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A Study on Power Performance of a 1kW Class Vane Tidal Turbine
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Type
Academic journal
Author
Changjo Yang (Mokpo National Maritime University) Manh Hung Nguyen (Mokpo National Maritime University) Anh Dung Hoang (Mokpo National Maritime University)
Journal
The Korean Society of Marine Engineering Journal of Advanced Marine Engineering and Technology Vol.39 No.2 KCI Accredited Journals
Published
2015.2
Pages
143 - 151 (9page)

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A Study on Power Performance of a 1kW Class Vane Tidal Turbine
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Abstract· Keywords

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Recently, tidal current energy conversion is a promising way to harness the power of tides in order to meet the growing demands of energy utilization. A new concept of tidal current energy conversion device, named Vane Tidal Turbine (VTT), is introduced in this study. VTT has several special features that are potentially more advantageous than the conventional tidal turbines, such as propeller type tidal turbines. The purpose of this study on VTT is to analyze the possibility of extracting the hydrokinetic energy of tidal current and converting it into electricity, and evaluate the performance of turbines for various numbers of blades (six, eight and twelve) using Computational Fluid Dynamics (CFD). At various tip-speed ratios (TSR), the six-bladed turbine obtains the highest power and torque coefficients, power efficiency is up to 28% at TSR = 1.89. Otherwise, the twelve blade design captures the smallest portion of available tidal current energy at all TSRs. However, by adding more blades, torque extracted from the rotor shaft of twelve-bladed turbine is more uniform due to the less interrupted generation of force for a period of time (one revolution).
#Vane tidal turbine #Computational fluid dynamics #Power coefficient #Tidal current energy #Torque coefficient

Contents

Abstract
1. Introduction
2. Vane Tidal Turbine
3. Theory and Numerical Method
4. Results and Discussions
5. Conclusions
References

References (16)

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1. [학술지(정기간행물)] - T. Setoguchi / 1993 / Impulse turbine with self-pitch controlled guide vanes for wave power conversion : Performance of monovane type / International Journal Offshore Polar Engineering 3 (1) : 73 ~ 78 google schola 2. [학술지(정기간행물)] - T. Setoguchi / 2001 / A review of impulse turbines for wave energy conversion / Journal of Renewable Energy 23 (2) : 261 ~ 292 google schola 3. [학술지(정기간행물)] - R. E. Vijayakrishna / 2004 / Experimental investigation on the dynamic response of a moored wave energy device under regular sea waves / Journal of Ocean Engineering 31 (5-6) : 725 ~ 743 google schola 4. [학술지(정기간행물)] - U. A. Korde / 1991 / Development of a reactive control apparatus for a fixed two-dimensional oscillating water column wave energy device / Journal of Ocean Engineering 18 (5) : 465 ~ 483 google schola 5. [학술지(정기간행물)] - V. H. Osawa / 2002 / The offshore floating type wave power device “Mighty Whale” open sea tests – Performance of the prototype / Journal of International Offshore and Polar Engineering 12 (12) : 595 ~ 600 google schola

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