LAPSE:2018.0494
Published Article
LAPSE:2018.0494
A New Lumped Parameter Model for Natural Gas Pipelines in State Space
September 21, 2018
Many algorithms and numerical methods, such as implicit and explicit finite differences and the method of characteristics, have been applied for transient flow in gas pipelines. From a computational point of view, the state space model is an effective method for solving complex transient problems in pipelines. However, the impulse output of the existing models is not the actual behavior of the pipeline. In this paper, a new lumped parameter model is proposed to describe the inertial nature of pipelines with inlet/outlet pressure and flow rate as outer variables in the state space. Starting from the basic mechanistic partial differential equations of the general one-dimensional compressible gas flow dynamics under isothermal conditions, the transfer functions are first acquired as the fundamental work. With Taylor-expansion and a transformation procedure, the inertia state space models are derived with proper simplification. Finally, three examples are used to illustrate the effectiveness of the proposed model. With the model, a real-time automatic scheduling scheme of the natural gas pipeline could be possible in the future.
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Keywords
lumped parameter, mechanism model, natural gas pipeline, state space model
Subject
Suggested Citation
Wen K, Xia Z, Yu W, Gong J. A New Lumped Parameter Model for Natural Gas Pipelines in State Space. (2018). LAPSE:2018.0494
Author Affiliations
Wen K: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China; State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China [ORCID]
Xia Z: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
Yu W: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
Gong J: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
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Xia Z: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
Yu W: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
Gong J: Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum-Beijing, Beijing 102200, China
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Journal Name
Energies
Volume
11
Issue
8
Article Number
E1971
Year
2018
Publication Date
2018-07-30
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en11081971, Publication Type: Journal Article
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Published Article
LAPSE:2018.0494
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doi:10.3390/en11081971
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[v1] (Original Submission)
Sep 21, 2018
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Sep 21, 2018
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https://psecommunity.org/LAPSE:2018.0494
Original Submitter
Calvin Tsay
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