU Tembilahan 2x7 MW Sandi Saputra; Siswo Pranoto; Yopan Rahmad Aldori; Syurkarni Ali; Junaidi; Andri Herlambang; Muhammad Yusuf Rahmansyah Siahaan; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6094

Abstract

Rack grate is a component composed of rack clip and rack bone arrangement that serves as a dropping cross-section media of coal and as a media of coal burned in the boiler.  As part of the main component, the rack grate can be regarded as one of the components that ensure the success of combustion in the boiler. Failure to this component will certainly interfere with the implementation of boiler operations. In addition to require the boiler to be shut down while repaired, in addition to requiring the boiler to be extinguished during repairs, the inoperability of the boiler makes the steam production process at the PLTU impossible and ultimately the electricity generation process cannot be carried out as usual. Damage to the rack grate component has a type of plastic deformation with variable loads and fluctuating heat, which means that the thermal stress in the system has reached the yield stress point. To find out the root cause of this component damage quickly and accurately, an analysis of the results of the implementation of engineering software in this case Ansys Workbench, and a comparison of actual operating data, and data design is the best choice. Lastly, by evaluating the optimum values of temperature, equivalent stress and strain, total deformation, input process parameters value can be controlled to the desired values, resulting in less stress concentration occurs, so that the damage to the workpiece can be reduced or even eliminated.
Analisis Pengaruh Tinggi Hisap Pompa Sentrifugal Terhadap Kapasitas Dan Efisiensi Pompa Muhammad Abdul Rasyid; Din Aswan A Ritonga; Yopan Rahmad Aldori; Sukmawati; Erni Yusnita; Etanto Heiliano Wijayanto; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6189

Abstract

Pompa adalah peralatan mekanis untuk meningkatkan energi tenakan pada cairan(fluida) yang dipompa dengan mengubah energi mekanis poros penggerak menjadi energi potensial dan energi kinetis fluida. Seiring berkembangnya teknologi, pompa digunakan diberbagai bidang termasuk pemakaiannya dalam bidang indsutri. Pompa Sentrifugal merupakan salah satu jenis pompa yang mempunyai lingkup penggunaan yang sangat luas terkait dengan head dan kapasitas yang dihasilkan. Pada kesempatan ini penulis mencoba memaparkan hasil penelitian tentang unjuk kerja pompa sentrifugal bila dilakukan variasi tinggi hisap pada pompa sentrifugal akan mempengaruhi kapasitas, Head, Daya Hidraulis dan effesiensi pompa sentrifugal. Variasi tinggi hisap dimaksudkan untuk mengetahui peningkatan performance pompa yang terjadi akibat penambahan tinggi hisap pompa. Menambah tinggi hisap pompa sangat berpengaruh terhadap kapasitas aliran air yang dihasilkan, hal ini juga akan mempengaruhi kerja pompa, kecepatan spesifik, daya dan efesiensi pompa. Sehingga dapat diperoleh titik kerja tertinggi pompa sentrifugal dengan Kapasitas (Q) 0,001180 m3/s, Head (H) 6,066 m, Daya Hidraulis (Ph) 70,008 watt, Effesiensi (ɳp) 26,51 %, hal ini dapat terlaksana bila diikuti penambahan daya dari motor penggeraknya.
Pengaruh Penambahan Ukuran Tebal Pipa Air Heater Terhadap Efisiensi Termal Serta Konsumsi Bahan Bakar Pada Boiler PT. Socimas Kapasitas 50T/H Recsi Febian Adiansyah; Derlini; Din Aswan A Ritonga; Yopan Rahmad Aldori; Pratiwi Putri Lestari; Fider Lumbanbatu; Etanto Heiliano Wijayanto; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6193

