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All Journal AUSTENIT SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Media Mesin: Majalah Teknik Mesin Jurnal Rekayasa Mesin ASEAN Journal of Chemical Engineering AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Teknologi International Journal of Research in Vocational Studies (IJRVOCAS) MACHINERY: Jurnal Teknologi Terapan Jurnal Polimesin International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Fatahul Arifin, Fatahul
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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 Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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PEMANFAATAN LIMBAH SERBUK BESI UNTUK BAHAN SELUBUNG RUANG BAKAR KOMPOR BIO-MASS TIPE ROKET Arifin, Fatahul
AUSTENIT Vol. 3 No. 01 (2011): AUSTENIT: April 2011
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Kompor adalah alat yang digunakan untuk memasak, menggoreng dan merebus, kebanyakan orang biasanya menggunakan kompor minyak dan gas dalam kegiatan memasak di rumah tangga mereka. Kompor menurut jenisnya ada bermacam ragam, diantaranya kompor gas, kompor minyak tanah, kompor listrik dan masih banyak lainnya. Namun jarang orang menggunakan kompor bio-mass, yang pada dasarnya banyak keuntungan yang dapat diperoleh dengan menggunakan kompor bio-mass ini, salah satu yaitu memanfaatkan sampah organik yang tidak digunakan sehingga bermanfaat dan berdaya guna sebagai bahan bakar. Maka dari itu dilakukan pembuatan kompor bio-mass dengan menggunakan serbuk besi dan campuran semen sebagai perekatnya untuk menggantikan batu tahan api atau pun selubung pipa besi. Kompor ini berbeda dengan yang lainnya dan menggunakan bahan bakar yang mudah didapat seperti arang kayu, tempurung kelapa atau sabut kelapa. Hasilnya menunjukkan kompor ini dapat mencapai suhu 146°C dalam waktu 40 menit untuk konsumsi bahan bakar Tempurung kelapa 1 kg.
THE EXCELLENCES OF EXOSKELETONS FOR MEDICAL EQUIPMENT Arifin, Fatahul; Azharuddin, Azharuddin
AUSTENIT Vol. 5 No. 1 (2013): AUSTENIT: April 2013
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

his paper is aimed to inform the advantages of exohand as device that is used in industry and medical treatment on literature review. The  exohand  is manufactured by Festo, Inc. It has many advantages such as design is more comfortable to human or in the other words is ergonomic than the others design. Not only using the latest technology but also consent about the product method alike using selective laser sintering. This model of exoskeletons can be applied in many fields, such as industry and medical treatment for stroke patients.
STUDI PENYUSUTAN PEMBUATAN GIGI PALSU DENGAN 3D PRINTING FDM PENDEKATAN METODE TAGUCHI Zamheri, Ahmad; Arifin, Fatahul; Syahputra, Angga Panjy
AUSTENIT Vol. 12 No. 2 (2020): AUSTENIT: Oktober 2020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Fused Deposition Modeling (FDM) is a 3D Printing technique used to print products using filaments as material. The printed product has ideal geometric characteristics if it has meticulous size and perfect shape. The main objective of this research is to find out the shrinkage of the material is the filament human denture product using prameter is different. In the process of testing this test using the tool testers Digimatic Vernier Caliper Mitutoyo Absolute, which uses accuracy 0,02 mm. The Taguchi method are used to analyzed the data result. Manufacture process which is used Layer Height 0,15 mm, Print Speed 20 mm/s, dan Print Temperature 220 ⁰C.Keywords: FDM 3D Printing, Shrinkage, Taguchi 
DISAIN ALAT PENEPAT PENGELASAN KIT PEMADAM KEBAKARAN Wilza, Romi; Novarika, Wirda; Rasid, M.; Herlambang, Yusuf Dewantoro; Arifin, Fatahul; Ikbal, Muhammad; Hadi, Kms. M.
AUSTENIT Vol. 14 No. 1 (2022): AUSTENIT: April 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i1.4397

Abstract

Fire is a disaster that no one wants. Fires can occur anytime and anywhere, one of which is offices, buildings, warehouses, and even forests. Fires in buildings can cause losses in both material and non-material properties. To extinguish the fire, you need supporting equipment, for example a Fire Extinguisher Kit (FEK), which is a fire hose reel. To produce this tool, a production aid is needed in terms of gripping the workpiece that will be used as a fire fighting kit product. Fire Hose Reel production aids are production workpiece holder tools that are used in order to make accurate doubling of components to get good work results in production, of course there should be compatibility in terms of the position of the workpiece with the machine used. The fixing device is used which is designed to position, hold, and support each part so every welding performed is within the specified limits. In the process of designing and manufacturing, this Welding Tool for Production of FEK uses software to calculate the load that these production aids can withstand and for the manufacturing process tools such as cutting grinders, drilling machines and other bench work tools are used. This tool can withstand the weight of objects up to 50 kg. with a deflection of 0.055 mm.
Comparative Study on the Performance of Three-Blade and Four-Blade Archimedes Wind Turbines at Low Wind Speeds Using Ansys Simulation Faroja, Anas; Arifin, Fatahul; RS, Carlos
International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Vol. 4 No. 1 (2026): IJMEAS - January
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijmeas.v4i1.476

