Abstract
Numerical simulations capable of predicting the behavior of fire in the built environment are of increasing importance in environment design and safety analysis. The study of polyether polyurethane foam (PUF) is important as it is one of the most abundant materials present in the built environment and poses significant risk of fire and toxic gas. Several attempts to develop pyrolysis models for PUF have been made over the past decade with limited accuracy in replicating experimental result. Observations of PUF decomposition has led to a proposed model describing its kinetics, thermo-physical properties and fuel representation in a computational fluid dynamics (CFD) environment. The proposed model describes the physical observations and addresses many of the limitations of previous models. The model is validated with an array cone calorimeter experiments on different size specimens for two types of PUF. The purpose of this paper is to further improve the PUF pyrolysis model so that it can be applied in larger simulations of varying geometrical fuel arrangements.
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References
Bwalya A, Carpenter D, Kanabus-Kaminska M, Lougheed G, Su J, et al. (2006). Development of a Fuel Package for Use in the Fire Performance of Houses Project. NRC-IRC Research Report: IRC-RR-207.
Bwalya A, Lougheed G, Kashef A, Saber H (2011). Survey results of combustible contents and floor areas in Canadian multi-family dwellings. Fire Technology, 47: 1121–1140.
Drysdale D (2011). An Introduction to Fire Dynamics. John Wiley & Sons.
Ezinwa JU (2009). Modeling full-scale fire test behavoir of polyurethane foams using cone calorimeter data. Master Thesis, University of Saskatchewan, Canada.
Krämer RH, Zammarano M, Linteris G T, Gedde UW, Gilman JW (2010). Heat release and structural collapse of flexible polyurethane foam. Polymer Degradation and Stability, 95: 1115–1122.
Lohman RJ (2005). Polyurethane in Home Construction. The ChemQuest Group, Inc., Cincinnati, Ohio, USA.
Matala A (2013). Methods and applications of pyrolysis modelling for polymeric materials. VTT Technical Research Centre of Finland.
McGrattan K, McDermott R, Hostikka S, Floyd J (2015). Fire Dynamics Simulator, User’s Guide. NIST Special Publication, 1019(5).
NFPA (2013). Upholstered Furniture Flammability. Quincy, MA, USA: National Fire Protection Association.
Pau D (2013). A Comparative Study on Combustion Behaviours of Polyurethane Foams with Numerical Simulations using Pyrolysis Models. PhD Thesis, University of Canterbury, New Zealand.
Pau D, Fleischmann C, Spearpoint M, Li K (2013). Determination of kinetic properties of polyurethane foam decomposition for pyrolysis modelling. Journal of Fire Sciences, 31(4), 356–384.
Pau D, Fleischmann C, Spearpoint M, Li K (2014a). Sensitivity of heat of reaction for polyurethane foams. Fire Safety Science, 11: 179–192.
Pau D, Fleischmann C, Spearpoint M, Li K (2014b). Thermophysical properties of polyurethane foams and their melts. Fire and Materials, 38: 433–450.
Pitts WM (2011). Applied heat flux distribution and time response effects on cone calorimeter characterization of a commercial flexible polyurethane foam. Fire Technology, 50: 635–672.
Pitts WM (2014). Role of two stage pyrolysis in fire growth on flexible polyurethane foam slabs. Fire and Materials, 38: 323–338.
Prasad K (2009). Numerical Simulation of Fire Spread on Polyurethane Foam Slabs. In: Proceedings of the 11th International Conference on Fire And Materials, San Francisco, CA, USA, pp. 697–708.
Robson L (2014). Scalability of Cone Calorimter Test results for the prediction of full scale fire behavior of polyurethane foam. Master Thesis, University of Saskatchewan, Canada.
Robson L, Torvi D, Obach M, Weckman E (2016). Effects of variations in incident heat flux when using cone calorimeter test data for prediction of full-scale heat release rates of polyurethane foam. Fire and Materials, 40: 89–113.
Snegirev A, Talalov V, Stepanov V, Harris J (2012). A new model to predict multi-stage pyrolysis of flammable materials in standard fire tests. In: Journal of Physics: Conference Series, Vol. 395, No. 1, p. 012012. IOP Publishing.
Valencia LB (2009). Experimental and numerical investigation of the thermal de-composition of materials at three scales: Application to polyether polyurethane foam used in upholstered furniture. École Nationale Supérieure de Mécanique et d'Aérotechnique, PhD Thesis, Université de Poitiers, France.
Wilson M, Dlugogorski B, Kennedy E (2003). Uniformity of radiant heat fluxes in cone calorimeter. Fire Safety Science, 7: 815–826.
Zhang H, Fang W-Z, Li Y-M, Tao W-Q (2017). Experimental study of the thermal conductivity of polyurethane foams. Applied Thermal Engineering, 115: 528–538.
Acknowledgements
This work is partially funded by Natural Sciences and Engineering Research Council of Canada, discovery Grant (NSERC DG, CPI#1130083) and Hubei Chutian Scholars Program, China. The development of this study on polyether polyurethane foam was reliant on generous and valuable information provided by the National Research Council of Canada (NRC) and discussions with Dr. Alex Bwalya. The sharing of information and strategies in modeling PUF in FDS were critiqued through The Google Discussion Group for Fire Dynamics Simulator and Dr. Kuldeep Prasad of NIST, who were both instrumental in refining strategies for implementation of PUF characteristics.
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McKeen, P., Liao, Z. Pyrolysis model for predicting the fire behavior of flexible polyurethane foam. Build. Simul. 12, 337–345 (2019). https://doi.org/10.1007/s12273-018-0484-2
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DOI: https://doi.org/10.1007/s12273-018-0484-2