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Study on Hot Gases Flow in Case of Fire in a Road Tunnel

Author

Listed:
  • Aleksander Król

    (Faculty of Transport, Silesian University of Technology, Krasińskiego 8, 40-019 Katowice, Poland)

  • Małgorzata Król

    (Faculty of Energy and Environmental Engineering, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

Abstract

This paper presents the results of hot smoke tests, which were conducted in a real road tunnel. The tunnel is located within the expressway S69 in southern Poland between cities Żywiec and Zwardoń. Its common name is Laliki tunnel. It is a bidirectional non-urban tunnel. The length of the tunnel is 678 m and it is inclined by 4%. It is equipped with the longitudinal ventilation system. Two hot smoke tests have been carried out according to Australian Standard AS 4391-1999. Hot smoke tests corresponded to a Heat Release Rate (HRR) equal to respectively 750 kW and 1500 kW. The fire source was located in the middle of the road lane imitating an initial phase of a car fire (respectively 150 m and 265 m from S portal). The temperature distribution was recorded during both tests using a set of fourteen thermocouples that were mounted at two stand poles located at the main axis of the tunnel on windward. The stand poles were placed at distances of 5 m and 10 m. The recorded data were applied to validate a numerical model, which was built and solved using Ansys Fluent. The calculated temperature distribution matched the measured values.

Suggested Citation

  • Aleksander Król & Małgorzata Król, 2018. "Study on Hot Gases Flow in Case of Fire in a Road Tunnel," Energies, MDPI, vol. 11(3), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:590-:d:135329
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    References listed on IDEAS

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    1. Wacław Dziurzyński & Andrzej Krach & Teresa Pałka, 2017. "Airflow Sensitivity Assessment Based on Underground Mine Ventilation Systems Modeling," Energies, MDPI, vol. 10(10), pages 1-15, September.
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