<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This article presents an examination of the acoustic noise level reduction in piping applications. Hydraulic cavitation is the source of the noise. In order to determine the noise level drop for the insulating material arranged around the pipe – cylindrical geometry – the acoustic spectrum was measured in the range of audible frequencies. Measurements were made for textile materials stacked with varying amounts of layers around the source of noise. There was a decrease in the noise level characteristics for mass law. An empirical formula describing the relative noise reduction for the materials under study was proposed.</p></abstract>

This article presents an examination of the acoustic noise level reduction in piping applications. Hydraulic cavitation is the source of the noise. In order to determine the noise level drop for the insulating material arranged around the pipe – cylindrical geometry – the acoustic spectrum was measured in the range of audible frequencies. Measurements were made for textile materials stacked with varying amounts of layers around the source of noise. There was a decrease in the noise level characteristics for mass law. An empirical formula describing the relative noise reduction for the materials under study was proposed.

Reduction of acoustic cavitation noise emission with textile materials

Institute of Thermal and Process Engineering, Faculty of Mechanical Engineering

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

{"article-title":"Reduction of acoustic cavitation noise emission with textile materials"}

This article presents an examination of the acoustic noise level reduction in piping applications. Hydraulic cavitation is the source of the noise. In order to...

Reduction of acoustic cavitation noise emission with textile materials

Published Online: May 21, 2020

Page range: 123 - 132

Received: Jul 30, 2018

DOI: https://doi.org/10.4467/2353737XCT.18.136.8975

Keywords
cavitation noise, acoustic insulation, noise emission reduction

© 2019 Konrad Nering et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Reduction of acoustic cavitation noise emission with textile materials

Published Online: May 21, 2020

Page range: 123 - 132

Received: Jul 30, 2018

DOI: https://doi.org/10.4467/2353737XCT.18.136.8975

Keywordscavitation noise, acoustic insulation, noise emission reduction

© 2019 Konrad Nering et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Keywords
cavitation noise, acoustic insulation, noise emission reduction