Development of an Approach to Assess the Consequences of Fuel-Air Mixtures Explosions Taking into Account the Development Features

Introduction. In the study of the problem of the impact of negative factors from explosions at gas stations on people and the infrastructure of settlements, a probabilistic approach is often used. The limitation of this approach is that when it is implemented, the concept of clutter of the surrounding space does not reflect the relationship between the area occupied by buildings and the total area affected by the shock wave. Therefore, this article is devoted to the development and justification of an approach to assessing the consequences of explosions of fuel-air mixtures (FA), taking into account the peculiarities of the development of settlements. The work objective is to develop an approach for assessing the consequences of explosions of fuel-air mixtures, taking into account the development features. The solution to this problem will facilitate decision-making for the development of effective protective measures for surrounding objects.

Materials and Methods. The authors have conducted an analytical review of the research results in the field of study and the existing approaches to assessing the consequences of explosions at filling stations (FS) and gas stations (GS), based on the specific conditions of their location on the territory of settlements.

Results. An approach has been developed to assess the consequences of explosions of fuel-air mixtures, taking into account the development features. The main causes, types of accidents with an explosion at a gas station and the scale of their consequences have been identified. Along with the theoretical justification of the issue under consideration, the authors provide a detailed description of the applied research methodology, as well as the characteristics of the objects of research, taking into account their location. When calculating the consequences of explosions of fuel-air mixtures, it was proposed for the first time to use a development density factor equal to the ratio of the area of the existing facilities to the total area of the territory affected by the shock wave. This approach justifies the need to apply additional protective measures in the areas where gas stations are located. The methods of analysis used are described in detail with justification of the reliability of the measurement results.

Discussion and Conclusion. The application of the approach proposed in the article for calculating the consequences of an explosion of fuel-air mixtures, taking into account the development density, makes it possible to control the location and the level of risk from possible explosions at gas stations in a real situation. The proposed approach for calculating the consequences allows you to quickly assess possible risks in real time and plan specific measures to minimize them in accordance with the existing situation in the area of the gas station.

1. Shakhmanov FF. Risk-orientirovannyi metod osushchestvleniya pozharnogo nadzora avtomobil'nykh gazozapravochnykh stantsii. Author’s thesis. Moscow; 2018. 115 p. (In Russ.).

2. Liu Y, Kong Z, Zhang Q. Failure modes and effects analysis (FMEA) for the security of the supply chain system of the gas station in China. Ecotoxicology and environmental safety. 2018;164:325–330. https://doi.org/10.1016/j.ecoenv.2018.08.028

3. Ivanov EA, Aganov AA, Buiko KV, et al. Metodiki otsenki posledstvii avarii na opasnykh proizvodstvennykh ob"ektakh. Collection of documents. Ser. 27. Iss. 2. 3rd ed., rev. and add. Moscow: Scientific and Technical Center of Industrial Safety Problems Research (Closed Joint Stock Company); 2010. 208 p. (In Russ.).

4. Zhou XQ, Hao H. Prediction of airblast loads on structures behind a protective barrier. International Journal of Impact Engineering. 2008;35(5):363–375. https://doi.org/10.1016/j.ijimpeng.2007.03.003

5. Liang H, Wang T, Luo Z, et al. Risk Assessment of Liquefied Petroleum Gas Explosion in a Limited Space. ACS Omega. 2021;6(38):24683–24692. https://doi.org/10.1021/acsomega.1c03430

6. Green Book. Methods for the determination of possible damage to people and objects resulting from release of hazardous materials. Committee for the Prevention of Disasters caused by dangerous substances. The Hague: Directorate-General of Labour of the Ministry of Social Affairs and Employment. CPR 16E, Second Edition, 2005, 337 p.

7. Balocki James B. (Secretary of the Navy) Northwest Training and Testing. Final Supplemental Environmental Impact Statement/Overseas Environmental Impact Statement (SEIS/OEIS). Appendix D Acoustic and Explosive Concepts: U.S. Navym, 2022. 26 p. URL:https://nwtteis.com/portals/nwtteis/files/final_seis/section/NWTT_Final_SEIS_Sept2020_Appendix_D_Acoustic_and_Explosive_Concepts.pdf (accessed 18.09.2022).

8. Zhang J, Xu K, You G, et al. Causation Analysis of Risk Coupling of Gas Explosion Accident in Chinese Underground Coal Mines. Risk Analysis. 2019;39(7):1634–1646. https://doi.org/10.1111/risa.13311

9. Lobato J, Rodríguez J, Jiménez C, et al. Consequence analysis of an explosion by simple models: Texas refinery gasoline explosion case. Journal of Chemical Engineering Theoretical and Applied Chemistry. 2009;66(543). URL: https://raco.cat/index.php/afinidad/article/view/279547 (accessed 27.09.2022).

10. Grishkevich AA, Filin VA, Ushakov VS, Mankovskii GI. Otsenka moshchnosti vzryvov gazoparovozdushnykh smesei pri avariinykh prolivakh szhizhennogo prirodnogo gaza. Sistemy bezopasnosti. Security and Safety. Katalog «Pozharnaya bezopasnost' — 2017». 2017. P. 46–52. URL: http://lib.secuteck.ru/articles2/firesec/otsenka-moschnosti-vzryvov-gazoparovozdushnyh-smesey-pri-avariynyh-prolivah-szhizhennogo-prirodnogo-gaza (accessed 24.11.2022). (In Russ.).

11. Formulae for ammunition management: International Ammunition Technical Guidelines IATG 01.80:2021[E]. Third edition. United Nations Office for Disarmament Affairs; 2021. 1331 p.