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Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENGINEERING   JANUARY 2010 , Volume 23 , Number 1 (TRANSACTIONS A: BASICS); Page(s) 79 To 88.
 
Paper: 

COMPUTER SIMULATION STUDIES ON THE EFFECT OVERLAP RATIO FOR SAVONIUS TYPE VERTICAL AXIS MARINE CURRENT TURBINE

 
 
Author(s):  BIN YAAKOB O.*, TAWI K.B., SUPRAYOGI SUNANTO D.T.
 
* DEPARTMENT OF MARINE TECHNOLOGY, UNIVERSITI TEKNOLOGI MALAYSIA, POSTAL CODE 81310, UTM SKUDAI, JOHOR, MALAYSIA
 
Abstract: 

The Ocean has provided a new avenue in the quest for renewable energy. One potential source of energy is marine current, which is harnessed using either vertical or horizontal axis turbines. This paper describes a particular type of vertical axis turbine which is suitable for low current velocity applications. The simulation of Savonius-type turbine, which hitherto has never been proposed for marine current energy application, is presented in this paper. A 3D computational model was built and analyzed using a Computational Fluid Dynamic analysis using proprietary software. The overlap ratio is identified as one of the important factors in Savonius turbine performance. These paperprovides results of the investigation for a range of overlap ratios between 0.1 and 0.6 and it was found that the maximum torque can be obtained at overlap ratio of 0.21.

 
Keyword(s): OVERLAP RATIO, SAVONIUS, SIMULATION, COMPUTATIONAL FLUIDS DYNAMIC (CFD)
 
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