# Analytical determination of the dynamics of the volumetric optical density of smoke at the initial stage of a fire in compartment’s equipped with smoke ventilation

## Authors

• Sergey S. Botyan State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25
• Sergey M. Zhamoydik State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25
• Vadim A. Kudryashov State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25
• Vladimir A. Osyaev State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25
• Sergey M. Pastukhov State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

## Keywords:

initial stage of fire, optical density of smoke, smoke ventilation, computer simulation

## Abstract

Purpose. To obtain an algebraic equation that allows calculation the dynamics of the volumetric optical density of smoke in a compartment equipped with smoke ventilation.

Methods. Solving the differential equations of the integral fire model and using computational computer models of fire dynamics.

Findings. An algebraic equation is obtained that allows calculating the dynamics of the volumetric optical density of smoke in a compartment equipped with anti-smoke ventilation with comparable accuracy for the field model of fire.

Application field of research. The presented results were obtained to simulate the effects of dangerous fire factors on people and can be used in practical calculations to evaluate the safe evacuation of people from buildings and structures in case of fire.

## Author Biographies

### Sergey S. Botyan, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Chair of Fire Safety, Senior Lecturer

### Sergey M. Zhamoydik, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Chair of Fire Safety, Associate Professor; PhD in Technical Sciences, Associate Professor

### Vadim A. Kudryashov, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Department of Scientific and Innovation Activity, Head of Department of Scientific and Innovation Activity; PhD in Technical Sciences, Associate Professor

### Vladimir A. Osyaev, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Chair of Fire Safety, Associate Professor; PhD in Technical Sciences

### Sergey M. Pastukhov, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

First Deputy Head of the University; PhD in Technical Sciences, Associate Professor

## References

Koshmarov YU.A. Prognozirovanie opasnykh faktorov pozhara v pomeshchenii [Predicting indoor fire hazards]: tutorial. Moscow: State Fire Academy of EMERCOM of Russia, 2000. 118 p. (rus)

Astapenko V.M., Koshmarov Yu.A., Molchadskiy I.S., Shevlyakov A.N. Termogazodinamika pozharov v pomeshcheniyakh [Thermogasdynamics of indoor fires]. Ed. by Yu.A. Koshmarov. Moscow: Stroyizdat, 1988. 448 p. (rus)

Zotov Yu.S. Protsess zadymleniya pomeshcheniy pri pozhare i razrabotka metoda rascheta ne-obkhodimogo vremeni evakuatsii lyudey [The process of smoke in a fire and the development of a method for calculating the necessary time for evacuation of people]: PhD tech. sci. diss.: 05.26.01. Moscow, 1989. 227 p. (rus)

Puzach S.V. Metody rascheta teplomassoobmena pri pozhare v pomeshchenii i ikh primenenie pri reshenii prakticheskikh zadach pozharovzryvobezopasnosti [Calculation methods of heat and mass transfer in case of fire in the room and their application in solving practical problems of fire and explosion safety]. Moscow: State Fire Academy of EMERCOM of Russia, 2005. 336 p. (rus)

Puzach S.V., Kazonov V.M. Teoreticheskie razrabotki integral'nogo metoda modelirovaniya [Theoretical development of the integral modeling method]. Moscow: Pozhnauka, 2000. 482 p. (rus)

Bolod'yan I.A. [et al.]. Razvitie polevogo metoda modelirovaniya pozharov v pomeshcheniyakh [Development of a field method for modeling indoor fires]. Yubileynyy sbornik trudov FGU VNIIPO MChS Rossii [Anniversary Proceedings of the FGBU VNIIPO of EMERCOM of Russia]. Ed. by N.P. Kopylova. Moscow: FGBU VNIIPO of EMERCOM of Russia, 2007. Pp. 54–120. (rus)

Vodnev V.T., Naumovich A.F., Naumovich N.F. Osnovnye matematicheskie formuly [Basic mathematical formulas]: handbook. Ed. by Yu.S. Bogdanov. Minsk: Vysshaya shkola, 1988. 270 p. (rus)

Abstract views: 383

2019-11-18

## How to Cite

Botyan С., Zhamoydik С., Kudryashov В., Osyaev В. and Pastukhov С. (2019) “Analytical determination of the dynamics of the volumetric optical density of smoke at the initial stage of a fire in compartment’s equipped with smoke ventilation”, Journal of Civil Protection, 3(4), pp. 359–365. doi: 10.33408/2519-237X.2019.3-4.359.

## Section

Fire and industrial safety (technical sciences)

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