Silencer Program p Directions Fill in all red highlighted fields and press submit to see all values and a graph. Turbine Gas Flow (pph) Gas Temperature (°F) Site Altitude AMSL (ft) Calculated Barometric pressure at altitude (in Hg) Actually Gas Density (pcf) Gas Flow (acfm) For a given stack Width, modify the number of baffles and free area to target baffles 12 inches to 16 inches wide. Maintain gap velocities to under 10,000 FPM for 900 deg F and above exhaust gases Parallel Baffle Inserts Stack Shape Round Rectangular Stack Diameter (in) Silencer Height (in) Silencer Width (in) Number of Modules Number of Baffles Free Area % Active Length (in) Calculated Silencer Information Full Half Thickness of Liner (in) Width of Air Channel (in) Baffle Width (in) Gap (in) Baffle Thickness (in) Module Width (in) Area of Square (sq ft) Area of Circle (sq ft) Ratio Module Size (in) Face Velocity (FPM/FPS) Gap Velocity (FPM/FPS) Gap Velocity Pressure (wc) Silencer Width is key variable in determining acoustic performance. Pressure Drop Nose In Perforated Baffle Section Nose Out Tail Out Total Predicted PD Relatively ideal pressure drops. Based on developed flow upstream of baffles. Submit Silencer Octave Band Results Frequency (Hz) Attenuation (dB)
