Computational Analysis of the Performance of a Vertical Axis Turbine in a Water Pipe

Honggu Yeo, Woochan Seok, Soyong Shin, Young Cheol Huh, Byung Chang Jung, Cheol-Soo Myung and Shin Hyung Rhee
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Honggu Yeo: Department of Naval Architecture and Ocean Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
Woochan Seok: Department of Naval Architecture and Ocean Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
Soyong Shin: Department of Naval Architecture and Ocean Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
Young Cheol Huh: Department of System Dynamics, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
Byung Chang Jung: Department of System Dynamics, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
Cheol-Soo Myung: Geo Energy Ltd., Seoul 08826, Korea
Shin Hyung Rhee: Department of Naval Architecture and Ocean Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea

Energies, 2019, vol. 12, issue 20, 1-15

Abstract: In this study, a computational analysis was performed for a vertical-axis turbine which was installed in a water pipe to collect unused energy from the flow inside the pipe. The optimized operating conditions of the turbine were identified by comparing the energy-collecting performance obtained at different tip-speed ratios (TSRs). The turbine achieved the maximum efficiency of 22% at a TSR of 2.4 and collected 33 kW. Additional analyses were conducted to verify the effects of tip clearance, which is the distance between the turbine blades and the pipe wall, which showed that a higher efficiency was obtained with a smaller tip clearance. We also verified the effects of the turbine’s operating conditions and tip clearance on the flow field around the blades and wake of the turbine.

Keywords: vertical axis turbine; tip clearance; renewable energy; computational fluid dynamics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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