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Parametric Study of Multiple Configurations of Pico Hydrokinetic Turbines using CFD

Balakrishnan, Yogaraja and At-Tasneem, Mohd Amin (2016) Parametric Study of Multiple Configurations of Pico Hydrokinetic Turbines using CFD. In: MATEC Web of Conferences: The 3rd International Conference on Mechanical Engineering Research (ICMER 2015), 18-19 August 2015 , Zenith Hotel, Kuantan, Pahang, Malaysia. pp. 1-8., 74 (00024). ISSN 2261-236X

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Abstract

This paper aims to study the river flow characteristics over pico hydrokinetic turbines with variation of arrangement using computational fluid dynamics (CFD) software. This study is required to obtain the optimum spacing and angle between the turbines which leads to higher turbine effective utilisation and performance in terms of power generated. In this study, a river model is created in CFD software to simulate the water flow over the turbines as they are placed in a river to obtain the water flow characteristic. Different types of array arrangements are simulated in the river model. Multiple turbines are used to accumulate more power. The turbine model which consists of eight turbines is arranged in series with different spacing, ranging from a size of diameter (1D) to four times diameter (4D) of turbine is simulated to identify the optimum spacing between the turbines. Then, the simulation is continued using a sufficient spacing of 0.5D with angles ranging of 10° to 60° from datum of original position to minimise the disruption of the aquatic environment. The velocity profiles of each turbine are obtained and analysed. The 4D spacing and 40° angle displayed higher average velocities compared to other arrangements. Thus, from this study, the 4D and 40° are deduced as the optimum spacing and angle, respectively.

Item Type: Conference or Workshop Item (Speech)
Uncontrolled Keywords: Computational fluid dynamics (CFD); pico hydrokinetic turbines
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 10 Apr 2017 01:33
Last Modified: 10 Apr 2017 01:33
URI: http://umpir.ump.edu.my/id/eprint/14675
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