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All Journal Jurnal Teknik Mesin Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Wahana Ilmuwan Jurnal Elemen JURNAL CRANKSHAFT Majamecha Jurnal Foundry Journal of Engineering and Technological Sciences
Sigit Iswahyudi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Jurnal Elemen

 1 
ANALISIS VARIASI KEMIRINGAN SUDUT TURBIN SINGLE BLADE TERHADAP EFISIENSI DAN DAYA PADA ARCHIMEDES SCREW MENGGUNAKAN COMPUTIONAL FLUID DYNAMICS (CFD) Ahmad, shofiyuddin Ali; Fajarningrum, Nurmala Dyah; Iswahyudi, Sigit
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.291

Abstract

The potential for renewable energy in Indonesia is abundant, such as water energy. This energy potential can be used for Micro Hydro Power Plants (PLTMH). This study aims to study the effect of turbine head angle and screw angle parameters on the efficiency and power of screw-type water turbines. The angles used are turbine shaft angles of 20 °, 25 °, and 30 ° at screw angles of 22 ° and 26 °. Then a design was made using Autodesk Inventor and then simulated using Ansys software. The results of the study showed that the greatest power and the greatest turbine efficiency were obtained at a screw angle of 26 ° with a turbine shaft angle of 30 ° with a power value of 80072.98 watts and an efficiency of 95.37%. While the lowest power and efficiency were at a screw angle of 22 ° and a shaft angle of 20 ° with a power value of 72643.44 watts with an efficiency of 86.52%. So from this research, it was found that the good angle value is at the variation of the thread angle of 26° and the turbine shaft angle of 30°.
ANALISIS VARIASI KEMIRINGAN SUDUT TURBIN SINGLE BLADE TERHADAP EFISIENSI DAN DAYA PADA ARCHIMEDES SCREW MENGGUNAKAN COMPUTIONAL FLUID DYNAMICS (CFD) Ahmad, shofiyuddin Ali; Fajarningrum, Nurmala Dyah; Iswahyudi, Sigit
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.291

Abstract

The potential for renewable energy in Indonesia is abundant, such as water energy. This energy potential can be used for Micro Hydro Power Plants (PLTMH). This study aims to study the effect of turbine head angle and screw angle parameters on the efficiency and power of screw-type water turbines. The angles used are turbine shaft angles of 20 °, 25 °, and 30 ° at screw angles of 22 ° and 26 °. Then a design was made using Autodesk Inventor and then simulated using Ansys software. The results of the study showed that the greatest power and the greatest turbine efficiency were obtained at a screw angle of 26 ° with a turbine shaft angle of 30 ° with a power value of 80072.98 watts and an efficiency of 95.37%. While the lowest power and efficiency were at a screw angle of 22 ° and a shaft angle of 20 ° with a power value of 72643.44 watts with an efficiency of 86.52%. So from this research, it was found that the good angle value is at the variation of the thread angle of 26° and the turbine shaft angle of 30°.
PENGARUH JENIS PEWARNA PADA PROSES ANODIZING ALUMINIUM T6 6061 TERHADAP HASIL PELAPISAN Hidayat, syarif; Darmo, Adityo Noor Setyo Hadi; Iswahyudi, Sigit
ELEMEN : JURNAL TEKNIK MESIN Vol. 12 No. 1 (2025)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v12i1.321

Abstract

This study examines anodizing on aluminum 6061 using chemical dyes (printer ink and clothing dye) and a natural dye (turmeric) at concentrations of 5%, 10%, and 15% w/v. The anodizing process was conducted at 12 volts, 2.5 amps, for 30 minutes. The research aims to evaluate the effects of dye type and concentration on color brightness, oxide layer thickness, and wear rate. Results indicate that dye concentration influences brightness, with the best outcome at 10% w/v printer ink (brightness level 5.4). Oxide layer thickness was unaffected by the type or concentration of dye used. Wear testing revealed that dyeing did not significantly affect wear resistance, with the highest specific wear rate on untreated material (11.01 x 10⁻⁴ mm³/kg.m) and the lowest on 10% w/v printer ink (7.63 x 10⁻⁴ mm³/kg.m). Overall, the findings suggest a limited impact of dye on the anodized aluminum's wear properties.
Co-Authors Agung Trihasto Agus Suprihanto Ahmad, shofiyuddin Ali Arif Rahman Arif Rahman Saleh Darmo, Adityo Noor Setyo Hadi Dewi, Rany Puspita Dwicahya, Muhammad Ridwan Rio Dzikron Muchlisin Endang Mawarsih Fajarningrum, Nurmala Dyah Kun Suharno Muhaimin, Rijal Arif Nafi', Zuhdi Baghiz Zain Nur Hayati Nurhadi Prayoga, Kurniawan Bayu Purnomo , Sigit Joko Rahman Saleh, Arif Rany Puspita Dewi Rizky Hermawan Setyawan Bekti Wibowo Setyawan, Fajar Andre Sigit Mujiarto Sutrisno, Seno Suyitno Suyitno Syarif Hidayat Taufik, Ikhwan Trisma Jaya Saputra Wandi Arnandi