Microphone Arrays as a Leakage Detection Tool in Industrial Compressed Air Systems
Joint Authors
Source
Advances in Acoustics and Vibration
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-29
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Compressed air energy is expensive, but common in industrial manufacturing plant.
However, a significant part of the generated compressed air energy is lost due to leakage.
Best practice requires ongoing leak detection and repair.
Leak detection in the ultrasonic frequency range using handheld devices is possible only over short distances as associated high-frequency sound is rapidly attenuated by atmospheric absorption.
Pressurized air escaping to ambience also generates frequencies below 20 kHz.
In this paper beamforming—a well known method for generating noise maps—is tested as a tool for localization of compressed air leaks at larger distances in the audible frequency range.
Advanced beamforming methods in both time domain (broadband) and frequency domain (narrowband) have been implemented in a variety of situations on a laboratory experimental rig with several open blows representing leakage in a noisy environment similar to a factory setting.
Based on the results achieved it is concluded that the microphone array approach has the potential to be a robust leak identification tool.
The experience gained here can also provide useful guidance to the practitioner.
American Psychological Association (APA)
Eret, Petr& Meskell, Craig. 2012. Microphone Arrays as a Leakage Detection Tool in Industrial Compressed Air Systems. Advances in Acoustics and Vibration،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-490727
Modern Language Association (MLA)
Eret, Petr& Meskell, Craig. Microphone Arrays as a Leakage Detection Tool in Industrial Compressed Air Systems. Advances in Acoustics and Vibration No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-490727
American Medical Association (AMA)
Eret, Petr& Meskell, Craig. Microphone Arrays as a Leakage Detection Tool in Industrial Compressed Air Systems. Advances in Acoustics and Vibration. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-490727
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490727