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On Modelling And Simulating Natural Gas Transmission Systems (Part II)

Authors
  • Bichis Constantin Dorin

    National Gas Transmission Company "TRANSGAZ" SA Medias

  • Dragomir Toma-Leonida

    "Politehnica" University of Timisoara, Department of Automation and Applied Informatics

Abstract
Natural gas transmission systems stand for mathematical modeled complex systems as systems with distributed parameters having the form of differential equations with partial derivatives. In view of studying some practical situations, such as the process of flow along a natural gas pipeline, a simplified mathematical model may be used. Practical operation with this model demands a spatial and temporal discretization of functions of interest (pressure and weight/flow rate). The paper develops one such model and analyses the necessary discretization processes needed for numeric integration. Using an implicitly numeric integration method three case studies suitable to some flow processes through pipelines in distinct situations are developed. As the results obtained by computation are very close to the experimental ones, the case studies acknowledge both the validity of the developed simplified model and those of the calculation procedures used.
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Published
2008-12-31
Section
Articles