Fire suppression using water mists – a numerical model

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HADJISOPHOCLEOUS, George V.;AN, Mingwang ;COSTA, Vitor A.F.;SOUSA, Antonio C. M..
Fire suppression using water mists – a numerical model. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 47, n.8, p. 424-434, july 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/>. Date accessed: 22 jun. 2024. 
doi:http://dx.doi.org/.
Hadjisophocleous, G., An, M., Costa, V., & Sousa, A.
(2001).
Fire suppression using water mists – a numerical model.
Strojniški vestnik - Journal of Mechanical Engineering, 47(8), 424-434.
doi:http://dx.doi.org/
@article{.,
	author = {George V. Hadjisophocleous and Mingwang  An and Vitor A.F. Costa and Antonio C. M. Sousa},
	title = {Fire suppression using water mists – a numerical model},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {47},
	number = {8},
	year = {2001},
	keywords = {Fire suppression; water mist; numerical modelling; },
	abstract = {The modeling of fire suppression using fine watersprays is described within the context of an engineering computer model. A Lagrangian formulation was selected for the liquid droplet phase, while the gas phase uses an Eulerian formulation based on the RANS equations with a two-equation turbulence model. The fire is assumed to be a turbulent diffusion flame with its behavior dependent upon the supply of hydrocarbon fuel and the air accessing the fire. A feedback mechanism is also implemented, which dictates the rate of fuel evaporation. The flammability limits of the fuel vapor are taken into account, and the concentrations of fuel vapor, air, combustion products and steam evaporated from the droplets in the gas mixture are calculated by solving the equations for the mixture mass fractions. The droplets/gas phase interaction is described through source terms in the gas-phase equations.The time-dependent equations governing the gas phase are solved in primitive variable form by using a segregated technique. The ordinary differential equations for droplet motion, heating and evaporation are solved by an explicit forward time integration, which starts at the injection point. The droplet time step is determined by considering the turbulence dispersion of the droplets. The predictions produced by the model for the three different cases examined are physically realistic, notwithstanding the uncertainties associated with the experimental data and the input parameters.},
	issn = {0039-2480},	pages = {424-434},	doi = {},
	url = {https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/}
}
Hadjisophocleous, G.,An, M.,Costa, V.,Sousa, A.
2001 July 47. Fire suppression using water mists – a numerical model. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 47:8
%A Hadjisophocleous, George V.
%A An, Mingwang 
%A Costa, Vitor A.F.
%A Sousa, Antonio C. M.
%D 2001
%T Fire suppression using water mists – a numerical model
%B 2001
%9 Fire suppression; water mist; numerical modelling; 
%! Fire suppression using water mists – a numerical model
%K Fire suppression; water mist; numerical modelling; 
%X The modeling of fire suppression using fine watersprays is described within the context of an engineering computer model. A Lagrangian formulation was selected for the liquid droplet phase, while the gas phase uses an Eulerian formulation based on the RANS equations with a two-equation turbulence model. The fire is assumed to be a turbulent diffusion flame with its behavior dependent upon the supply of hydrocarbon fuel and the air accessing the fire. A feedback mechanism is also implemented, which dictates the rate of fuel evaporation. The flammability limits of the fuel vapor are taken into account, and the concentrations of fuel vapor, air, combustion products and steam evaporated from the droplets in the gas mixture are calculated by solving the equations for the mixture mass fractions. The droplets/gas phase interaction is described through source terms in the gas-phase equations.The time-dependent equations governing the gas phase are solved in primitive variable form by using a segregated technique. The ordinary differential equations for droplet motion, heating and evaporation are solved by an explicit forward time integration, which starts at the injection point. The droplet time step is determined by considering the turbulence dispersion of the droplets. The predictions produced by the model for the three different cases examined are physically realistic, notwithstanding the uncertainties associated with the experimental data and the input parameters.
%U https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/
%0 Journal Article
%R 
%& 424
%P 11
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 47
%N 8
%@ 0039-2480
%8 2017-07-07
%7 2017-07-07
Hadjisophocleous, George, Mingwang  An, Vitor A.F. Costa, & Antonio C. M. Sousa.
"Fire suppression using water mists – a numerical model." Strojniški vestnik - Journal of Mechanical Engineering [Online], 47.8 (2001): 424-434. Web.  22 Jun. 2024
TY  - JOUR
AU  - Hadjisophocleous, George V.
AU  - An, Mingwang 
AU  - Costa, Vitor A.F.
AU  - Sousa, Antonio C. M.
PY  - 2001
TI  - Fire suppression using water mists – a numerical model
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - Fire suppression; water mist; numerical modelling; 
N2  - The modeling of fire suppression using fine watersprays is described within the context of an engineering computer model. A Lagrangian formulation was selected for the liquid droplet phase, while the gas phase uses an Eulerian formulation based on the RANS equations with a two-equation turbulence model. The fire is assumed to be a turbulent diffusion flame with its behavior dependent upon the supply of hydrocarbon fuel and the air accessing the fire. A feedback mechanism is also implemented, which dictates the rate of fuel evaporation. The flammability limits of the fuel vapor are taken into account, and the concentrations of fuel vapor, air, combustion products and steam evaporated from the droplets in the gas mixture are calculated by solving the equations for the mixture mass fractions. The droplets/gas phase interaction is described through source terms in the gas-phase equations.The time-dependent equations governing the gas phase are solved in primitive variable form by using a segregated technique. The ordinary differential equations for droplet motion, heating and evaporation are solved by an explicit forward time integration, which starts at the injection point. The droplet time step is determined by considering the turbulence dispersion of the droplets. The predictions produced by the model for the three different cases examined are physically realistic, notwithstanding the uncertainties associated with the experimental data and the input parameters.
UR  - https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/
@article{{}{.},
	author = {Hadjisophocleous, G., An, M., Costa, V., Sousa, A.},
	title = {Fire suppression using water mists – a numerical model},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {47},
	number = {8},
	year = {2001},
	doi = {},
	url = {https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/}
}
TY  - JOUR
AU  - Hadjisophocleous, George V.
AU  - An, Mingwang 
AU  - Costa, Vitor A.F.
AU  - Sousa, Antonio C. M.
PY  - 2017/07/07
TI  - Fire suppression using water mists – a numerical model
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 47, No 8 (2001): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - Fire suppression, water mist, numerical modelling, 
N2  - The modeling of fire suppression using fine watersprays is described within the context of an engineering computer model. A Lagrangian formulation was selected for the liquid droplet phase, while the gas phase uses an Eulerian formulation based on the RANS equations with a two-equation turbulence model. The fire is assumed to be a turbulent diffusion flame with its behavior dependent upon the supply of hydrocarbon fuel and the air accessing the fire. A feedback mechanism is also implemented, which dictates the rate of fuel evaporation. The flammability limits of the fuel vapor are taken into account, and the concentrations of fuel vapor, air, combustion products and steam evaporated from the droplets in the gas mixture are calculated by solving the equations for the mixture mass fractions. The droplets/gas phase interaction is described through source terms in the gas-phase equations.The time-dependent equations governing the gas phase are solved in primitive variable form by using a segregated technique. The ordinary differential equations for droplet motion, heating and evaporation are solved by an explicit forward time integration, which starts at the injection point. The droplet time step is determined by considering the turbulence dispersion of the droplets. The predictions produced by the model for the three different cases examined are physically realistic, notwithstanding the uncertainties associated with the experimental data and the input parameters.
UR  - https://www.sv-jme.eu/article/fire-suppression-using-water-mists-a-numerical-model/
Hadjisophocleous, George, An, Mingwang, Costa, Vitor, AND Sousa, Antonio.
"Fire suppression using water mists – a numerical model" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 47 Number 8 (07 July 2017)