Abstract

The Archimedes wind turbine is a promising technology for renewable energy applications in low wind speed conditions, yet the optimization of the blade geometry still requires a comprehensive investigation. This study aims to analyze the effect of variations in the number of blades (three and four) and pitch angles (50°, 55°, 60°, and 65°) on the aerodynamic performance of Archimedes wind turbines using the ANSYS 2024 R1 Computational Fluid Dynamics (CFD) simulation. The research methodology applied the SST turbulence model k-ω with a constant Tip Speed Ratio (TSR) at a value of 1 to isolate the influence of geometric parameters on the coefficient of power (Cp). The simulation was carried out with a residual convergence criterion of 0.001 throughout 1000 iterations until a stable solution was reached. The results of the analysis showed that a four-blade configuration with a pitch angle of 65° resulted in an optimal Cp of 0.2027, representing an 85.6% performance improvement over the three-blade configuration of 50° (Cp = 0.1092). Velocity and pressure contour visualization revealed that the four blades demonstrated superior attachment flow, a more even distribution of pressure differential, and an organized wake structure that minimized energy dissipation. The study's conclusions identified a four-blade configuration at a pitch angle range of 60-65° as the optimal design for Archimedes wind turbine applications in low wind speed conditions, making a significant contribution to the development of renewable energy technologies for urban and tropical regions.
Comparative of field study of three- and four-bladed archimedes spiral wind turbines under natural low wind conditions Faroja, Anas; Arifin, Fatahul; RS, Carlos
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8908

Abstract

Archimedes Spiral Wind Turbines (ASWTs) are suitable for small-scale energy harvesting in low wind environments.However, field-based evaluation on the effect of blade number under natural wind conditions remains limited. This study experimentally examines the influence of blade number on rotational behavior and electrical performance under natural wind conditions, providing empirical insights beyond controlled laboratory and numerical studies. Three-bladed and four-bladed turbine configurations were fabricated and tested in field conditions with wind speeds ranging from 0.8 to 4.0 m/s. Wind speed, rotational speed, voltage, current, and electrical power were measured and analyzed.  The results show that the four-bladed turbine achieved earlier cut-in behavior and consistently higher electrical output across the tested range, reaching a peak power of approximately 0.29 W at wind speeds of 4.0 m/s, compared with about 0.09 W for the three-bladed configuration. The improved performance was attributed to enhanced torque continuity and rotational stability rather than increased rotational speed alone. Transient current peaks and zero-current events observed near 1.5 to 2.0 m/s were attributed near-cut in electromechanical behavior under short-term wind fluctuations. These results confirm that blade number significantly affects ASWT performance in low wind environments and provide practical guidance for optimizing small-scale wind turbine design.
Perbandingan Laju Korosi Baja Mild Steel yang Dilapisi Galvanis dan Cat pada Limbah Sawit Izmail, Muhammad Aidil Fitra; Arifin, Fatahul; Rizal, Syamsul
Jurnal Teknologi Vol 26, No 1 (2026): April 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i1.8931

Abstract

This study aims to quantitatively compare the corrosion rate of mild steel coated with galvanizing, black spray paint, silver spray paint, and white spray paint when exposed to palm oil mill effluent. The experiment was conducted using the weight loss method in accordance with ASTM G31 standards. Mild steel specimens with dimensions of 150 mm × 25 mm × 2 mm were prepared, coated, and immersed in 4 L of conditioned palm oil wastewater for 22 days. Environmental parameters, including pH (4.5–5.2) and temperature (28–34°C), were continuously monitored throughout the testing period. Each test was performed in triplicate to ensure data reliability. The results indicate that coating type has a significant effect on corrosion resistance. Galvanized specimens exhibited the best performance, with a corrosion rate approaching 0 mm/year and a mass loss of ≤1%. In contrast, black spray-coated specimens showed the highest corrosion rate of 0.77 mm/year and mass loss exceeding 1.8%, followed by silver and white coatings, each with a corrosion rate of 0.26 mm/year. The superior performance of galvanizing is attributed to its sacrificial protection mechanism and the formation of stable passive layers such as ZnO and ZnCO₃, which effectively inhibit corrosion processes. In conclusion, galvanizing is the most effective coating method for protecting mild steel in aggressive environments such as palm oil mill effluent.
Co-Authors A.A. Ketut Agung Cahyawan W Abu Hasan Ade, Ade Putra Maulana AIDA SYARIF Alif Burhanuddin Yusuf Habibie Anis Roihatin Apriansyah, Icvan Arissetyadhi, Iwan Arnoldi, Dwi Azharuddin Azharuddin Azharuddin, Azharuddin Bayumi Setiawan Effendi, Sairul Fahri Fahri Faroja, Anas Firdaus Firdaus Fitrianza Franando, Franando Hadi, Kms. M. Hanif Akbar, Ikhlasul Izmail, Muhammad Aidil Fitra Januartha, Andrian Sagisky Kalsum, Leila kms, m amin khaitami Kurnianingsih Kurnianingsih, Kurnianingsih Martomi, Eka Satria Meidian Pratama, Risco Muhammad Arif Fadilah Muhammad Ikbal Muhammad Insan Kamil, Muhammad Insan Muhammad Yerizam Muhammad, Novriadi Novarika, Wirda Okviyanto, Toni Putri, Fenoria Radjiq, Akhmad Rasid, M. Robert Junaidi RS, Carlos Rusdianasari Rusdianasari Satria Martomi, Eka Shangra, Kevin Dwiva Sundari, Ella Syahputra, Angga Panjy Syamsul Rizal Tresna Dewi Wijaya Pratama, Agung Wilza, Romi Yahya Yohandri Bow Yusuf Dewantoro Herlambang Zamheri, Ahmad