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All Journal Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN AJIE (Asian Journal of Innovation and Entrepreneurship) Journal of Energy, Mechanical, Material and Manufacturing Engineering STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal Elemen PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Mechanical Engineering for Society and Industry Automotive Experiences JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Imam Sholahuddin
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Jember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation

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PENGENDALIAN LAJU ALIRAN SERBUK ALUMINIUM TERHADAP FABRIKASI ALUMINA DENGAN MENGGUNAKAN METODE DC THERMAL PLASMA Agung Budi C; Imam Sholahuddin; Salahuddin Junus; m. Fahrur Rozy R; Novi Nur H
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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Abstract

Alumina (Al2O3) merupakan bahan rekayasa struktural paling hemat biaya dan banyak digunakan sebagai material keramik. Alumina dapat digunakan sebagai media pelapisan dan anoda korban karena alumina mempunyai sifat tahan korosi serta tahan terhadap asam dan basa. Metode penelitian ini menggunakan metode DC thermal plasma arus 20A dengan waktu 10 detik. Tujuan dari penelitian ini adalah dapat mengetahui warna alumina dari setiap variasi laju aliran serbuk aluminium dan mengetahui hasil rata-rata dari laju aliran serbuk aluminium. Dari hasil penelitian ini dengan pengendalian laju aliran serbuk yang meningkat dapat berpengaruh terhadap warna serbuk alumina dan laju aliran serbuk dari aluminium. Kata Kunci: DC thermal plasma, Laju Aliran Serbuk Aluminium, Alumina.
PENGARUH FRAKSI VOLUME SERAT TEBU TERHADAP KEKUATAN TARIK DAN BENDING KOMPOSIT UNSATURATED POLYESTER-AMPAS KOPI Yanuar Alditya Nugraha; Dedi Dwi Laksana; imam sholahuddin
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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Abstract

Bagasse fiber (BF) can be utilized as a reinforcement on composites especially because it is environmentally friendly and comes from renewable resource. In this case, composites use chooped type fibers and manufacturing processes with hand layup method. The volume fraction of unsaturated polyester (UP) as a matrix fixed at 60%, and the fraction of BF and SCG filler varied by 0:40, 10:30, 20:20, 30:10, 40:0. In the application of composite panels, mechanical properties become the main focus in mixing beside to obtaining other characteristics. Addition of spent ground coffee particles (SCG) which decreases the tensile and flexural properties of composites, can be recovered by adding bagasse fiber. The best fraction composition occurred at 10:30 (10BF30SCG60UP), which increased the tensile strength composite (40SCG60UP) by 35.88% and the bending by 14.97%. Eventually, with the cheap, simple method and utilization of industrial waste show the successful experiment to produce stronger and more useful material. Keywords: Bagasse fiber, Composite panel, Mechanical properties.
PENGARUH SOLUTION TREATMENT TERHADAP KEKERASAN KOMPOSIT ADC12/nano-Al2O3 Andi Kurniawan; Imam Sholahuddin; Salahuddin j; Santoso Mulyadi
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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Abstract

Komposit logam atau Metal Matrix Composite (MMC) merupakan material yang dibentuk dengan menggabungkan dua material atau lebih untuk memperoleh material baru yang mempunyai sifat mekanik yang lebih baik. MMC terdiri dari matriks dan reinforce, matriks dari MMC biasanya menggunakan logam lunak seperti aluminium, dan reinforce menggunakan material keramik berukuran mikro hingga nano seperti SiC, Al 2 O 3 , dsb. Semakin kecil ukuran partikel dari reinforce maka semakin kecil juga tingkat porositas dari MMC. Pemberian proses perlakuan panas terhadap Aluminium memiliki bermacam-macam tujuan, yang salah satunya adalah untuk menyeragamkan butiran, untuk memperhalus butiran, menaikkan kekerasan, menambah keuletan, meningkatkan machinability ataupun untuk tujuan lainnya. Maka untuk mendapatkan sifat-sifat tersebut diperlukan proses perlakuan. Metode heat treatment T6 dengan variasi solution treatment dengan suhu 540 °C selama 2 jam, 540 °C selama 4 jam, 540 °C selama 6 jam dan 540 °C 8 jam, kemudian di artifial aging dengan suhu 185 °C selama 6 jam. Dengan hasil kekerasan terbaik 81,96 HRB untuk solution treatment suhu 540 °C selama 8 jam. Kata Kunci: Solution Treatment, Aluminium ADC12, MMC, Mechanical Properties, Hardness
PENGARUH JUMLAH LAMINA FIBERGLASS TERHADAP KEKUATAN TARIK KOMPOSIT SPENT COFFEE GROUND DENGAN METODE VACUUM MOLDING Masfeya Eka Hermiansyah; Salahuddin Junus; Dedi Dwi Laksana; Imam Sholahuddin; Sumarji Sumarji; Yanuar Alditya Nugraha
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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Abstract

