CFD Modelling of LPG Dispersion in a Road Environment
Journal article, 2024
the properties of the leakage. Furthermore, the presence of vehicles on the road may significantly affect the dispersion and concentration of the cloud and may cause partial confinement or obstruction of the cloud, which could potentially become a source of dangerous gas explosions on the road. This paper presents a numerical study of dispersion of LPG in a road environment following an unintended leakage from a road tanker. The work was conducted using the computational fluid dynamics (CFD) code FLACS-CFD. The purpose was to quantify the extension of the gas cloud within the flammability limits for different leak properties, wind conditions, and traffic layout. For each case, an equivalent gas cloud with a regular shape and stoichiometric concentration was determined using the Q9 cloud model. Based on the results, recommendations for the choice of equivalent gas volume for different standard scenarios are presented.
Author
Fabio José Lozano Mendoza
Chalmers, Architecture and Civil Engineering, Structural Engineering
Morgan Johansson
Chalmers, Architecture and Civil Engineering, Structural Engineering
Joosef Leppänen
Chalmers, Architecture and Civil Engineering, Structural Engineering
Mario Plos
Chalmers, Architecture and Civil Engineering, Structural Engineering
Chemical Engineering Transactions
22839216 (ISSN) 22839216 (eISSN)
Vol. 111 313-318Explosions in a denser urban environment
Swedish Transport Administration (TRV 2020/36543), 2020-09-01 -- 2023-08-31.
Swedish Civil Contingencies Agency, 2021-01-01 -- 2023-12-31.
Swedish Fortifications Agency (3978/2013), 2021-01-01 -- 2023-12-31.
Subject Categories
Other Engineering and Technologies
Civil Engineering
Chemical Engineering
Infrastructure
C3SE (Chalmers Centre for Computational Science and Engineering)
DOI
10.3303/CET24111053