Abstract
The performance-based standard for fire protection was first proposed for light water reactor electric generating plants in NFPA-805. The zone model is considered as a main option for fire safety analysis in nuclear power plant. Cable fire is one of the most common hazards in nuclear power plant. The structure of multilayer cable trays fire is a challenge for simulation by zone model. At the same time, the mechanical ventilation has significant effects on the fire process. Therefore, the focus of this paper is to investigate the reliability of zone model software simulating the multilayer cable trays fire under mechanical ventilation. Fire experiments of four-layer cable trays were conducted in a confined room with mechanical ventilation. The mass loss rate of cable trays, the ceiling jet temperature, and the vertical temperature distribution in the room were recorded during the cable burning. According to the measured vertical temperature profile under mechanical ventilation, it is found that the fire room can be divided into upper hot layer and lower cool layer, which is conformed to the basic assumption for two-zone model. Therefore, the zone fire model CFAST (Consolidated Model of Fire Growth and Smoke Transport), was used to simulate the multilayer cable trays fire under mechanical ventilation. Comparing the predicted ceiling jet and upper layer temperatures with experimental data, it is shown that CFAST has good prediction on multilayer cable trays fire under mechanical ventilation. By setting each layer of cable tray as one fire source, CFAST can catch the burning characteristics of multiple-layer cable tray fire.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
K. McGrattan, A. Lock, N. Marsh, etc. Cable Heat Release, Ignition, and Spread in Tray Installations During Fire (CHRISTIFIRE) Volume 1: Horizontal Trays Draft Report for Comment[R]. NUREG/CR-7010, U. S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Rockville, MD, 2010.
S.P. Nowlen, F.J. Wyant. The Cable Response to Live Fire(CAROLFIRE) Project: Advancing the Cable Fire Response Knowledge base. CD- ROM, American Nuclear Society, LaGrange Park, IL (2008). ANS PSA 2008 Topical Meeting–Challenges to PSA during the Nuclear Renaissance Knoxville, Tennessee, 7–11, 2008.
M.L. Janssens, S.L. Turner, S. Tsuchino. THIEF Model Evaluation for Cables Used in Nuclear Plants in Japan. Procedia Engineering 62 (2013) 829–836.
Y.H. Lee, J.H. Kim, J.E. Yang. Application of the CFAST Zone Model to the Fire PSA. Nuclear Engineering and Design, 240(2010):3571–3576.
Addenda to ASME/ANS RA-S–2008 Standard for Level 1/Large Early Release Frequency Probabilistic Risk Assessment for Nuclear Power Plant Applications. The American Society of Mechanical Engineers, 2009.
S. Hostikka, O.K. Rahkonen. Probabilistic Simulation of Fire Scenarios. Nuclear Engineering and Design, 224(2003):301–311.
J.H. Klote. The ASHRAE Design Manual for Smoke Control. Fire Safety Journal, 7 (1984) 93–98.
J.H. Klote. A Computer Program for Analysis of Smoke Control Systems. NBSIR 82-2512, National Bureau of Standards, Washington, DC, June 1982.
L. Yi, W.K. Chow, Y.Z. Li, R. Huo. A Simple Two-layer Zone Model on Mechanical Exhaust in An Atrium. Building and Environment 40 (2005) 869–880.
V. Betta, F. Cascetta, M. Musto, G. Rotondo. Fluid Dynamic Performances of Traditional and Alternative Jet Fans in Tunnel Longitudinal Ventilation Systems. Tunneling and Underground Space Technology 25 (2010) 415–422.
J. Wahlqvist n, P. V. Hees. Validation of FDS for Large-scale Well Confined Mechanically Ventilated Fire Scenarios with Emphasis on Predicting Ventilation System Behavior. Fire Safety Journal 62 (2013) 102–114.
Y.H Lee, J.H.O Kim, J.E. Yang. Application of the CFAST Zone Model to the Fire PSA[J]. Nuclear Engineering and Design, 240(2010):3571–3576.
M.H. Salley, R.P. Kassawara. Verification and Validation of Selected Fire Models for Nuclear Power Plant Applications Volume 5: Consolidated Fire Growth and Smoke Transport Model (CFAST)[R]. NUREG 1824, U. S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Rockville, MD, 2007.
L. Audouin, L. Chandra, J. L. Consalvi. Quantifying Differences Between Computational Results and Measurements in the Case of a Large-scale Well-Confined Fire Scenario. Nuclear Engineering and Design, 241(2011) 18–31.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer Science+Business Media Singapore
About this paper
Cite this paper
Huang, X., Wu, T., Bi, K., Liu, X., Jiang, X. (2017). Experimental and Numerical Simulation Study on Multilayer Cable Trays Fire Under Mechanically Ventilated Conditions. In: Jiang, H. (eds) Proceedings of The 20th Pacific Basin Nuclear Conference. PBNC 2016. Springer, Singapore. https://doi.org/10.1007/978-981-10-2311-8_29
Download citation
DOI: https://doi.org/10.1007/978-981-10-2311-8_29
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-2310-1
Online ISBN: 978-981-10-2311-8
eBook Packages: EnergyEnergy (R0)