Abstract

PLTU PT. Socimas saat ini menggunakan  air heater tipe tubular untuk mendukung dan meningkatkan kan produktivitas dari boiler. Penggunaan air heater ini menimbulkan permasalahan baru pada penggunaan air  preheater tipe tubular dengan terjadinya kebocoran pada pipa di dalam air heater. Kerusakan ini  terjadiakibat dari terjadinya gesekan flue gas yang terjadi di secara terus menerus kerusakan ini menyebabkan kurang maksimalnya  penggunaan  air heaterterhadap boiler . kerusakan ini Menyebabkan perusahaan mengganti tebal pipa  air heater, dengan adanya permasalahan ini, penulis mencoba untuk mengetahui efisiensi air heatersetelah terjadinya penggantian pipa dengan diameter awal 35mm dengan tebal 2,5mm didapatkan laju perpindahan panas konveksi aliran dalam sebesar 62547,7 J/s, konduksi sebesar 127530,49 J/s, konveksi aliran luar sebesar 1242750,13 J/s. Setelah terjadi perubahan diameter 37mm dengan tebal 3,5mm didapatkan laju perpindahan panas konveksi aliran dalam sebesar 69142,4 J/s, konduksi sebesar 113825,46 J/s, konveksi aliran luar sebesar 1711397,46 J/s. Setelah laju perpindahan panas diketahui maka penulis membandingkan efisiensi air heater pra penggantian sebesar 52,07% dengan air heater pasca penggantian sebesar 67,66% maka didapatkan selisih penghematan bahan bakar batubara sebesar 67,347 kg/ hari.
PKM IMPLEMENTASI MESIN PENCACAH PLASTIK UNTUK PENGOLAHAN LIMBAH SAMPAH PLASTIK DI DESA SUKA MAJU Suprapto Suprapto; Henry Iskandar; Jubaidah Jubaidah; Yopan Rahmad Aldori; Tino Hermanto; Nukhe Andri Silviana
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2023): Volume 4 Nomor 4 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i4.19458

Abstract

Tingginya limbah sampah plastik merupakan permasalahan global yang berdampak negatip terhadap lingkungan sehingga perlu cara penanggulangan yang effective dan effisien. Kegiatan PKM bertujuan mengembangkan dan mengoptimalkan pengolahan limbah plastik menjadi produk yang bernilai ekonomis tinggi serta mengurangi dampak negatip limbah plastik ke lingkungan. PKM dilaksanakan di mitra pegepul limbah plastik yang berlokasi di daerah Medan Johor. Metode PKM meliputi: sosialisasi program PKM, implementasi mesin pencacah plastik tipe crusher berkapasitas 250 kg/jam, pelatihan pengoperasian/perawatan mesin pencacah palstik dan manajemen keuangan, serta evaluasi dan monitoring. Hasil kegiatan PKM berdampak dengan meningkatnya kapasitas produksi dan nilai jual sampah plastik. Dengan dilakukannya kegiatan ini akan menambah pengetahuan masyarakat dari pelatihan yang telah diberikan. Selain itu, dapat dipraktekkan oleh masyarakat sampah plastik di wilayah kota Medan.
Effect of Laser Distance Measurement for Fatigue Crack Detection on Aluminium Plate Using Laser Doppler Vibro-Meter Tino Hermanto; Arya Rudi Nasution; Habib Satria; Hermansyah Hermasnyah; Yopan Rahmad Aldori; Ruztamreen Bin Jenal; Abd Rahman Bin Dullah; Adly Zulqarnain bin Mohamad
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 2 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i2.3391

Abstract

Fatigue cracks can occur because the material is unable to withstand the load applied repeatedly. A nonlinear vibroacoustic method was introduced to overcome this problem. This is because this method is one of the best solutions because it is suitable for detecting fatigue cracks which is sensitive enough to detect small cracks. The aim of the research is to determine the effect of laser distance measurements on fatigue crack detection using the vibroacoustic method. Therefore, there are steps or procedures that include test object preparation, tensile testing, dynamic tensile testing, and modal analysis. Three different vibration modes are selected to excite the low frequency modes. The vibroacoustic method is a method based on the propagation of high frequency sound waves in solid structures with low frequency excitation. The trained output signal will be converted from the time domain to the frequency domain supported by the use of MATLAB software. The analysis results show that there is a significant influence on the detection of fatigue cracks in aluminum using the vibration acoustic method. The analyzed data shows that measuring the laser distance will influence the crack detection process. Fatigue cracks can occur because the material is unable to withstand the load applied repeatedly. A nonlinear vibroacoustic method was introduced to overcome this problem. This is because this method is one of the best solutions because it is suitable for detecting fatigue cracks which is sensitive enough to detect small cracks. The aim of the research is to determine the effect of laser distance measurements on fatigue crack detection using the vibroacoustic method. Therefore, there are steps or procedures that include test object preparation, tensile testing, dynamic tensile testing, and modal analysis. Three different vibration modes are selected to excite the low frequency modes. The vibroacoustic method is a method based on the propagation of high frequency sound waves in solid structures with low frequency excitation. The trained output signal will be converted from the time domain to the frequency domain supported by the use of MATLAB software. The analysis results show that there is a significant influence on the detection of fatigue cracks in aluminum using the vibration acoustic method. The analyzed data shows that measuring the laser distance will influence the crack detection process.
Analisa Perilaku Aliran Panas Pada Permukaan Desain Heatsink Dengan Menggunakan Software ANSYS Aldori, Yopan Rahmad; Pangestu, Reno
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.907 KB) | DOI: 10.56862/irajtma.v1i2.24

