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All Journal Rekayasa Mesin Abdi Masya Majalah Teknik Mesin
Raharjo, Emanuel Budi
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PENGARUH JUMLAH SUDU TERHADAP KINERJA TURBIN SAVONIUS TIPE DRAG PADA ALIRAN AIR DALAM PIPA Jamaldi, Agus; Purwono, Arif Hidayat; Andriyansyah, Deni; Raharjo, Emanuel Budi
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1338

Abstract

The concept of clean and renewable energy is currently a focus developed continuously. One of the abundant sources of clean and renewable energy is water. A water turbine is a mechanism to generate electrical energy by utilizing the water flow. Pico or nano hydro turbines produce electrical energy by taking advantage of the flow of water that rotates the shaft of the electric generator. This experimental study aims to analyze the effect of differences in the number of blades on a Horizontal axis drag-type Savonius turbine mounted of water flow in a vertical pipe. The variations of blades number used in the study are 3, 4, 6, 8, 10, and 12. The potential energy of the water is kept constant with a constant head of 2 meters. Four main parameters used as a benchmark for the performance of water turbines are rotor rotation, voltage, current and electrical power generated. The results showed that the rotor rotation, voltage, current, and generated electrical power decreased as the number of blades used increased. The water turbine of 3 blades produces the best performance compared to the other one. The magnitude of the rotor rotation, voltage, current, and electrical power generated is 846 rpm, 15.28 volts, 0.61 amperes, and 9.38 Watts, respectively.
PELATIHAN PENGGUNAAN DAN PEMELIHARAAN STANDING FRAME UNTUK TERAPIS YAYASAN PANGON UTOMO SURAKARTA Joharwan, Johanes Wawan; Ghoni, Ruzlaini; Raharjo, Emanuel Budi; Susanto, Husein Arif; Ramadhan, Ichsan; Rifai, Damhuji; Nugroho, Wasis
Abdi Masya Vol 4 No 2
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abma.v4i2.284

Abstract

Standing frame dibutuhkan oleh Yayasan Pangon Utomo untuk manajemen postural anak penyandang cerebral palsy. Hasil identifikasi masalah dan penelitian yang dilakukan penulis terkait dengan tema kegiatan ini menunjukkan bahwa dibutuhkan standing frame yang sesuai kebutuhan terapis untuk manajemen postural anak penyandang cerebral palsy dalam posisi berbaring, duduk dan berdiri. Standing frame dibuat adjustable menggunakan actuator linier electric dengan control, reclining jog dan connector. Tujuan program pengabdian kepada masyarakat ini adalah untuk meningkatkan pengetahuan terapis tentang standing frame meliputi sistem kelistrikan, reclining jog, actuator linier electric, control dan connector juga meningkatkan kemampuan terapis tentang penggunaan standing frame dalam posisi berbaring, duduk dan berdiri serta cara pemeliharaan standing frame yang benar. Metode yang digunakan adalah ceramah, tanya jawab, diskusi dan demonstrasi. Tahap pelatihan ada persiapan, pelaksanaan dan evaluasi. Hasil evaluasi pelatihan terjadi peningkatan 100% dari pre-test ke post-test yang menunjukkan bahwa pelatihan dapat meningkatkan pengetahuan terapis tentang standing frame serta meningkatkan kemampuan terapis dalam penggunaan dan pemeliharaan standing frame. Sehingga terjadi peningkatan pelayanan manajemen postural anak penyandang cerebral palsy di Yayasan Pangon Utomo.
STUDY OF INNER AND OUTER POCKET CHARACTERISTICS USING AREA ROUGHING METHOD Suryono, Edy; Kristiawan, Y. Yulianto; Raharjo, Emanuel Budi; Siburian, Jonas Andika; Fajar, Jodi Muhammad
Media Mesin: Majalah Teknik Mesin Vol. 25 No. 2 (2024)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v25i2.4628

Abstract

Pocket milling is one of the CNC milling processes. This research aims to analyze the characteristics of pocket milling using Area Roughing on surface roughness and machining time. The method applied is experimental research on the Area Roughing method for working on inner and outer pockets. Research variables include depth cut 0.5, 1, 1.5, and 2 mm, stepover percent 40, 50, and 60%. The test is in the form of surface roughness value, while the analysis of the machining process is the time during the milling process. The workpiece material is 2024 aluminum and a flat endmill tool with a diameter of 12 mm. The expected result is the parameter that has the most optimal value for the processing time and surface roughness value. So it can be a guide for milling processes, especially those that use Area Roughing. The machining results show that the faster machining time results from larger settings for depth cut and stepover percent. Average machining time increase of 28%. Meanwhile, the surface roughness value will increase as the depth cut and stepover settings increase, namely 17.65% for the outer pocket and 18.61% for the inner pocket. The surface roughness value of the ordering results ranges from 2.4-4.8 µm.
PENGARUH JUMLAH SUDU TERHADAP KINERJA TURBIN SAVONIUS TIPE DRAG PADA ALIRAN AIR DALAM PIPA Jamaldi, Agus; Purwono, Arif Hidayat; Andriyansyah, Deni; Raharjo, Emanuel Budi
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1338

Abstract

The concept of clean and renewable energy is currently a focus developed continuously. One of the abundant sources of clean and renewable energy is water. A water turbine is a mechanism to generate electrical energy by utilizing the water flow. Pico or nano hydro turbines produce electrical energy by taking advantage of the flow of water that rotates the shaft of the electric generator. This experimental study aims to analyze the effect of differences in the number of blades on a Horizontal axis drag-type Savonius turbine mounted of water flow in a vertical pipe. The variations of blades number used in the study are 3, 4, 6, 8, 10, and 12. The potential energy of the water is kept constant with a constant head of 2 meters. Four main parameters used as a benchmark for the performance of water turbines are rotor rotation, voltage, current and electrical power generated. The results showed that the rotor rotation, voltage, current, and generated electrical power decreased as the number of blades used increased. The water turbine of 3 blades produces the best performance compared to the other one. The magnitude of the rotor rotation, voltage, current, and electrical power generated is 846 rpm, 15.28 volts, 0.61 amperes, and 9.38 Watts, respectively.
Co-Authors Ario Sunar Baskoro Chamim, Moch. Deni Andriyansyah Fajar, Jodi Muhammad Ghoni, Ruzlaini Haikal Haikal ISNARNO ISNARNO Jamaldi, Agus Joharwan, Johanes Wawan Kristiawan, Y. Yulianto Nugroho, Wasis Purwono, Arif Hidayat ramadhan, Ichsan Rifai, Damhuji Siburian, Jonas Andika Suryono, Edy Susanto, Husein Arif