Abstract

The nuclear industry has seen an increased use of computational fluid dynamics (CFD) technology as a high-fidelity tool for design-basis and beyond-design-basis accident simulations. Among its applications, CFD modeling of fire and smoke propagation in confined zones (e.g., a main control room (MCR)) is a promising approach, since detailed experimental investigation under various accident scenarios would be difficult. Egress analysis considering human behaviors is of significant importance to an effective accident mitigation strategy, and high-fidelity analysis tools now encompass these parameters in the simulation and design of emergency evacuations. In this study, the fire and smoke propagation in a MCR is modeled using the large eddy simulations (LES) code fire dynamics simulator (FDS), along with an evacuation module, EVAC to simulate the emergency egress under an electrical cabinet fire scenario. The FDS results presented in this paper constitute the first step at Canadian Nuclear Laboratories (CNL) in advancing the CFD modeling of fire and evacuation for nuclear applications.

References

1.
U.S. NRC and EPRI,
2012
, “
Nuclear Power Plant Fire Modeling Application Guide (NPP FIRE MAG)
,” U.S. NRC and EPRI, Washington DC, Report No. NUREG-1934 (EPRI 1019195).
2.
Wang
,
B.
,
2011
, “
Comparative Research on FLUENT and FDS's Numerical Simulation of Smoke Spread in Subway Platform Fire
,”
Procedia Eng.
,
26
, pp.
1065
1075
.10.1016/j.proeng.2011.11.2275
3.
Liu
,
Y.
,
Moser
,
A.
, and
Sinai
,
Y.
,
2004
, “
Comparison of a CFD Fire Model Against a Ventilated Fire Experiment in an Enclosure
,”
Int. J. Vent.
,
3
(
2
), pp.
169
181
.10.1080/14733315.2004.11683912
4.
Harun
,
Z.
,
Sahari
,
M. S.
, and
Mohamad
,
T. I.
,
2014
, “
Smoke Simulation in an Underground Train Station Using Computational Fluid Dynamic
,”
Appl. Mech. Mater.
,
663
, pp.
366
372
.10.4028/www.scientific.net/AMM.663.366
5.
OECD and NEA,
2018
, “
Investigating Heat and Smoke Propagation Mechanisms in Multi-Compartment Fire Scenarios, Final Report of the PRISME Project
,” OECD and NEA, Nuclear Safety, Paris, France, Report No. NWA/CSNI/R (2017)14.
6.
U.S. NRC and SNL,
2008
, “
A Phenomena Identification and Ranking Table (PIRT) Exercise for Nuclear Power Plant Fire Modeling Applications
,” U.S. NRC and SNL, Washington DC, Report No. NUREG/CR-6978.
7.
IAEA
,
2008
, “
International Collaborative Fire Modeling Project (ICFMP), Summary of Benchmark
,” IAEA, Vienna, Austria, Report No. GRS 227.
8.
VTT and NIST
,
2013
, “
Fire Dynamics Simulator, User's Guide
,”
NIST Special Publication 1019
, 6th ed.,
National Institute of Standards and Technology
,
Gaithersburg, MA
.
9.
Siemens STAR-CCM+ CFD Software,
2018
, “STAR CCM+ Version 13.02 User Guide,” Melville, NY.
10.
OpenFOAM CFD software,
2019
, “OpenFOAM Version 1712 Documentation,” ESI Group, accessed Aug. 29, 2019, https://openfoam.com/documentation/
11.
Computational domain of MCR,
2019
, “FireFoam: Add on module to OpenFOAM,” accessed Aug. 29,
2019
, https://openfoam.org/
12.
ANSYS,
2017
, “ANSYS CFX/FLUENT, Version 19.0, Documentation,”
ANSYS
, Canonsburg, PA.
13.
ISIS CFD Fire Modelling Software, 2018, “ISIS Version 5.1.3 Documentation,” France, accessed Aug. 29, 2018, https://gforge.irsn.fr/gf/project/isis
14.
Elder
,
P.
,
2018
, “
Opportunities for Canadian Nuclear Laboratories in Support of Nuclear Safety and Regulation
,” Canadian Nuclear Laboratories CNL Federal Lab Day, Ottawa, ON, Canada, Feb. 15, accessed Aug. 29, 2019, http://nuclearsafety.gc.ca/eng/pdfs/Presentations/VP/2018/20180215-CNL-Federal-Lab-Day-Peter-Elder-eng.pdf
15.
Pan
,
X.
,
2006
, “Computational Modeling of Human and Social Behaviors for Emergency Egress Analysis,”
Ph.D. thesis, Department of Civil and Environmental Engineering
, Stanford University, Stanford, CA.
16.
NIST
,
2010
, “
A Review of Building Evacuation Models, 2nd Edition
,” NIST, Gaithersburg, MA, Report No. 1680.
17.
Thunderhead Engineering
,
2018
, “Pathfinder User Manual,”
Thunderhead Engineering
,
Manhattan, KS
.
18.
Korhonen
,
T.
,
2018
, “
Fire Dynamics Simulator With Evacuation: FDS+Evac, Technical Reference and User's Guide
,” VTT Technical Research Center of Finland, Espoo, Finland.
19.
Shalabi
,
H.
, and
Hadjisophocleous
,
G.
,
2018
, “
CANDU Fire Database
,” CNL Nucl. Rev., Canadian Nuclear Laboratories, Chalk River, ON, Canada, accessed Aug. 29, 2019, https://pubs.cnl.ca/journal/cnr
20.
Shalabi
,
H.
, and
Hadjisophocleous
,
G.
,
2018
, “
CANDU Fire Probabilistic Risk Assessment (PRA) Model
,”
CNL Nucl. Rev.
, epub.
21.
U.S. NRC and EPRI
,
2007
, “
Verification and Validation of Selected Fire Models for Nuclear Power Plant Applications
,” U.S. NRC and EPRI, Washington, DC, Report No. NUREG-1824 (EPRI 1011999).
22.
VTT and NIST
,
2013
, “
Fire Dynamics Simulator, Technical Reference Guide—Volume 1: Mathematical Model
,” NIST Special Publication, Gaithersburg, MA.
23.
PyroSim Software,
2018
, “
PyroSim
1 User Manual, Thunderhead Engineering,” Manhattan, KS.
24.
U.S. NRC and EPRI
,
2005
, “
EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities
,” U.S. NRC and EPRI, Washington, DC, Report No. NUREG/CR-6850 (EPRI 1011989).
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