Computational study of smoke flow control in garage fires and optimization of the ventilation system

Banjac, Miloš; Nikolić, Barbara

doi:10.2298/tsci0901069b

Cited by 11 publications

(10 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under the assumption that fluid has constant thermophysical properties (molecular viscosity f  , thermal conductivity f  and p c specific heat capacity at constant pressure), the three conservation equations (1-3), two transport equation (4,5), three hypotheses (9-11) and equation of state for ideal-gas:…”

Section: Mathematical Modelmentioning

confidence: 99%

“…for a significantly large number of points in volume. This particular advantage of the CFD approach has made it an almost ideal method for designing ventilation [1,2], HAVC [3,4], smoke extraction systems [5,6]. Also, CFD is powerful tools which can combine architectural and building thermal performance modeling [7], as well as to be used for prediction of flows with chemical reactions, through complex geometry of burners and furnaces [8,9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of Computational Fluid Dynamics in cooling systems design for special purpose objects

Banjac¹

2014

FME Transaction

Self Cite

View full text Add to dashboard Cite

The paper illustrates the basic methodology and principal problems of CFD (Computational Fluid Dynamics) approach in designing a proper cooling system (capacity of cooling, determination of optimal position, number and size of openings for cooling, etc.) in special purpose objects. Taking as an example the design of the cooling for electrical equipment placed in a container of crane MK-46-"GOSA FOM", the problem of the selection of proper cooling system was demonstrated. It has been shown that the numerical fluid dynamics represents a superior approach to the design of these systems., with its ability to, provide precise three-dimensional images of velocity and temperature field in the fluid even before the construction of the facility, as well as to predict the changes of those fields that would appear with modification of geometry, boundary and spatial conditions (opening for injection and exhausting of air, position of the walls and obstacles).

show abstract

Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Computational Fluid Dynamics in cooling systems design for special purpose objects

Banjac¹

2014

FME Transaction

Self Cite

View full text Add to dashboard Cite

show abstract

“…They applied new dimensionless velocity and heat release rates to suggest modified critical velocities. Numerical methods have been used many studies because the results of experimental studies can be compared with numerical studies and fire phenomena in tunnel fires possibly verified under various conditions [7][8][9]. In particular, the aspect ratio of the tunnel is the one of the most interesting factors in tunnel smoke propagation studies.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Effect of Tunnel Aspect Ratio on Evacuation with Unsteady Heat Release Rate Due to Fire in the Case of Two Vehicles

Park

Lee

et al. 2019

Energies

View full text Add to dashboard Cite

In this study, the characteristics of fires in case of two vehicles in a tunnel are analyzed by Computational Fluid Dynamics analysis for varying tunnel aspect ratios. Unsteady heat release rates over time are set as the input conditions of fire sources considering real phenomena. Unsteady heat release rate values are obtained from experiments. As a result, the smoke velocities above the fire source appear faster in the case of tunnels with a large aspect ratio because the higher the height of the tunnel, the faster the smoke velocity caused by buoyancy forces. The smoke velocity in the longitudinal direction increases quickly. However, the temperature distribution in the vicinity of the ceiling is low when the tunnel aspect ratio is large because the height of the tunnel is not directly affected by the flames. Also, the higher the height of the tunnel, the lower the visibility distance due to the heat and smoke coming down along the wall surface. However, in the tunnels represented in this study, it is considered that the visibility of evacuees is sufficiently secured.

show abstract

“…Numerical simulations have also been tried to predict the fire development and to investigate into the efficiency of different smoke control methods in tunnels [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study of the Temperature Distribution in a Road Tunnel Under the Effect of Two Ventilation Systems

Kalech¹,

Bouterra²,

Afif³

et al. 2011

JEP

View full text Add to dashboard Cite

This paper proposes numerical investigations carried out on a small scale tunnel model airing to study the fire-induced smoke control by longitudinal and longitudinal-natural ventilation systems. We studied the effect of two ventilation systems on the temperature distribution and stratification of the pollutant to estimate the efficiency of ventilation systems. The flow is characterized by the temperature fields, temperature profiles and the Froude number. The numerical tool used is FDS (version 4.0). This numerical study requires validation with an experience of literature. Good agreement with experimental results confirms the possibility of using this code in the problem

show abstract

Computational study of smoke flow control in garage fires and optimization of the ventilation system

Cited by 11 publications

References 3 publications

Application of Computational Fluid Dynamics in cooling systems design for special purpose objects

Application of Computational Fluid Dynamics in cooling systems design for special purpose objects

Numerical Study on the Effect of Tunnel Aspect Ratio on Evacuation with Unsteady Heat Release Rate Due to Fire in the Case of Two Vehicles

Study of the Temperature Distribution in a Road Tunnel Under the Effect of Two Ventilation Systems

Contact Info

Product

Resources

About