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<< JRScience Home     Volume 15 No.4    December, 2004    << Back to Volume Home

FREQUENCY DISTRIBUTION OF WIND SPEED OF QUETTA, PAKISTAN

 Syed Zafar Ilyas1, S. M. Nasir1 and Taleem Badshah1

1Group of Renewable Energy, Department of Physics, University of Balochistan,Quetta,Pakistan, 2Department of Geography, University of Balochistan, Quetta, Pakistan.

Email: szilyas@hotmail.com

Abstract: Wind data of twelve years have been analyzed for Quetta, Pakistan to produce the probability distributions. Data for Quetta station is recorded on hourly basis and converted into m s-1. Distributions are considered on monthly and annual basis: final results are compared and show 70-80% probability of hourly wind speed greater than 2.0 m s-1.  The probability for occurrence of wind speed at any location in Quetta will help designing the diverse engineering parameters for wind turbines like Darrius or Savonius such as angle of attack on rotors, suitable gear system to make wind machines work even in clean spells, generators, length of rotors; cut-in, cut-out and rated wind speeds of rotors.

 

Keywords: Angle of attack, diverse engineering parameters, wind speed, turbine