Noise Generation in Piping
Noise Generation in Piping
(OP)
I'm trying to find information on calculating the possible dB of a 10in-6in reducer in a piping system. So far I have not been able to find any data on this type of calculation. I was thinking it would be part specific, so does the manufacturer have that data? Any help is appreciated.





RE: Noise Generation in Piping
Not really something that I've ever had cause to consider!
pipingdesigner
www.pipingdesigners.com
RE: Noise Generation in Piping
The following is lifted from section 2 Limitations:
"In the typical control valve, little noise travels through the wall of the control valve. The noise of
interest is that which travels downstream of the valve inside the pipe and then escapes through
the wall of the pipe to be measured typically at 1 meter (3 feet) downstream of the valve body and
1 meter (3 feet) away from the outside surface of the pipe.
The majority of the test data available to validate the method is from air at moderate downstream
pressures and temperatures; however, it is believed that the method is generally applicable for
other gases and vapors and at higher pressures. The equations include terms that account for
fluid density and ratios of specific heat."
RE: Noise Generation in Piping