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Journal : Foristek

PERANCANGAN SINGLE AXIS TRACKING SYSTEM Arifin, Yusnaini; Magga, Ramang; Hatib, Rustan
FORISTEK : Forum Teknik Elektro dan Teknologi Informasi Vol 3, No 2 (2013)
Publisher : FORISTEK : Forum Teknik Elektro dan Teknologi Informasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.263 KB)

Abstract

The aim of this research is to track photovoltaic panel following sun orientation in order to obtain maximum output of the panel. This research has been conducted in mechanical and electrical laboratory. The tracking system has used dc motor that utilizes AT Mega 8535 microcontroller to control the movement of the tracking system. The movement is 15o every hour, from east to west (8 pm – 4 am). Keywords: photovoltaic, single axis, tracking system.
DISTRIBUSI TEKANAN PADA AIRFOIL NACA 23012 DENGAN PENAMBAHAN VORTEX GENERATOR Leandis Leandis; Khairil Anwar; Rustan Hatib
Foristek Vol. 12 No. 1 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v12i1.144

Abstract

This study aims to determine the effect of the use of a vortex generator on the pressure distribution of the NACA 23012 airfoil. The research method is experimental testing of the NACA 23012 airfoil model with the addition of a vortex generator in the wind tunnel with variations in air velocity 20.96 m/s2, 28.48 m/s2, and 33.90 m/s2, as well as with the angle of attack. The results showed that the airfoil with a vortex generator had a lower pressure coefficient (Cp) than without using a vortex generator.
KAJI EKSPERIMENTAL KINERJA TURBIN ULIR ARCHIMEDES BERDASARKAN SUDUT KEMIRINGAN POROS TURBIN Jayanto, Septian Dwi; Hatib, Rustan; Muchsin, Muchsin
Foristek Vol. 15 No. 2 (2025): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v15i2.843

Abstract

This study aims to evaluate the effect of variations in the shaft inclination angle, namely 22°, 24°, 26°, 28°, and 30° on the performance of the Archimedes screw turbine with the experimental method carried out using a half-scale turbine model with a constant discharge of 0.0014 m³/s and an increase in torque (1-4 Nm). The parameters analyzed include rotational speed (RPM), output power, and efficiency at each torque level (1–4 Nm). The results show that the maximum efficiency of 61.81% is achieved at an angle of 22° with a torque of 3 Nm. Although the 30° angle produces higher output power, its efficiency is lower due to the larger head value (0.58 m compared to 0.435 m at 22°), which increases input power but is not offset by a comparable increase in output. In addition, at steeper angles, there is an increase in leakage and overflow due to less-than-optimal screw filling. This study concludes that the combination of 22° angle and 3 Nm torque is the most efficient configuration for a small-scale screw turbine system. This study can serve as a reference for designing a micro-hydro power generation system based on a screw turbine.