Rupture Leakage Model for a Natural Gas Pipeline
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 14, Issue 1
Abstract
A study to develop a rupture leakage calculation model for a natural gas pipeline was conducted. The model was based on the unsteady flow equations in the pipeline combined with the orifice outflow principle. In this article, a description of the rupture and leakage process of the gas pipeline is given. An analytical method that produces functions such as the pressure change in the leakage process, the leakage flow rate, and the cumulative leakage amount was employed. By introducing a balance factor and calculating natural gas capacity using the pipeline state equation before leakage as a reference state, the model results for the leakage process became more credible and useful. A limited exhaustive comparison method is proposed for estimating the leakage process. In the calculations, actual pipeline operational parameters were employed. The model and the proposed method are suitable for analysis and calculations of the rupture leakage of gas pipelines with cutoff devices situated at intervals of 8, 16, 24, and 32 km.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This work was supported by Tianjin Natural Science Foundation (Grant No. 18JCQNJC77800).
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Published In
Journal of Pipeline Systems Engineering and Practice
Volume 14 • Issue 1 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Feb 5, 2022
Accepted: Aug 18, 2022
Published online: Nov 4, 2022
Published in print: Feb 1, 2023
Discussion open until: Apr 4, 2023
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