Numerical simulation of the creation of a fire fighting barrier using an explosion of a combustible charge

Authors

DOI:

https://doi.org/10.15587/1729-4061.2017.114504

Keywords:

localization of natural fires, fire barrier, explosive method, combustion charge

Abstract

The problem of protection of forests from fire became particularly important in recent years. The use of fire barriers restricts propagation of fire through vegetation. The establishment of fire barriers occurs nowadays due to the use of condensed explosives substances. The study considers the establishment of fire barriers produced by an explosion of double combustion charges. A combustion charge is a polyethylene membrane filled with a fuel-air mixture consisting of combustible gas and air. An increase in the efficiency of a shock wave occurs when we use combustion charges, due to increased pressure pulse, which makes possible to increase the width of a fire barrier to 8 m. People can stow created combustion charges safely and they are much easier than condense charges due to the specific heat of combustion hydrocarbon fuels increased in several times.

We conducted numerous studies to establish fire barriers by the explosion of double combustion charges. We established that purification of ground combustible material occurs at an excess pressure of about 1.2 atmospheres. We calculated fields of pressure, which arises in the explosion of combustion charges in a process of a numerical study. We determined the width of a fire barrier based on the analysis of maximum values of pressure reached at the front of a shock wave. We determined that the width of a fire barrier depends on a number of charges and energy of the explosion. They determine energy of the explosion. As a result of the study, we obtained the dependence of the width of a fire barrier on parameters of double charges. We substantiated the use of a double combustion charge in dependence on a type of vegetation

Author Biographies

Dmytro Dubinin, National University of Civil Protection of Ukraine Chernyshevska str., 94, Kharkiv, Ukraine, 61023

PhD

Department of fire tactics and rescue operations

Konstantin Korytchenko, National Technical University "Kharkiv Polytechnic Institute" Kyrpychova str., 2, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Senior Researcher

Department of General Electrical Engineering

Andrei Lisnyak, National University of Civil Protection of Ukraine Chernyshevska str., 94, Kharkiv, Ukraine, 61023

PhD, Associate professor

Department of fire tactics and rescue operations

Ihor Hrytsyna, National University of Civil Protection of Ukraine Chernyshevska str., 94, Kharkiv, Ukraine, 61023

PhD, Associate professor

Department of fire tactics and rescue operations

Volodimir Trigub, National University of Civil Protection of Ukraine Chernyshevska str., 94, Kharkiv, Ukraine, 61023

PhD, Associate Professor

Department of fire tactics and rescue operations

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Published

2017-11-09

How to Cite

Dubinin, D., Korytchenko, K., Lisnyak, A., Hrytsyna, I., & Trigub, V. (2017). Numerical simulation of the creation of a fire fighting barrier using an explosion of a combustible charge. Eastern-European Journal of Enterprise Technologies, 6(10 (90), 11–16. https://doi.org/10.15587/1729-4061.2017.114504

Issue

Vol. 6 No. 10 (90) (2017): Ecology

Section

Ecology

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Copyright (c) 2017 Dmytro Dubinin, Konstantin Korytchenko, Andrei Lisnyak, Ihor Hrytsyna, Volodimir Trigub

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