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All Journal Majority Science Journal JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Gunadi, Sunartoto
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Humanities Astronomy Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Law, Crime, Criminology & Criminal Justice

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AN INVESTIGATION OF THE EFFECTS OF WIND VELOCITY ON THE PERFORMANCE OF TURBINES AND GENERATORS Lestari, Kiki Rezki; Alviana, Izkia Dwi; Gunadi, Sunartoto; Wati, Erna Kusuma; Santoso, Hari Hadi
MSJ : Majority Science Journal Vol. 2 No. 1 (2024): MSJ-February
Publisher : PT. Hafasy Dwi Nawasena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61942/msj.v2i1.77

Abstract

Variations in wind speed at 4,6 and 8 m altitudes were analyzed using a 24-hour dataset. The greatest recorded wind velocity was 3.3 m/s at a height of 8 meters, and the lowest was around 2.4 m/s at a height of 4 meters. The investigation also identified discrepancies in velocity between the generator and turbine while they were operating with and without a load. The turbine's speed increased when there was no weight present. The peak wind velocity reached 3.9 meters per second, accompanied by a similar variation of 5.4 rotations per minute. The average discrepancy in rotational velocity between the turbine and generator during periods of low wind was 3.74 RPM. This discovery establishes a fundamental basis for comprehending the movement of wind and enabling future in-depth explorations in the field of atmospheric sciences. The generator's performance is assessed by the measurement of current and voltage, which serves to highlight its versatility and effectiveness. The correlation between wind velocity and generator rotational speed is crucial for energy conversion, since the turbine's velocity needs to be adjusted to match the heightened load, affecting the generator's speed.
Pembuatan Sistem Perancang Peredam Kebisingan Prasetya, Rahmat Bagus; Gunadi, Sunartoto; Wati, Erna Kusuma
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol. 4 No. 2 (2020): JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) - November 2020
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v4i2.728

Abstract

One of the problems experienced by the community, whether at home or at work, was the disruption in the sense of concentration caused by noise. This study aims to measure noise as well as provide materials to reduce noise in the area. The time for data collection was one day, carried out for 4 samples of data collection based on a reference from the Ministry of Environment, no: Kep-48 / MENLH / 11/1996. The measurement method also using SNI standard number 7231 in 2009. Then based on the noise value displayed on the instrument, material recommendations will be given based on the value of Noise Reduction Coefficient (NRC), Sound Transmission Coefficient (STC) and Loss Factor. The results of noise measurements at the AT-Taqwa Mosque are 77.1 dB and the recommended material recommended by the tool is Acourete Perfowood - Acoustic Panel 881 with NRC 0.375. While the measurement at the Musholla at Pasar Minggu station is 76.8 dB and the recommended material recommended by the tool is Accourete Fiber 300 with an NRC of 0.44.
Co-Authors Alviana, Izkia Dwi Kiki Rezki Lestari, Kiki Rezki Prasetya, Rahmat Bagus Santoso, Hari Hadi