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All Journal Conference on Innovation and Application of Science and Technology (CIASTECH) Eksergi: Jurnal Teknik Energi
Fina Andika Frida Astuti
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Education Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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Journal : Eksergi: Jurnal Teknik Energi

 1 
ANALISIS KINERJA TURBIN ANGIN DARRIEUS-H NACA 3412 DENGAN VARIASI JUMLAH BILAH DAN DIAMETER SUMBU PUTAR Fina Andika Frida Astuti; Arif Rochman Fachrudin; Ahmad Hamim Su'udy
Eksergi Vol 17, No 1 (2021): JANUARI 2021
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1069.932 KB) | DOI: 10.32497/eksergi.v17i1.2179

Abstract

Wind energy is a renewable energy source that can be utilized by utilizing wind turbines which can convert wind energy into a form of mechanical energy and with a generator electrical energy can be generated. The purpose of this study was to analyze the performance of the Darrieus-H naca 3412 vertical axis wind turbine with variations in the number of blades, wind speed and diameter of the rotary axis. The method used in this research is to use an experimental method, namely by varying the diameter of the rotating axis, the number of blades and wind speed. The number of blades varied were 2, 3 and 4. The wind speeds that were varied were 3.2 m / s, 3.6 m / s, 4 m / s and 4.4 m / s. The diameter of the rotary axis used is 150 mm, 200 mm, 250 mm, 300mm and 350 mm. From the research, it is found that in all values of the diameter of the vertical axis wind turbine at a speed of 4 m / s, the more the number of blades will increase the output power of the wind turbine. The largest output power is on blade 4 with the largest diameter of the rotary axis, which is 3.52 WattsFor all wind speed values on a wind turbine with a number of blades of 4, the larger the diameter of the rotary axis will cause the greater the output power generated. The largest output power is 3.52, which is at the highest wind speed of 4 m / s, the largest diameter of the rotary axis, which is 350 mm. The greater the wind speed of all rotating axis diameters, the greater the output power produced, which is 3.5 W on the diameter of the rotary axis 4 with a wind speed of 4 m/s
ANALISIS DISTRIBUSI KOEFISIEN TEMPERATUR DENGAN VARIASI POROSITAS PADA BENDA SILINDER BERPORI DENGAN PANAS TETAP Ahmad Hamim Su’udy; Nur Fatowil Aulia; Yanuar Mahfudz Safarudin; Baktiyar Mei Hermawan; Fina Andika Frida Astuti
Eksergi Vol 16, No 2 (2020): MEI 2020
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.416 KB) | DOI: 10.32497/eksergi.v16i2.2208

Abstract

Metode mengenai perpindahan panas terus mengalami perkembangan, untuk meningkatkan perpindahan banyak cara untuk mempercepat laju perpindahan panas, salah satunya dengan menggunakan media berpori dengan berbagai material, sehingga peneliti tertarik untuk mendalami bagaimana proses distribusi temperature yang terjadi pada silinder berpori dengan variasi porositas dengan disimulasikan menggunakan program computer. Kemudian Tujuan dari penelitian ini ialah untuk memperoleh distribusi koefisien temperature yang sedang terjadi pada silinder berpori dengan variasi porositas 0,1; 0,2; 0,3. Dari percobahaan dan pembahasan maka dapat ditarik kesimpulan ialah porositas pada silinder menunjukkan semakin besar porositas mengakibatkan K efektif menjadi kecil, dan nilai h (koefisien perpindahan panas) juga kecil.
Co-Authors Ahmad Hamim Su’udy Arif Rochman Fachrudi Arif Rochman Fachrudin BAKTIYAR MEI HERMAWAN Nur Fatowil Aulia Yanuar Mahfudz Safarudin