Studi Eksperimental Vertical Axis Wind Turbine Tipe Savonius dengan Variasi Jumlah Fin pada Sudu
Submission Date: 2013-08-15 10:35:55
Accepted Date: 2013-08-30 14:51:46
Abstract
Salah satu teknologi sistem konversi energi angin yang ada adalah turbin Savonius yang merupakan salah satu jenis Vertical Axis Wind Turbine ( VAWT ). Turbin Savonius memiliki karakteristik strating torsi yang baik, mudah dalam pembutannya dan dapat menerima angin dari segala arah namun kekurangan yang dimiliki adalah coefficient of power (Cp) turbin yang rendah. Untuk itu banyak dilakukan penelitian untuk meningkatkan efisiensi dari turbin Savonius. Salah satunya adalah penambahan end plate yang mampu meningkatkan perbedaan tekanan dari kedua sisi sudu sehingga memperbesar drag positif turbin. Untuk itu pada penelitian ini dilakukan variasi jumlah penambahan fin pada sudu. Variasi jumlah fin yang dilakukan adalah 1,2,4 dan 7 fin serta pengujian dengan menggunakan generator dan tanpa generator. Dari hasil pengujian, variasi fin yang dapat meningkatkan Cp turbin Savonius adalah variasi 1 fin jika dibandingkan turbin standarnya dengan nilai Cp sebesar 0,11. SKEA turbin Savonius menggunakan generator 12 V;400W dapat menghasilkan daya maksimal 5,71 Watt pada putaran 134 rpm
Keywords
Fin; coeficient of perfomance; savonius; turbin
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