Upward Flame Spread: Heat Transfer To The Unburned Surface

An experimental programme was intended to analyse the heat feedback from a spreading wall fire to its unburned surface, one of the two important parameters determining its spread rate. The heat flux from PMMA fires was observed to be higher than those from previous investigations as plotted with normalised flame height (X/Xf). However, very good consistency was performed with another study as a parameter " wo q& is introduced with heat flux plotted in another normalisation. The averaged heat flux, an important parameter used in upward flame spread modelling, was discussed and suggested to be around 15–20 kW/m. This is much lower than the commonly accepted 25-30 kW/m.

[1]  M. Delichatsios,et al.  An Upward Fire Spread And Growth Simulation , 1991 .

[2]  J. Quintiere,et al.  Wall Flames and Implications for Upward Flame Spread , 1986 .

[3]  G. M. Faeth,et al.  Turbulent wall fires , 1979 .

[4]  Forman A. Williams,et al.  Upward Turbulent Flame Spread , 1986 .

[5]  A. Carlos Fernandez-Pello,et al.  Controlling Mechanisms of Flame Spread , 1982 .

[6]  Ellen G. Brehob,et al.  Numerical model of upward flame spread on practical wall materials , 2001 .

[7]  R. B. Williamson,et al.  Flame Spread Evaluation For Thin Interior Finish Materials , 1991 .

[8]  Yuji Hasemi.  THERMAL MODELING OF UPWARD WALL FLAME SPREAD. , 1986 .

[9]  Ching Hua Lee,et al.  Ignitor and Thickness Effects on Upward Flame Spread , 1998 .

[10]  W. J. Parker,et al.  Upward Flame Spread On Wooden Surface Products: Experiments And Numerical Modelling , 1997 .

[11]  Yuji Hasemi,et al.  Experimental Wall Flame Heat Transfer Correlations for the Analysis of Upward Wall Flame Spread , 1984 .

[12]  G. M. Faeth,et al.  Heat Transfer and Mean Structure of a Turbulent Thermal Plume Along a Vertical Isothermal Wall , 1978 .

[13]  Michael A. DELlCHATSIOS.  Flame Heights in Turbulent Wall Fires with Significant Flame Radiation , 1984 .

[14]  C. Qian,et al.  An Empirical Model For Upward Flame Spread Over Vertical Flat And Corner Walls , 1997 .

[15]  Dougal Drysdale,et al.  Numerical modelling of early flame spread in warehouse fires , 1995 .

[16]  A. Fernandez-Pello,et al.  Controlling Mechanisms of Flame Spread , 1983 .

[17]  Y. Chen,et al.  Flame Spread On Charring Materials: Numerical Predictions And Critical Conditions , 1994 .

[18]  M. M. Delichatsios,et al.  Upward Flame Spread And Critical Conditions For Pe/pvc Cables In A Tray Configuration , 1994 .