Optimalisasi fungsi kincir angin kawasan tambak garam Kabupaten Rembang Jawa Tengah Indonesia

SUHARTONO, Eko, Dr. Ing. Ir. Agus Maryono

2009 | Tesis | S2 Magister Sistem Teknik

Rasa kawatir kekurangan dan kehabisan bahan bakar fosil sebagai penggerakutama mesin listrik memotivasi pengusahaan pemanfaatan energi terbarukan berupa potensi angin yang melimpah dikawasan tinggal penulis, menjadikan kincir angin sebagai pilihan penggerak generator penghasil listrik. Kombinasi “Menyempit-60” dipilih dari sembilan kombinasi “bentuk-Sudut” karena dalam pemodelan menunjukkan kinerja baik berupa putaran paling tinggi dan torsi cukup besar, sesuai untuk penggerak kincir angin penghasil listrik Wind Turbine merupakan prototype hasil pemodelan mempunyai cut-in-speed sebesar 2,4 m/s dengan rata-rata putaran 70 rpm. Efisiensi 0,5 atau 89% dibanding efisiensi kincir angin ideal pada harga tip-speed-ratio sebesar 6,2. Wind Turbine adalah kincir angin terdiri 6 blade berdiameter 4 m dan berbahan blade kayu Kalimantan/Kamper dirancang dapat beroperasi pada angin berkecepatan mulai 2,4 sampai 15 m/s dengan tetap mengikuti arah datang angin. Wind Turbine dirancang mengalami tegangan tarik maksimal pada kecepatan angin 15 m/s dengan harga tegangan tarik komponen sebagai berikut: Tegangan Tarik pangkal blade sebesar 138,5 kg/cm2 (12,5%), Tegangan Tarik pangkal blade akibat gaya sentrifugal sebesar 357 kg/cm2 (55%), Tegangan Tarik pangkal tiang sebesar 618 kg/cm2 (56%), Tegangan Tarik pangkal sendi putar sebesar 1060 kg/cm2 (19%), ukuran poros 2 kali diameter rancangan. Wind Turbine sesuai dioperasikan pada angin berkecepatan rendah sampai tinggi sekitar 15 m/s seperti kondisi pantai kabupaten Rembang yang berkadar garam tinggi, lembab dan berada dalam paparan sinar matahari penuh dengan terlebih dahulu menghilangkan slep pada sistem transmisinya.

The anxious of lack and less fossil fuel as the main activator of electricity machine motivate the effort of using reform energy in the form of wind potential which greatly overflow in the writers living area, make windmill become the choice of generator activator of electricity producer. The combination of “ 60-Constrict” was chosen by the nine combination of “ Angle- Shape” because in the model showed the fine work that was the highest rotation and the big torsion which was suitable for the windmill activator of electricity producer. Wind Turbine was the prototype model result having cut-in-speed 2,4 m/s with rotation average 70 rpm. The efficiency 0,5 or 89% was compared to windmill ideal efficiency on the value of tip-speed-ratio 6,2. Wind Turbine was the windmill that consist of 6 blade, the diameter was 4 m and the material was wooden blade that was designed to be operated in wind speed 2,4 m/s until 15 m/s that follow steady with the wind coming direction. Wind Turbine was designed undergo maximum pulling of tension in wind speed 15 m/s with the value pulling of tension. Component those are: pulling of tension blade base 138,5 kg/cm2 or 12,5%, Pulling of tension because of centrifugal force 357 kg/cm2 or 55%, pulling of tension rotation joint 1060 kg/cm2 or 19%, axis measure twos times diameter of design. Wind Turbine was suitable to be operated in wind on low speed until high speed about 15 m/s such as the beach condition of Rembang regency, which hard high level of salinity, humid and on the area with full of sunrise by making disappear the transmission system earlier.

Kata Kunci : Potensi angin,Teknologi biner,Pembangkit listrik