Pengaruh Besar Sudut Butterfly Guide terhadap Unjuk Kerja Kincir Air
Keywords:Waterwheel, Flowguide, Undershot, Efficiency
AbstractIn this work, the effects of geometry transition of the upstream channel on the performance of an undershot water wheel were investigated. For that purpose, we carried out experiments using an undershot water wheel model with a diameter ofÂ Ã˜=480 mm, the width of l=100 mm, the number of blades of 12, and the radius of blade curvature of R=170 mm, which was installed on a flow channel with the width of 250 mm. The upstream channel was modified by installing flow guides with different entry angles (Î±=30o, Î±=45o, and Î±=60o), and their effects were investigated by measuring the mechanical power of the water wheel and capturing the flow pattern at the upstream of the water wheel, under the flow rates of Q=10 l/s and Q=14 l/s. The experimental results show that the higher the flow rate, the stronger the effects of the flow guides on the performance of the water wheel. Under the considered experimental conditions, the highest performance was achieved for the flow guide with entry angles of Î±=30o at the flow rate of Q=14 l/s, for which the water wheel produces mechanical power of 22 Watt with an efficiency of 40,37%. It can be observed that the flow guide with the gradual transition (lower entry angle) introduces a more uniform flow pattern that results in a higher water wheel performance, while the flow guide with the sharp transition (higher entry angle) introduces the crossing flow pattern that reduces the performance of the water wheel.
K. E. DIREKTORAT JENDERAL ENERGI BARU, TERBARUKAN, â€œLaporan Kinerja Tahun 2017,â€ Kementeri. Energi dan Sumber daya Mineral., no. 3, pp. 1â€“50, 2018.
L. SULE and P. T. D. ROMPAS, â€œPerformance of Savonius Blade Waterwheel with Variation of Blade Number,â€ In: IOP Conference Series:Material Science Engineering., vol. 306, no. 1, 2018
WARJITO, D. ADANTA, BUDIARSO, and A. P. PRAKOSO, â€œThe effect of bucketnumber on breastshot waterwheel performance,â€ In: IOP Conference Series: Earth Environment Science., vol. 105, no. 1, 2018
M. HIDAYAT and R. WULANDARI, â€œUnjuk Kerja Turbin Air Kaki Angsa Next-G dengan Variasi Lebar Sudu dan Jumlah Kaki Sudu Menggunakan Pendekatan Komputasional,â€ Jurnal Rekayasa Mesin, vol. 9, no. 2, pp. 99â€“102, 2018
M. ZHAO, Y. ZHENG, C. YANG, Y. ZHANG, and Q. TANG, â€œPerformance investigation of the immersed depth effects on a water wheel using experimental and numerical analyses,â€ Journal Water (Switzerland), vol. 12, no. 4, 2020
HELMIZAR and G. MULLER, â€œThe effect of using upper shroud on the performance of a breashoot water wheel,â€ In: IOP Conference Series: Journal Physics., vol. 1175, no. 1, 2019
MATIAS, A. SUNARSO, and B. P. LAPANPORO, â€œStudi Unjuk Kerja Pembangkit Listrik Tenaga Arus Sungai di Sungai Buduk Dusun Nibung Desa Sahan Kecamatan Seluas Kabupaten Bengkayang,â€ Positron, vol. 6, no. 1, pp. 29â€“34, 2016
BUDIARSO, HELMIZAR, WARJITO, A. NURAMAL, W. RAMADHANU, and D. ADANTA, â€œPerformance of breastshot waterwheel in run of river conditions,â€ In: AIP Conference Proceedings., vol. 2227, no. May, 2020
E. QUARANTA and R. REVELLI, â€œPerformance characteristics, power losses and mechanical power estimation for a breastshot water wheel,â€ Energy, vol. 87, pp. 315â€“325, 2015
C. VIDALI, S. FONTAN, E. QUARANTA, P. CAVAGNERO, and R. REVELLI, â€œExperimental and dimensional analysis of a breastshot water wheel,â€ J. Hydraul. Res., vol. 54, no. 4, pp. 473â€“479, 2016
E. QUARANTA and G. MÃœLLER, â€œSagebien and Zuppinger water wheels for very low head hydropower applications,â€ J. Hydraul. Res., vol. 56, no. 4, pp. 526â€“536, 2018
A. A. A. SURYAWAN and I. N. SUWEDEN, â€œKarakterisasi Kincir Air Sudu Melengkung pada Variasi Sudut Air Masuk (Î¸1) dan Sudut Kelengkungan Sudu (Î¸),â€ J. Energi Dan Manufaktur, vol. 11, no. 1, p. 30, 2018
D. ADANTA, BUDIARSO, and WARJITO, â€œThe effect of channel slope angle on breastshot waterwheel turbine performance by numerical method,â€ Energy Reports, vol. 6, pp. 606â€“610, 2020
FITRIANSYAH, E., WAHYUDI,S., WINARTO. (2020). Pengaruh Kedalaman Sudu Mangkok Terhadap Unjuk Kerja Turbin Kinentik. Jurnal Rekayasa Mesin, 5. 11, N3, pp.323-329.
Y. NISHI, T. INAGAKI, Y. LI, and K. HATANO, â€œStudy on an Undershot Cross-Flow Water Turbine with Straight Blades,â€ Int. J. Rotating Mach., vol. 2015, 2015
SYAFRIYUDIN, B. FAJAR, S. H. WINOTO, and M. FACTA, â€œEarly Analysis of Jumping Water Effect on Breastshot Waterwheel for Microhydro Power Plant,â€ J. Phys. Conf. Ser., vol. 953, no. 1, pp. 0â€“7, 2018
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