کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
588394 878568 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acoustic detection technology for gas pipeline leakage
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Acoustic detection technology for gas pipeline leakage
چکیده انگلیسی

Gas leakage from pipeline leads to significant environmental damages and industrial hazards, so small leakage detection for gas pipeline is essential to avoid these serious leakages. However, because of the high frequency component of leakage signal attenuates quickly, traditional detection method which inspects pressure or vibration signal has problem to get effective information from leakage signal. So, a novel detection method based on acoustic wave is proposed. This paper, firstly, researches on the phonation principle of pipeline leakage and the characteristic of sound source, and simulates the leakage acoustic field on the basis of aero acoustics. Secondly, using Wavelet Packet Transform method and Fuzzy Support Vector Machine pattern classification, the laboratory testing for identifying acoustic signal of gas pipeline leakage is presented. Finally, the field application demonstrates that the detection system could identify small gas leakage effectively and avoids false-alarms which caused by running conditions with a good prospect.


► Propose novel sound pressure capture method based on acoustic technology.
► Position and alarm gas leakage in time by acoustic detection method in experiment and field test.
► Increase the system ability of small leakage detection.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 91, Issue 4, July 2013, Pages 253–261
نویسندگان
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