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http://dx.doi.org/10.7837/kosomes.2020.26.5.561

Performance Analysis of a Portable Horizontal Axis Hydro Turbine by Computational Fluid Dynamics  

Park, Ji-Hoon (Wind.Oecen Power R&D Department, Green Energy Institute)
Baek, Sang-Hwa (EK corporation)
Choi, Hyen-Jun (Wind.Oecen Power R&D Department, Green Energy Institute)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.26, no.5, 2020 , pp. 561-568 More about this Journal
Abstract
A performance analysis was conducted according to changes in inflow velocity and the tip speed ratio of a portable horizontal-axis hydro turbine that can be used for marine leisure sports and outdoor activities by using the commercial computational fluid dynamics software ANSYS CFX. By using the analysis result and flow field analysis, the design was reviewed and the performance of the device was confirmed. In addition, data necessary to improve the performance of the hydro turbine were acquired by performing an additional performance analysis according to the variable blade pitch angle. The results among the numerical analysis cases show that the highest performance at all inflow velocities and blade pitch angles if achieved at a tip speed ratio of 4. The output power was found to be 30 W even under some conditions below the design flow rate. Among the numerical analysis cases, the highest output power (~ 85 W) and power coefficient (~ 0.30) were observed at an inlet flow rate of 1.5 m/s, a blade pitch angle of 3°, and a tip speed ratio of 4.
Keywords
Small hydropower; Running water type; Horizontal axial hydro turbine; Portable; Performance analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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