Komposit ampas kopi dengan berpenguat serat E-Glass Chopped Strand Mat (CSM) merupakan material baru yang menarik untuk diteliti. Keunggulan menggunakan ampas kopi (SCG) ini adalah harga yang murah, ramah lingkungan, dan mempunyai karakteristik dapat menetralkan bau yang tidak sedap. Tujuan penelitian ini adalah untuk mengetahui karakteristik kekuatan tarik komposit berpenguat serat E-Glass dan menggunakan partikel ampas kopi (filler). Dalam penelitian ini terdapat 5 varian lapisan lamina, kemudian dengan menggunakan partikel ampas kopi dan tanpa partikel ampas kopi, variasi 1 lamina serat E-glass tanpa SCG dan 1 lamina serat E-glass menggunakan SCG sampai 4 lapisan serat E-Glass. Pembuatan spesimen komposit menggunakan metode vacuum molding dengan tebal spesimen mengikuti ketebalan serat E-Glass. Pengujian kekuatan tarik menggunakan standart ASTM D 3039. Berdasarkan hasil penelitian kekuatan tarik terbesar pada 1 layer serat E-Glass tanpa ampas kopi dengan nilai 118,92 MPa. Sedangkan kekuatan tarik terendah pada 4 layer serat E-Glass tanpa ampas kopi dengan nilai 62,26 MPa, sedangkan kekuatan tarik terbesar menggunakan ampas kopi pada 1 layer serat E-Glass didapatkan nilai 94,1 MPa, sedangkan yang terkecil pada variasi 0 layer E-glass dengan ampas kopi 7 MPa. Dari hasil analisis yang telah dilakukan bahwa ampas kopi dapat menurunkan kekuatan Tarik, karena sifat dari ampas kopi sendiri yang mudah beraglomorasi mengakibatkan pembasahan yang kurang sempurna terhadap partikel ampas kopi. Kata Kunci:, Panel Komposit, Vacuum Molding, Sifat Mekanik , ampas kopi
PENGARUH ELEKTRODA TEMBAGA PADA DC THERMAL PLASMA DAN VARIASI WAKTU PROSES TERHADAP LAJU PRODUKSI ALUMINA Novi Nur Hamimah; Imam Sholahuddin; Salahuddin Junus; Santoso Mulyadi; Agung Budi Cahyono
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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Abstract

Alumina is a material that is currently being developed because it has many benefits in the field of industry. Alumina in powder form can be used as catalyst in casting process, coating or coating and composite material. The manufacture of alumina powder with DC Thermal Plasma method began to be developed by many industries. This method is more efficient and more production results. The principle of thermal plasma DC is to evaporate aluminum powder into aluminum oxide with plasma at plasma velocity in reactor tube with temperature which can reach 40000 K. Purpose of research to know the production rate of alumina powder produced. The processing time of the aluminum powder stream is used as a variation to support the achievement of an appropriate production rate. The use of copper electrodes in plasma torch can increase the purity of alumina powder with 96% content, in addition to the use of copper electrodes more durable, easy to obtain and economical. Time variations used were 10, 20, 30 and 40 second seconds oxygen rate rate 55 scfh and flow powder 10 scfh. The results showed that the average variation of 10 seconds was able to produce an average alumina powder of 0.446 gram with a production rate of 0.115 grams / second seconds. The time variation of 40 seconds was able to produce an average alumina powder of 1.776 grams with a production rate of 0.44 grams / sec . From the research results it can be concluded that the higher variation of process time can increase the production rate of alumina powder and the use of copper electrode can save the electrode usage significantly so that the production rate also increase. Keywords: DC Thermal Plasma, alumina, time process, production rate
PENGARUH ELEKTRODA TEMBAGA PADA DC THERMAL PLASMA DAN VARIASI WAKTU PROSES TERHADAP LAJU PRODUKSI ALUMINA Novi Nur Hamimah; Imam Sholahuddin; Salahuddin Junus; Santoso Mulyadi; Agung Budi Cahyono
ELEMEN : JURNAL TEKNIK MESIN Vol 4 No 2 (2017)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (184.499 KB) | DOI: 10.34128/je.v4i2.61

