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An Inverse Transient Nonmetallic Pipeline Leakage Diagnosis Method Based on Markov Quantitative Judgment
Joint Authors
Hao, Yongmei
Ma, Yifei
Jiang, Juncheng
Xing, Zhixiang
Ni, Lei
Yang, Jian
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-22
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Aiming at the problems of early leakage monitoring of urban nonmetallic pipelines and the large positioning error, an inverse transient urban nonmetallic gas pipelines leakage location method based on Markov quantitative judgment was proposed.
A Markov flow state transition probability matrix was established based on the flow data under different pressures obtained by experiments to quantitatively determine the pipeline leakage status.
On this basis, an inverse transient leakage control equation suitable for urban nonmetallic gas pipeline leakage location was constructed according to the actual.
The difference between the pressure and the calculated pressure was sought for the objective function.
Finally, the objective function was optimized in conjunction with the sequential quadratic programming (SQP) method to obtain the actual leakage parameters and calculate the size and location of the leakage source.
The results show that the inverse transient leakage localization method based on Markov’s quantitative judgment can more accurately determine the leakage status of the pipeline and calculate the early leakage parameters and leakage location of the gas pipeline, which improves the positioning accuracy.
American Psychological Association (APA)
Hao, Yongmei& Ma, Yifei& Jiang, Juncheng& Xing, Zhixiang& Ni, Lei& Yang, Jian. 2020. An Inverse Transient Nonmetallic Pipeline Leakage Diagnosis Method Based on Markov Quantitative Judgment. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129615
Modern Language Association (MLA)
Hao, Yongmei…[et al.]. An Inverse Transient Nonmetallic Pipeline Leakage Diagnosis Method Based on Markov Quantitative Judgment. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1129615
American Medical Association (AMA)
Hao, Yongmei& Ma, Yifei& Jiang, Juncheng& Xing, Zhixiang& Ni, Lei& Yang, Jian. An Inverse Transient Nonmetallic Pipeline Leakage Diagnosis Method Based on Markov Quantitative Judgment. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129615
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129615