b'DeltaDualCore Panel Awning Systems A= aggregate cross-sectional area of steel rod along the heat path (m 2 )c= specific heat (J/kgK) k= conductivity (W/mK) T= temperature (C) t= time (s) x= distance (m) 3 = density (kg/m ) h= convective heat transfer coefficient (W/m 2 /K)= emissivity value = Stefan-Boltzmann (5.67 x 10 -8W/m 2 /K 4 ) prefix: = small incrementsubscripts: s = metal (steel) O = node at which temperature is being determined n-1 = previous time step of node O n+1 = next time step of node OUsing a spreadsheet, the temperature distribution through the steel rod was solved. The results are given in Figure 5-2. The thermal properties adopted are given in Table 5-1. More detailed explanation for explicit finite difference analysis of heat transfer can be found in Cengel et al (2011).Table 5-1.Material thermal properties (Drysdale 1999) Copper Conductivity, k (W/mK)45.8 Specific heat at constant pressure, c (J/kgK)460(kg/m 3Density )7850 Emissivity0.7A.2Results & Conclusion The temperature distribution through the steel rod after 60 minutes of exposure to standard fire is given in Figure 5-2. The results indicate that conductive heat attenuates quickly along the length of the steel rod and has no significant impact on the steel temperatures at a distance over 900 mm from the site boundary. Thus, conduction is not considered to present a dominant mechanism for heat transfer to the combustible component of the DeltaDualCore roof system. Revision 1-1141'