A study on the transmission loss of straight‐through type reactive mufflers

Luo, H.; Chen, Yin‐Nan

doi:10.1080/02533839.1994.9677645

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…where the parameters 1 -8 are referred to in Peat. 26 For the cross-flow contraction element, the boundary condition of the perforation part 25 with length lp 1 is shown as equation 6d=dx…”

Section: Mathematical Modelmentioning

confidence: 99%

“…Assuming that (1) the static pressure is uniform at the cross-section of discontinuity, (2) the pressure pulsation is also uniform and equal to its upstream value, 25 and (3) the radial velocity is assumed to be limited to the vicinity of the perforations and is related to pressure difference across the perforated hole, which is shown in equation (4), 24 then the partial differential equations describing the transmission of pressure pulsations inside and outside the perforated pipe are shown as equation (5) 18,26 where p(1) and p(2) are the pulsating pressures inside and outside the perforated pipe (Pa), respectively; ρ is the fluid density (kg/m 3 ); and ζp is the acoustic impedance of the perforated hole. where the parameters α1-α8 are referred to in Peat.…”

Section: Mathematical Modelmentioning

confidence: 99%

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Pulsation attenuation in a reciprocating compressor piping system using a volume-perforated pipe-volume suppressor

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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A volume-perforated pipe-volume suppressor is introduced to study its performance in attenuating pressure pulsations. On the basis of plane wave theory, the work developed a mathematical model to predict the distribution of pressure pulsations in a reciprocating compressor piping system with the proposed suppressor. The theoretical predictions were verified through experiments and three-dimensional fluid dynamics transient simulations, and good agreements were attained. Results proved that the pressure pulsations were attenuated significantly when the suppressor was used. In the frequency domain, the amplitude at the first pulsation frequency was decreased considerably. Both the perforation and cross-sectional areas of the perforated pipe could influence the attenuating capacity. Given a fixed ratio of perforation area to cross-sectional area, the best damping performance could be obtained by increasing the number of perforated holes and reducing the hole diameter. The geometric recommendations produced in this work are useful to control pulsations and vibrations under different functioning conditions.

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“…where the parameters 1 -8 are referred to in Peat. 26 For the cross-flow contraction element, the boundary condition of the perforation part 25 with length lp 1 is shown as equation 6d=dx…”

Section: Mathematical Modelmentioning

confidence: 99%