Abstract

Alumina merupakan material yang saat ini mulai dikembangkan karena memiliki banyak manfaat terutama dalam bidang industri. Alumina dalam bentuk serbuk dapat digunakan sebagai katalis dalam proses pengecoran, lapisan atau coating dan bahan komposit. Pembuatan serbu k alumina dengan metode DC Thermal Plasma mulai banyak dikembangkan oleh indusri. Metode ini diyakini lebih efisien dan hasil produksi yang lebih banyak. Prinsip DC thermal plasma adalah menguapkan serbuk aluminium menjadi aluminium oksida dengan melewatkannya pada api plasma dalam tabung reaktor dengan suhu yang dapat mencapai 40000 K. Tujuan penelitian adalah untuk mengetahui laju produksi serbuk alumina yang dihasilkan. Waktu proses aliran serbuk aluminium digunakan sebagai variasi untuk mendukung tercapainya laju produksi yang sesuai. Penggunaan elektroda tembaga pada torch plasma dapat meningkatkan kemurnian serbuk alumina dengan kadar 96%, disamping itu pemakaian elektroda tembaga lebih awet, mudah didapatkan dan ekonomis. Variasi waktu yang digunakan yaitu 10, 20, 30 dan 40 detik sedangkan laju aliran oksigen 55 scfh dan aliran serbuk 10 scfh. Hasil menunjukkan bahwa variasi terendah yaitu 10 detik mampu menghasilkan serbuk alumina rata-rata 0.446 gram dengan laju produksi 0.115 gram/detik sedangkan va riasi waktu 40 detik mampu menghasilkan serbuk alumina rata-rata 1.776 gram dengan laju produksi sebesar 0.44 gram/detik.Dari hasil penelitian dapat disimpulkan bahwa semakin tinggi variasi waktu proses dapat meningkatkan laju produksi serbuk alumina dan penggunaan elektroda tembaga dapat menghemat pemakaian elektroda secara signifikan sehingga laju produksi juga semakin meningkat.
STUDI EMISI SPEKTRA PADA SINTESIS PEMBAKARAN METAL ALUMINIUM DALAM PLASMA-UDARA Imam Sholahuddin; Andi Sanata
ROTOR Vol 15 No 1 (2022)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.308 KB) | DOI: 10.19184/rotor.v15i1.31133

Abstract

Research on emission spectra of metal combustion at temperatures above the boiling point of Al has been successfully carried out. This method can be used as a qualitative characterization of the presence of elements or compounds involved in the combustion process. Recording of emission spectra data was carried out during the process of burning Al powder with oxygen O in an air plasma flame at atmospheric pressure. The burning characteristic of Al was detected at the peak intensity of the wavelength λAl = 396 nm, and the reaction products of AlO with the peak intensity of the wavelength λ­AlO were 471, 489 and 512 nm, respectively. The absolute temperature of the plasma flame black body was 5660 K based on the highest peak intensity λAlO = 512 nm. The increase in emission intensity was quite significant when Al was started to be injected at 1.25 seconds, followed by an unstable plasma form. The steady state of the plasma flame indicates a full reaction in the vapor phase of AlO(g) in the form of Al sub-oxide and alumina before condensing on the outer surface area of ​​the plasma. High temperature thermal plasma-air can increase the homogeneity of the atomization process of particles into gaseous vapor which is an important initiation where nanoscale AlO particles begin to form.
Effect of airflow rate and honeycomb channels addition on the efficiency of bagasse-fuelled top-lit updraft (TLUD) gasification stove Clarissa Putri Sholeha; Muhammad Trifiananto; Mahros Darsin; Andi Sanata; Imam Sholahuddin; Ariyo Anindito
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 9 No. 1 (2024)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v9i1.31776

Abstract

The use of Liquefied Petroleum Gas (LPG) fuels has increased over time and has triggered the innovation of renewable fuels that do not affect the environment. This renewable fuel is biomass. Biomass is derived from organic materials of plants or animals that can be used as fuel. The conversion of biomass into thermal energy using gasification stoves can increase thermal efficiency up to twice that of conventional biomass combustion. Common stoves that use nowadays is Top-Lit Updraft (TLUD) gasifier that easy to optimize. This type of gasifier has a simple design and can be fuelled with any type of biomass with a water composition of less than 20%. Gasification stoves have so far been developed using various biomass fuels, one of which is bagasse waste. Bagasse is also easy to obtain in Indonesia because it has an abundant number of quantities. In addition to the fuel aspect, the ability of the gasification stove to produce good thermal efficiency depends on the stove design, such as stove type, stove dimensions, and combustion airflow rate. It is tested with the water boiling test method using variations of airflow rate of 2 m/s, 3.5 m/s, 5 m/s, and 6.5 m/s and honeycomb channels addition. As a result, it reached 30% thermal efficiency.
Characterization of Combustion in Cylindrical Meso-Scale Combustor with Wire Mesh Flame Holder as Initiation of Energy Source for Future Vehicles Sanata, Andi; Ilminnafik, Nasrul; Asyhar, Muhammad Maulana; Nanlohy, Hendry Y.; Kristianta, Franciscus Xaverius; Sholahuddin, Imam
Automotive Experiences Vol 7 No 1 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.10715

