Wind energy resource analysis at Pakshy , Chapai NawabGanj & Naogaon

Abstract

A study and analysis has been carried out to identify sites with a high wind potential to apply wind program suitable at the sites. Here the investigation is carried out mainly at Naogaon, Pakshy, Chapai Nawabganj based on data provided by LGEDi~ year 2003 on hour based data and From Bangladesh Meteorological Department (BMD) from year 2003 to 2008 on 3 hours based data at Rajshahi and Ishordi.The data provided were at 30 meter height from LGEDand 10 meter height from BMD. The data analysis were done between month April to September as study showed wind potential is higher between these months. Monthly based Wei bull Shape factor and scale factor were determined and reflected in velocity, energy and frequency Histograms, Velocity duration curves, Comparison between observed and calculated Weibull Cumulative function and Probability function graphs. For Validation the data provided by LGEDand BMD were compared Significant variation was noticed. As there was Height difference and position difference between them Height Factor was determined. The data studied showed the higher wind potential at mid day and late night and between months June to September flowing close to 4 to 6 m/s range. The velocity range was not satisfactory for wind power generation well below it demands and also because high velocity range of wind potential showed very little duration so mainly wind pumping system is suggested in the Investigated regions of Bangladesh.