Abstract

The heatsink is a passive heat transfer device used in an electronic component that has a role as a cooler in the system by utilizing heat distribution and being discharged through the fin gaps on the heatsink, in this article we will discuss analyzing the flow behavior of a heatsink using software ANSYS with a variation of design, the simulation carried out is conditional on placing a heatsink on the surface of a system with a heating temperature of 75oC, with a room temperature of 25oC. In this simulation, various designs will be carried out on the heatsink fins, and the design with the largest heat distribution in this article is design (c) with the simulation results of a flux therma gradient of 7152 W/m2.
Pelatihan Pembuatan Wrench menggunakan Teknik kerja Bangku Bagi Mahasiswa di Growth Centre LLDIKTI Wilayah - I Hermawan, Indra; Aldori, Yopan Rahmad; Hidayat, Taufik Wal; Marwan, Marwan
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 1 No 1 (2023): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v1i1.51

Abstract

This training aims to provide students with understanding and practical skills in making wrenches using bench work techniques. A Wrench is a tool used in various industrial and mechanical work, essential in tightening and loosening bolts and nuts. Through this training, students will be introduced to the basic principles of bench work techniques, including hand tools and an understanding of the materials used. The workshop will emphasize practical processes, from reading technical drawings to the final finishing stages. Students will receive instructor guidance in bench work and manufacturing techniques, enabling them to develop valuable hands-on skills in a manufacturing environment. By attending this training, students are expected to be able to apply the learning of the manufacturing process in actual practice. The training results show that all students can complete the products given even though there are still weaknesses, such as less accurate and precise products, because students do not have sufficient experience in hand skills and the use of simple bench work tools.
Implementasi PLTS pada Sistem Pakan Ikan Otomatis untuk Meningkatkan Efisiensi Pengelolaan Peternakan Ikan: Studi Kasus Skala Uji Coba Aldori, Yopan Rahmad; Jufrizal, Jufrizal; Darianto, Darianto; Hermawan, Indra; Supriatno, Supriatno; Darwin, Felix
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 2 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v2i3.153

Abstract

This Community Service aims to develop and implement solar-powered automatic fish-feeding tools to improve operational efficiency in fish farming. Using 10 WP solar panels is expected to reduce dependence on expensive and unstable conventional electrical energy, especially in areas with limited energy access. The method used in this activity was a direct trial at the Medan City Fish Seed and Cultivation Center, where several vital parameters were measured, such as tilt angle, azimuth angle, zenith angle, and time clock angle. The test results show that this device can operate effectively by utilizing solar energy optimally, especially when the sun's position is at the right angle. The efficiency of solar panels reaches a high level, allowing the battery to be charged in a relatively short time. The conclusion of this activity shows that this tool can help fish farmers automate feeding in a sustainable and environmentally friendly manner while reducing operational costs. This technology has the potential to be applied more widely, providing a positive impact in increasing productivity and saving costs in fish farming businesses.
KAJIAN TEKNOLOGI PEMBUATAN GULA SEMUT AREN ORGANIK PADA KELOMPOK TANI JATI REJO 1 DESA PARTIMBALAN Suprapto, Suprapto; Iskandar, Henry; Daryanto, Eka; Listiyanto, Listiyanto; Riadi, Selamat; Jubaidah, Jubaidah; R. Nurfazriah, Latifah; R. Aldori, Yopan; Giovan Panjaitan, Asido; Firmansyah Nasution, Taufik
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 8 (2024): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i8.3004-3012

Abstract

Produk Gula semut aren organik (GSAO) merupakan komoditi yang sangat diminati dipasar nasional dan insternasional. Pengembangan teknologi pengering sangat diperlukan untuk mendapatkan kualitas GSAO yang dapat memenuhi standar pasar. Mesin pengering jenis rak yang dimiliki mitra kelompok tani jati rejo-1 (KTJR-1) belum memenuhi standar teknis pengering. Kegiatan Pengabdian kepada Masyarakat (PKM) bertujuan penerapan ilmu dan ahli teknologi dalam pengembangan teknologi pengeringan rotary drying machine (RDM) untuk meningkatkan kuantitas dan kualitas produk GSAO. Metode pelaksanaan PKM mencakup survei, observasi, pelatihan dan pendampingan, serta analisis mesin pengering jenis rak yang ada di mitra. Hasil rancangan mesin dan perpindahan panas dapat dijadikan dasar oleh mitra dalam fabrikasi sebuah mesin pengering dengan menerapkan prinsip perpindahan panas yang effisien untuk meningkatkan kualitas dan efisiensi produksi GSAO.
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