Abstract

The research aims to analyze and reveal combustion characteristics in a Cylindrical Meso Scale (CMS) Combustor with a wire mesh flame holder as a reference for designing a compact, efficient, and high-density energy source for future vehicles. This experiment analyzes the combustion ’s of a butane gas (C4H10)-air mixture in a cylindrical meso-scale (CMS) combustor with the addition of wire mesh flame holder on the stability of the combustion flame, as initiation of future vehicle energy source. The diameter of the CMS combustor with wire mesh flame holder is varied to give an idea of the effect of heat loss on the combustion flame's characteristics. The results show that the wire mesh as a flame holder is essential in the combustion stabilization mechanism. A stable flame can be stabilized in a CMS combustor with wire mesh. Variations in the diameter of the CMS combustor will result in variations in the surface-to-volume ratio, heat loss, and contact area of the wire mesh flame holder. At a large diameter, it produces the characteristics of a combustion flame with a more stable flame stability limit than a smaller diameter, a dimmer flame visualization than a smaller diameter at the same air and fuel discharge, a more distributed flame mode map area than the smaller diameter, lower flame temperature and combustor wall temperature than the smaller diameter, and relatively higher energy output than the smaller diameter.
PENGARUH RANGKAIAN SEL PELTIER TERHADAP KINERJA MINI REFRIGERATOR PORTABLE Firmansyah, Gilang; KW, Robertoes Koekoeh; Ilminafik, Nasrul; listyadi S, Digdo; Sholahuddin, Imam
STATOR: Jurnal Ilmiah Teknik Mesin Vol 7 No 1 (2024): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Thermoelectric Cooler (TEC) / Peltier cooler box requires DC electric current in operation, so that it can be used as a tool to store portable vaccines that are useful in areas that do not have AC electricity flow. The research method uses experimental methods by making the previous research as a reference for conducting experiments with series variations on TEC. This study uses 2 TECs with a series of series and parallel TEC circuits on polyurethane cooler boxes 5,5 L (280 x 180 x 200) mm, power supplied to series and parallel TEC circuits of 20 W, 30 W, and 40 W while taking data is carried out for 60 minutes. The purpose of the study was to determine the effect of TEC cooling on the cooler, COP value, and efficiency on the system. The cooling capability of the TEC in the cooler shows the temperature in the cooler with the variation of the TEC parallel circuit lower than the series TEC. Calculation of the COP value shows the greater power given to the TEC, the COP value will be smaller, the COP value of the parallel circuit at minute 1 - 3 minutes is smaller than the series TEC, but in the 60th minute the difference in COP value between TEC series and The parallel circuit TEC is not too large. Calculation of cooling box efficiency with vaccine loading shows the highest efficiency is a parallel circuit TEC of 25,84% with input power in a 20 W system and a cooling load of 5,17 W, while the lowest efficiency is a series circuit TEC of 13,48% with input power 40 W and cooling load of 5,39W.
Co-Authors Agung Budi C Agung Budi Cahyono Agus Triono Andi Kurniawan Andi Sanata Ardian Dwi Saputra Arief Ginanjar Dirgantara Aris Zainul Muttaqin Ariyo Anindito Asyhar, Muhammad Maulana Clarissa Putri Sholeha Dani Hari Tunggal Prasetiyo Dedi Dwi Laksana Dedi Dwilaksana Digdo Listyadi, Digdo Dimas Ilham Rasyid Dwi Djumhariyanto Gilang Firmansyah, Gilang Haidzar Nurdiansyah Hari Arbiantara Basuki Harry Sutjahjono Havid Arifian Rochman Hendry Y. Nanlohy Ilminafik, Nasrul Imam Rudi Sugara Kristianta, Franciscus Xaverius Kristianta, FX. KW, Robertoes Koekoeh Linda Kurnia Supratiningsih Listiyadi, Digdo M. Fahrur Rozy H M. Fahrur Rozy Hentihu m. Fahrur Rozy R Mahros Darsin Masfeya Eka Hermiansyah Muhammad Dimyati Nashrullah Muhammad Trifiananto Nashrullah, M. Dimyati Nasrul Ilminnafik Novi Nur H Novi Nur Hamimah Panithasan, Mebin Samuel Ridho Unggul Nur Rahmadi Robertus Sidartawan Rozy, M. Fahrur Salahuddin j Salahuddin Junus Salahudin Junus Santoso Mulyadi Stujanjono, Hary Sumarji Taka, Ario Kristian Ummi Sholikhah Wiyono, Pandu Akbar Iqrofasya Wiyono Yanuar Alditya Nugraha