13 8월 A pipeline wave absorber will be able to absorb the pressure pulsation, end duct vibrations and reduce air music effectively
The newest magnitude out of noises avoidance resembles brand new voice intake coefficient regarding voice intake construction, perimeter and city ratio out-of a funnel cross-section and you can length away from wave absorber. For it trend absorber, hence uses a mini-perforated tube just like the a lining voice-absorbing situation, their noise removal are going to be computed utilizing the Belov formula:
The latest perforation rate away from a micro-perforated pipe in addition to diameter and you will duration of mini-perforated tubing features a direct impact on the newest consumption effectation of a trend. The fresh regularity away from an over-all hydraulic experience below one thousand Hz. When a beneficial muffler try system regarding a vessel isn’t supplied having a wave absorber, the common height opinions regarding tension fluctuation before and after the newest short tube try 0.092 MPa and you will 0.091 MPa, respectively; in the event that try method is equipped with a revolution absorber, the typical height-to-height values of pressure fluctuation before and after brand new trend absorber was 0.092 MPa and 0.03 MPa, respectively.