Effects of meteorological variables on exergetic efficiency of wind turbine power plants

Omer Baskut, Onder Ozgener and Leyla Ozgener

Renewable and Sustainable Energy Reviews, 2010, vol. 14, issue 9, 3237-3241

Abstract: This present paper deals with exergy efficiency results of the Wind Turbine Power Plants (WTPPs). Effects of meteorological variables such as air density, pressure difference between state points, humidity, and ambient temperature on exergy efficiency are discussed in a satisfactory way. Some key parameters are given monthly for the three turbines. Exergy efficiency differs from 0.23 to 0.27 while temperature is changing from 268.15Â K to 308.15Â K with air density 1.368-1.146Â (kg/m3). While pressure difference ([Delta]P) between inlet and outlet of the turbine differs from 100 to 1100Â (Pa), exergy efficiency decreases fairly for different wind speeds. While specific humidity is changing from 0.001 to 0.015 (kgwater/kgdry air), exergy efficiency decreases gently. Generally these meteorological variables are neglected while planning WTPPs, but this neglect can cause important errors in calculations and energy plans. Obtained results indicate that while planning WTPPs meteorological variables must be taken into account.

Keywords: Exergy; efficiency; Meteorological; variables; Wind; energy; Renewable; energy (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (18)

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