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Design of a horizontal axis wind turbine for electricity generation in low speed windy sites
journal contributionposted on 22.10.2018, 00:00 by Md Abul Kalam Azad, MM Kaysar
The paper presents the analysis of wind speed data for five windy sites and appropriate wind turbine design for electricity generation in Bangladesh. The data has been collected from the Wind Energy Resource Mapping (WERM) project for Bangladesh. The wind speed data has been measured at 20 m height from ground level. The data have been shorted in the appropriate frequency like monthly, hourly mean wind speed. The frequency distributions of wind speed, velocity duration curve and velocity profile have been drowning for getting more clear ideas about the selected site. Then Kuakata Sea belt has got a better windy site which has been selected for electricity generation and designs a horizontal axis wind turbine for this purpose. Wind turbine design algorithm has been followed to determine different design parameters like design lift coefficient, the angle of attack, design tip speed ratio, number of blades, design power coefficient and diameter of the blade for the wind turbine. Then linearized the blade chord and twist angle of the designed wind turbine. Analyses of solidity for a different number of blades have been carried out and select the local materials to manufacture of the designated wind turbine.