?url_ver=Z39.88-2004&rft_id=1615021031&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+VARIASI+JUMLAH+SUDU+DAN+TWIST+ANGLE+TERHADAP+PERFORMA+TURBIN+HELIKS+DENGAN+AIRFOIL+NACA+0030+MENGGUNAKAN+METODE+COMPUTATIONAL+FLUID+DYNAMIC+(CFD)&rft.creator=FATHUR+RIFAI%2C+1615021031&rft.subject=600+Teknologi+(ilmu+terapan)&rft.description=Hydrokinetic+energy+is+one+of+the+potential+renewable+energy+that+is+easy+to+be+found%2C+the+examples+include+irrigation+canals%2C+streams+and+sea+waves.+In+addition+to+being+environmentally+friendly%2C+water+current+energy+also+has+a+fairly+large+kinetic+energy+intensity.+Utilization+of+the+potential+of+water+currents+to+generate+electricity+can+be+done+using+a+helical+turbine.+The+helical+turbine+is+a+modified+form+of+the+Darrieus+turbine%2C+to+overcome+the+weakness+of+the+Darrieus+turbine%2C+the+blades+of+the+helical+turbine+are+made+curved+with+a+certain+angle+of+inclination.+This+study+aims+to+determine+the+performance+of+the+helical+turbine+using+the+CFD+method.+This+research+was+conducted+by+simulating+the+addition+of+the+blades+and+twist+angle+on+a+helical+turbine.+The+variations+used+for+the+sum+of+the+blades+are+2%2C+3+and+4+while+the+twist+angle+variations+are+60%C2%B0%2C+90%C2%B0+and+120.+The+simulation+results+shows+that+the+addition+of+the+blades+and+twist+angle+has+a+positive+effect+on+the+performance+of+the+helical+turbine%2C+an+increase+in+the+torque+value+is+obtained.+The+addition+of+the+blades+and+the+twist+angle+will+result+in+a+higher+mass%2Fload+of+the+turbine+when+rotating+or+what+is+called+the+moment+of+inertia%2C+resulting+in+greater+force+and+increased+torque.+Simulation+results+using+variation+of+the+blades+obtained+the+best+performance+when+the+sum+of+blades+is+4+where+the+resulting+Cp+is+0.287.+For+twist+angle+variations+tests%2C+the+best+performance+was+obtained+at+an+angle+of+120%C2%B0+with+the+resulting+Cp+value+of+0.312.+Keywords%3A+Helical+turbine%2C+CFD%2C+Number+of+blades%2C+Twist+angle%0D%0A%0D%0AEnergi+arus+air+(Hydrokinetic+energy)+merupakan+salah+satu+potensi+energi+terbarukan+yang+mudah+ditemukan+seperti+saluran+irigasi%2C+aliran+sungai+dan+gelombang+laut.+Selain+ramah+lingkungan+energi+arus+air+juga+memiliki+intensitas+energi+kinetik+yang+cukup+besar.+Pemanfaatan+potensi+arus+air+untuk+menghasilkan+listrik+dapat+dilakukan+menggunakan+turbin+heliks.+Turbin+heliks+merupakan+bentuk+modifikasi+dari+turbin+darrieus%2C+untuk+mengatasi+kelemahan+turbin+darrieus+sudu+pada+turbin+heliks+dibuat+berbentuk+melengkung+dengan+kemiringan+sudut+tertentu.+Penelitian+ini+bertujuan+untuk+mengetahui+unjuk+kerja+turbin+heliks+menggunakan+metode+CFD.+Penelitian+ini+dilakukan+dengan+melakukan+simulasi+terhadap+penambahan+jumlah+sudu+dan+twist+angle+pada+turbin+heliks.+Variasi+jumlah+sudu+adalah+2%2C+3+dan+4+sudu+sedangkan+variasi+twist+angle+sebesar+60%C2%B0%2C+90%C2%B0+dan+120%C2%B0.+Hasil+simulasi+menunjukkan+bahwa+penambahan+jumlah+sudu+dan+twist+angle+berpengaruh+positif+terhadap+performa+turbin+heliks%2C+terjadi+peningkatan+nilai+torsi+yang+diperoleh.+Penambahan+jumlah+sudu+dan+twist+angle+akan+mengakibatkan+massa%2Fbeban+turbin+saat+berputar+semakin+tinggi+atau+yang+disebut+dengan+momen+inersia+sehingga+menghasilkan+gaya+lebih+besar+dan+torsi+meningkat.+Hasil+simulasi+dengan+menggunakan+variasi+jumlah+sudu+diperoleh+performa+terbaik+pada+jumlah+sudu+4+dimana+Cp+yang+dihasilkan+sebesar+0%2C287.+Pada+pengujian+dengan+variasi+twist+angle+didapat+performa+terbaik+pada+sudut+120%C2%B0+dengan+nilai+Cp+yang+dihasilkan+sebesar+0%2C312.+Kata+kunci%3A+Turbin+heliks%2C+CFD%2C+Jumlah+sudu%2C+Twist+angle&rft.publisher=FAKULTAS+TEKNIK&rft.date=2022-02-06&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58313%2F1%2F1.%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58313%2F2%2F2.%2520SKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58313%2F3%2F3.%2520SKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++FATHUR+RIFAI%2C+1615021031++(2022)+PENGARUH+VARIASI+JUMLAH+SUDU+DAN+TWIST+ANGLE+TERHADAP+PERFORMA+TURBIN+HELIKS+DENGAN+AIRFOIL+NACA+0030+MENGGUNAKAN+METODE+COMPUTATIONAL+FLUID+DYNAMIC+(CFD).++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F58313%2F