Characterization of In-Pipe Acoustic Wave for Water Leak Detection
This paper presents experimental observations on the characteristics of the acoustic signal propagation and attenuation inside water-filled pipes. An acoustic source (exciter) is mounted on the internal pipe wall, at a fixed location, and produces a tonal sound to simulate a leak noise with controll...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Society of Mechanical Engineers (ASME)
2017
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| Online Access: | http://hdl.handle.net/1721.1/108658 https://orcid.org/0000-0002-0209-0279 |
| _version_ | 1826208716387516416 |
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| author | Khalifa, Atia E. Ben-Mansour, Rached Youcef-Toumi, Kamal Choi, Changrak |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Khalifa, Atia E. Ben-Mansour, Rached Youcef-Toumi, Kamal Choi, Changrak |
| author_sort | Khalifa, Atia E. |
| collection | MIT |
| description | This paper presents experimental observations on the characteristics of the acoustic signal propagation and attenuation inside water-filled pipes. An acoustic source (exciter) is mounted on the internal pipe wall, at a fixed location, and produces a tonal sound to simulate a leak noise with controlled frequency and amplitude, under different flow conditions. A hydrophone is aligned with the pipe centerline and can be re-positioned to capture the acoustic signal at different locations. Results showed that the wave attenuation depends on the source frequency and the line pressure. High frequency signals get attenuated more with increasing distance from the source. The optimum location to place the hydrophone for capturing the acoustic signal is not at the vicinity of source location. The optimum location also depends on the frequency and line pressure. It was also observed that the attenuation of the acoustic waves is higher in more flexible pipes like PVC ones. |
| first_indexed | 2024-09-23T14:10:40Z |
| format | Article |
| id | mit-1721.1/108658 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:10:40Z |
| publishDate | 2017 |
| publisher | American Society of Mechanical Engineers (ASME) |
| record_format | dspace |
| spelling | mit-1721.1/1086582022-09-28T19:04:08Z Characterization of In-Pipe Acoustic Wave for Water Leak Detection Khalifa, Atia E. Ben-Mansour, Rached Youcef-Toumi, Kamal Choi, Changrak Massachusetts Institute of Technology. Department of Mechanical Engineering Youcef-Toumi, Kamal Choi, Changrak This paper presents experimental observations on the characteristics of the acoustic signal propagation and attenuation inside water-filled pipes. An acoustic source (exciter) is mounted on the internal pipe wall, at a fixed location, and produces a tonal sound to simulate a leak noise with controlled frequency and amplitude, under different flow conditions. A hydrophone is aligned with the pipe centerline and can be re-positioned to capture the acoustic signal at different locations. Results showed that the wave attenuation depends on the source frequency and the line pressure. High frequency signals get attenuated more with increasing distance from the source. The optimum location to place the hydrophone for capturing the acoustic signal is not at the vicinity of source location. The optimum location also depends on the frequency and line pressure. It was also observed that the attenuation of the acoustic waves is higher in more flexible pipes like PVC ones. Center for Clean Water and Clean Energy at MIT and KFUPM 2017-05-04T13:49:05Z 2017-05-04T13:49:05Z 2011-11 Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-5494-5 http://hdl.handle.net/1721.1/108658 Khalifa, Atia E. et al. “Characterization of In-Pipe Acoustic Wave for Water Leak Detection.” ASME 2011 International Mechanical Engineering Congress and Exposition, 11-17 November, 2011, Denver, Colorado, USA, ASME, 2011. https://orcid.org/0000-0002-0209-0279 en_US http://dx.doi.org/10.1115/IMECE2011-62333 Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition IMECE2011 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Society of Mechanical Engineers (ASME) American Society of Mechanical Engineers (ASME) |
| spellingShingle | Khalifa, Atia E. Ben-Mansour, Rached Youcef-Toumi, Kamal Choi, Changrak Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title | Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title_full | Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title_fullStr | Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title_full_unstemmed | Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title_short | Characterization of In-Pipe Acoustic Wave for Water Leak Detection |
| title_sort | characterization of in pipe acoustic wave for water leak detection |
| url | http://hdl.handle.net/1721.1/108658 https://orcid.org/0000-0002-0209-0279 |
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