In Topic 8.B.3 we estimated heat flow from a glass-door fire screen. If the screen were designed to be inclined by @ = 15 degrees, the length would need to be increased to L/coso. What would be the new Ra ? Below, report the percent change in Ra. That is (Rau, new/Ral, old-1) 100%. 3. Example 9.2. A glass-door firescreen (L=0.71 m x 1.02 m) keeps smoke out of room (T=23 C). If the glass is Ts = 232 C, what is conv? Glass panel Height, L -0.71 m Width, W - 1.02 m fluid properties at T = 2 (23+ 232) = zair Qulescent alr 7.-23C k= VE a = Pr = B= Iconi = Fire 232C lminar or turbulent model