Leakage localization in a pressurized gas pipe

In this paper, the position of the leakage in a pressurized gas pipe is localized. As an experimental example, the leakage in a steel pipe is simulated by different orifices. To decrease the risk of explosion and environmental contamination during experiments, pressurized air was used instead of natural gas. Most of the published papers are based on using high sampling rate sensors placed on both sides of the leakage. In this study, a new method is extended due to leakage localization in a gas pipe. To achieve this goal, attenuation analysis is implementing by installing two sensors on one side of the pipe. In the proposed technique, the dominant frequency of recorded signals is used, to decrease the effect of background noises on final results. Experimental results reveal by increasing the pressure the leakage localization error is decreased. Finally, by implementing signal processing into the data the average value of leakage localization error is reported 13.77 cm.