Experimental Study on Downward Flame Spread of Rigid Polyurethane Foam with External Radiation

Xin Ma; Ran Tu; Yan Li Zhao; Nan Wang; Qi Yuan Xie

doi:10.4028/www.scientific.net/AMM.664.194

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 664Experimental Study on Downward Flame Spread of...

Experimental Study on Downward Flame Spread of Rigid Polyurethane Foam with External Radiation

Abstract:

Research on building insulation materials and their safety is an important topic in the field of building energy conservation. The objective of this paper is to analyze the coupling effects of the width and external radiation on the downward RPU foam flame spread characteristics. The most important flame characteristics including flame height, mass loss rate, flame spread rate were studied experimentally. The results suggest that with increasing external radiation levels, flame spread rate was larger. Under the condition of the external radiation heat flux exceeds a critical level, the RPU foam would be deformed and detached from the board when the flame spread to a certain distance. It also leads to a much higher flame height due to sufficient combustion. Additionally, the flame propagation firstly accelerated when it reaches to a certain distance and then becomes a stable subject to the preheating of the external radiation heat resource.

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Periodical:

Applied Mechanics and Materials (Volume 664)

Pages:

194-198

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.664.194

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Online since:

October 2014

Authors:

Xin Ma*, Ran Tu, Yan Li Zhao, Nan Wang, Qi Yuan Xie

Keywords:

Downward Flame Spread, External Radiation Heat Flux, RPU Foam, Width Effect

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References

[1] M. George, Thermal degradation of different fire restardant polyurethane foams. Thermochimica Acta, vol. 263 (1995), pp.59-71.

DOI: 10.1016/0040-6031(94)02386-3

Google Scholar

[2] D. K. Chattopadhyay, D. C. Webster. Thermal stability and flame retardancy of polyurethanes. Prog Polym Sci, vol. 34 (2009), pp.1068-1133.

DOI: 10.1016/j.progpolymsci.2009.06.002

Google Scholar

[3] K. C. Tsai, F. S. Wan. Upward flame spread : the width effect. In proceedings of the english symposium of IAFSS, 2005, pp.409-419.

Google Scholar

[4] K. C. Tsai. Width effect on upward flame spread. Fire Safety J, vol. 44 ( 2009), pp.962-967.

DOI: 10.1016/j.firesaf.2009.06.003

Google Scholar

[5] K. C. Tsai, D. Drysdale. Flame height correlation and upward flame spread modelling. Fire Mater, vol. 26 (2002), pp.279-287.

DOI: 10.1002/fam.809

Google Scholar

[6] K. C. Tsai, D. Drysdale. Upward flame spread: heat transfer to the unburned surface. In Proceedings of the Seventh Symposium of IAFSS, 2001 , pp.117-128.

Google Scholar

[7] Ali. S. Rangwala, S. G. Buckley, J. L Torero. Upward flame spread on a vertically oriented fuel surface: The effect of finite width. Proceedings of Combustion Institute, vol. 31(2007), pp.2607-2615.

DOI: 10.1016/j.proci.2006.07.235

Google Scholar

[8] Y. Pizzo, J. L. Consalvi. Width effects on the early stage of upward flame spread over PMMA slabs: Experimental observations. Fire Safety J, vol. 44 (2009), pp.407-414.

DOI: 10.1016/j.firesaf.2008.09.003

Google Scholar

[9] Y. Pizzo, J. L. Consalvi. Numerical analysis of the heating process in upward flame spread over thick PMMA slabs. Fire Safety J, vol. 43 (2008), pp.351-362.

DOI: 10.1016/j.firesaf.2007.10.004

Google Scholar

[10] M. Delichatsios, B. Paroz, A. Bhargava, Flammability properties for charring materials. Fire Safety J, vol. 38 (2003), pp.219-228.

DOI: 10.1016/s0379-7112(02)00080-2

Google Scholar