MODEL OF MULTICOMPONENT LIQUID POOL EVAPORATION FORMED DUE ACCIDENTAL SPILLS

Authors

  • V. Smalii Volodymir Dahl East-Ukrainian National University
  • E. Tolok Scientific Center of Risks Investigation Rizikon

DOI:

https://doi.org/10.31471/2415-3184-2022-2(26)-122-132

Keywords:

evaporation, multicomponent mixture, model, phase equilibrium, heat flow, hydrocarbons, cryogenic substance, ethanol

Abstract

Quantitative analysis and assessment of technogenic risk imply a thorough study of the emergency process at the level of phenomenology. In the process of such a study, mathematical models of the physical and chemical processes of the formation of a hazardous substance in the surrounding space, the occurrence and influence of damaging factors on recipients, which are people, the environment, buildings and equipment, are involved. One of the most common scenarios for the formation of a hazardous substance in the environment is the spillage of a liquid phase, often of a multicomponent composition, onto the earth's surface. The subsequent evaporation of a hazardous substance is a key factor in the formation of an explosive, flammable or toxic cloud. Therefore, it is extremely important to correctly assess the intensity of the release of a hazardous substance into the environment.

This study presents a mathematical model for the evaporation of a multicomponent liquid from the surface of an emergency spill, taking into account external energy flows that affect the evaporation process (heat flow from atmospheric air, heat flow from the underlying surface, radiation flow from the sun). The effect of cooling due to evaporation is taken into account. The developed model takes into account the mutual influence of the component composition of the liquid phase and the evaporation process. A comparative analysis of the simulation results was made with the published experimental data on the processes of evaporation of a cryogenic liquid (nitrogen) and liquids under non-boiling conditions such as ethanol and cyclohexane. The results of the comparison showed the applicability of the model in the field of quantitative risk analysis and assessment, and also revealed ways to improve the mathematical model of the multicomponent liquid pool evaporation.

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References

BS EN IEC 31010. Risk management. Risk assessment techniques. Official edition. European Standards, 2019. 264 p.

Pro zatverdzhennya metodyky prognozyvannya naslidkiv vpluvy (vukudy) nebezpechnych rechovyn pyd chas avaryj na chimychno nebezpechnych objektach y transportu : Nakaz Mynysterstva vnutrishnich sprav Ukrayny of 29.11.2019 no. 1000. URL: https://zakon.rada.gov.ua/laws/show/z0440-20#Text (date of access: 15.12.2022).

Methods for the calculation of physical effects. Due to releases of hazardous materials (liquids and gases). The Hague : Min. VROM, 2005. 870 p.

Methods for the determination of possible damage to people and objects resulting from releases of hazardous materials. Voorburg : Director-General of Labour, 1992.

Marshall V. C. Major chemical hazards. Ellis Horwood Ltd, 1987. 1033 p.

Beschastnov M. V. Avaryjy v hymycheskyh proyzvodstvach y mery yh preduprezdenya. M. 1976. 367 p.

Habib A., Schalau B. Pool Evaporation – Experimental Data Collection and Modeling. Chemical Engineering & Technology. 2019. Vol. 42, no. 11. P. 2450–2457. URL: https://doi.org/10.1002/ceat.201800093 (date of access: 15.12.2022)

Predicting the vaporization rate of a spreading cryogenic liquid pool on concrete using an improved 1-D heat conduction equation / J. Dong et al. Heat and Mass Transfer. 2021. URL: https://doi.org/10.1007/s00231-021-03018-9 (date of access: 15.12.2022).

Yaws C. L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical ... C1 to C100 Organics and Ac to Zr Inorganics. Gulf Professional Publishing, 2015. 832 p.

Stromberg A. G. Physicheskaya chimiya. Moskow : Vyshaya shkola, 1999. 527 p.

Krutov V. I. Technycheskaya Termodynamyka. Moskow : Vyshaya shkola., 1971. 472 p.

Fernandez M. I. Modelling spreading, vaporisation and dissolution of multi-component pools : Electronic Thesis or Dissertation. 2013. URL: http://discovery.ucl.ac.uk/1386059/ (date of access: 15.12.2022).

Nawaz W. Modeling of the Cryogenic Liquid Pool Evaporation and the Effect of the Convective Heat Transfer from Atmosphere - CORE Reader. CORE – Aggregating the world’s open access research papers. URL: https://core.ac.uk/reader/79648530 (date of access: 15.12.2022).

Justus C. G., Mikhail A. Height variation of wind speed and wind distributions statistics. Geophysical Research Letters. 1976. Vol. 3, no. 5. P. 261–264. URL: https://doi.org/10.1029/gl003i005p00261 (date of access: 15.12.2022).

Hirschfelder J. O. Molecular theory of gases and liquids. New York : Wiley, 1964. 1219 p.

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Published

2023-03-05

How to Cite

Smalii, V., & Tolok, E. (2023). MODEL OF MULTICOMPONENT LIQUID POOL EVAPORATION FORMED DUE ACCIDENTAL SPILLS. Ecological Safety and Balanced Use of Resources, (2(26), 122–132. https://doi.org/10.31471/2415-3184-2022-2(26)-122-132

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Section

Моніторинг, моделювання та прогнозування стану довкілля
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