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How to calculate the noise reduce in silencer
Dear All, When the duct lined with the muffler w can apply the formula NR = 1.05*alfa^1.4*L*P/S Where; alfa = Sabin absorbtion coefficient L = Lenght of duct (m) P = Perimeter of duct lined (m) S = Cross section area of duct (m2) If the silencer...- Silenceman
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- Forum: Mechanical Acoustics/Vibration engineering
