2024 Volume 80 Issue 16 Article ID: 23-16045
In this study, a novel leak detection method for pipeline using pressure transient data assimilation with a numerical simulation incorporating a numerical scheme corresponding to a single leak point was developed. The accuracy of estimating the leak location and leakage volume for a single leak point was verified using this method. As a result, in both model pipeline experiments and field pipeline experiments, the estimated leak location error relative to the total length of the pipe was approximately less than 2%, and the leak volume error relative to the measured value was approximately less than 30%, indicating that this leak detection method has a practically feasible level of performance. Furthermore, the limitation of leak detection in terms of leak scale was determined to be approximately 1.70×10-5 and 2.73×10-3 times the pipe cross-sectional area in the model and field pipeline experiments, respectively, which corresponds to be significantly smaller than those reported in previous research, and at a similar level to them.
