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Real gas flow simulation in damaged distribution pipelines

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  • Kostowski, Wojciech J.
  • Skorek, Janusz

Abstract

The paper discusses chosen issues concerning damaged gas pipelines. Attention is paid to modelling the steady-state flow of natural gas in distribution pipelines, and the most commonly applied models of isothermal and adiabatic flow are evaluated for both the ideal and the real gas properties. A method of accounting for a leakage by means of a reference flow equation with a discharge coefficient is presented, and the dependency of the discharge coefficient on pressure is demonstrated both with literature data and the authors' experimental results. A relevant computational study of a pipeline failure is presented for a high- and a medium pressure pipeline. The importance of an appropriate choice of the flow model (isothermal or adiabatic flow of real or ideal gas) is demonstrated by the results of the study. It is shown that accounting for the variability of the discharge coefficient is required if medium pressure pipelines are analysed. However, it is eventually shown that the impact of the discharge coefficient on the predicted outflow rate is of lesser importance than that of the applied flow model.

Suggested Citation

  • Kostowski, Wojciech J. & Skorek, Janusz, 2012. "Real gas flow simulation in damaged distribution pipelines," Energy, Elsevier, vol. 45(1), pages 481-488.
    • Handle: RePEc:eee:energy:v:45:y:2012:i:1:p:481-488
    DOI: 10.1016/j.energy.2012.02.076
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    References listed on IDEAS

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    1. Yazdani Damavandi, Maziar & Kiaei, Iman & Sheikh-El-Eslami, Mohamad Kazem & Seifi, Hossein, 2011. "New approach to gas network modeling in unit commitment," Energy, Elsevier, vol. 36(10), pages 6243-6250.
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    Cited by:

    1. Liu, Cuiwei & Wang, Yazhen & Li, Xinhong & Li, Yuxing & Khan, Faisal & Cai, Baoping, 2021. "Quantitative assessment of leakage orifices within gas pipelines using a Bayesian network," Reliability Engineering and System Safety, Elsevier, vol. 209(C).
    2. Jin Cai & Xiangwei Kong & Mingzhu Yu, 2022. "Mathematical Modeling of Sintering Air Leakage through Holes," Energies, MDPI, vol. 15(12), pages 1-19, June.
    3. Li, Kang & Zhou, Xuejin & Tu, Ran & Xie, Qiyuan & Jiang, Xi, 2014. "The flow and heat transfer characteristics of supercritical CO2 leakage from a pipeline," Energy, Elsevier, vol. 71(C), pages 665-672.
    4. Szoplik, Jolanta, 2016. "Improving the natural gas transporting based on the steady state simulation results," Energy, Elsevier, vol. 109(C), pages 105-116.
    5. Askari, S. & Montazerin, N. & Fazel Zarandi, M.H., 2016. "Gas networks simulation from disaggregation of low frequency nodal gas consumption," Energy, Elsevier, vol. 112(C), pages 1286-1298.

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