Karakteristik Aliran Turbin Hidrokinetik Savonius Susunan Inward dan Outward Overlap dengan Dua Semicircular Blade-Flat Leading Edge

https://doi.org/10.22146/jmdt.74371

Khoiri Rozi(1*), Berkah Fajar Tamtomo Kiono(2), Ismoyo Haryanto(3), Adam Rahmansyah(4)

(1) Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
(2) Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
(3) Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
(4) Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
(*) Corresponding Author

Abstract


Penelitian ini dibuat untuk mempelajari medan aliran melalui turbin hidrokinetik Savonius dengan flat-leading edge. Pengaruh ketebalan blade, overlap, dan kecepatan freestream disimulasikan menggunakan ANSYS FLUENT dengan model k-w SST. Hasil penelitian menunjukkan bahwa struktur aliran berubah seiring dengan meningkatnya putaran turbin dengan kompleksitas aliran terbentuk pada sudut putar yang lebih besar. Posisi inward dan outward overlap menciptakan pola aliran lebih kompleks. Koefisien torsi dan daya untuk blade tipis lebih tinggi daripada blade yang lebih tebal dan nilainya meningkat dengan peningkatan kecepatan aliran bebas.


Keywords


overlap, power coefficient, torque coefficient, Savonius hydrokinetic turbine.

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DOI: https://doi.org/10.22146/jmdt.74371

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