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Low Frequency Noise of Gas Turbines
Abstract
With many electric utility gas turbine installations, the most difficult noise problem has been the control of low‐frequency noise radiated to the community from the turbine exhaust. In this paper a number of case histories are discussed leading to some suggestions for noise control design goals for the 31.5‐Hz octave band. Some material will be presented on noise spectra,noise control measures, and noise specifications for gas turbines pertinent to low frequencies.
... Nowadays, there is a great concern about noise in city-based and industrial areas [4][5][6][7][8][9][10][11][12][13][14][15][16][17] The noise generated from operating wind and gas turbines [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] is classifiable as an aerodynamic or a mechanical sound as a whole. Aerodynamic sound is generated from the blade passing through the air, and mechanical sound is emitted by some equipment in the nacelle [36]. ...
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