Authors

Affiliations

  • Fire Risk Management, Institute for Research in Construction - NRC, Ottawa, Canada
  • Atlantic Nuclear Services Ltd., Fredericton, Canada
  • Universidade de Aveiro, Department of Mechanical Engineering, Portugal
  • University of New Brunswick, Department of Mechanical Engineering, Canada

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 47(2001)8, 424-434
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.

The modeling of fire suppression using fine watersprays is described within the context of an engineering computer model. A Lagrangian formulation was selected for the liquid droplet phase, while the gas phase uses an Eulerian formulation based on the RANS equations with a two-equation turbulence model. The fire is assumed to be a turbulent diffusion flame with its behavior dependent upon the supply of hydrocarbon fuel and the air accessing the fire. A feedback mechanism is also implemented, which dictates the rate of fuel evaporation. The flammability limits of the fuel vapor are taken into account, and the concentrations of fuel vapor, air, combustion products and steam evaporated from the droplets in the gas mixture are calculated by solving the equations for the mixture mass fractions. The droplets/gas phase interaction is described through source terms in the gas-phase equations.The time-dependent equations governing the gas phase are solved in primitive variable form by using a segregated technique. The ordinary differential equations for droplet motion, heating and evaporation are solved by an explicit forward time integration, which starts at the injection point. The droplet time step is determined by considering the turbulence dispersion of the droplets. The predictions produced by the model for the three different cases examined are physically realistic, notwithstanding the uncertainties associated with the experimental data and the input parameters.

Fire suppression; water mist; numerical modelling;