Exhaust gas system with helmholtz resonator
AssigneeABB Turbo Systems AG
InventorGünter Kudernatsch
Life of this patent
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Abstract
A Helmholtz resonator (24, 24′, 24″, 24a), which is screened in an acoustically transparent manner from the flow (S) by means of an absorption noise suppressor (36) is located on the flow duct (16) in order to suppress the low frequencies in an exhaust gas system (10) for industrial gas turbines with an exhaust gas conduit (12) and a chimney (14) which is connected to it, which together form a continuous flow duct (16).
Claims14
An exhaust gas system for industrial gas turbines with an exhaust gas conduit and a chimney connected to it, which together form a continuous flow duct, and having a device for noise reduction, wherein a Helmholtz resonator is provided for suppressing the low frequencies of the noise Helmholtz resonator being located outside of said flow duct and having an inlet region arranged in the region of a pressure maximum of an acoustic mode.
Dependencies are inferred from the claim text.