Version 1
: Received: 19 December 2017 / Approved: 19 December 2017 / Online: 19 December 2017 (07:43:46 CET)
How to cite:
Lu, H.; Huang, K.; Fu, L.; Zhang, Z.; Wu, S.; Lyu, Y. Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel. Preprints2017, 2017120133. https://doi.org/10.20944/preprints201712.0133.v1
Lu, H.; Huang, K.; Fu, L.; Zhang, Z.; Wu, S.; Lyu, Y. Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel. Preprints 2017, 2017120133. https://doi.org/10.20944/preprints201712.0133.v1
Lu, H.; Huang, K.; Fu, L.; Zhang, Z.; Wu, S.; Lyu, Y. Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel. Preprints2017, 2017120133. https://doi.org/10.20944/preprints201712.0133.v1
APA Style
Lu, H., Huang, K., Fu, L., Zhang, Z., Wu, S., & Lyu, Y. (2017). Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel. Preprints. https://doi.org/10.20944/preprints201712.0133.v1
Chicago/Turabian Style
Lu, H., Shijuan Wu and You Lyu. 2017 "Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel" Preprints. https://doi.org/10.20944/preprints201712.0133.v1
Abstract
Due to poor ventilation conditions in the tunnel, if gas pipeline leaks, the consequence of the accident will be more serious. Therefore, before the emergency repair, gas in the tunnel needs to be excharged so as not to explode during the repair process. Therefore, it is necessary to study the ventilation of gas in the tunnel. Based on the computational fluid dynamics (CFD) theory and taking the Yanyingshan tunnel section of China-Myanmar pipeline as an example, this paper uses Fluent software to establish the leakage model of the gas pipeline and fan model in the tunnel and analyzes the influence of different fan locations and number of fans on gas concentration. It can be concluded that: (1) the use of press-in method makes it more efficient to discharge gas out of the tunnel. (2) In order to make ventilation efficient, the fan should be arranged in a higher position and needs to be at a distance from the top of the tunnel. (3) Parallel use of two fans has better ventilation effect than single fan.
Keywords
tunnel; gas pipeline; leakage; computational fluid dynamics; ventilation scheme
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
