6. Fire brick wall K= 1.12 W/mK Assume movable wall to be: Fire brick wall K= 1.12 W/mK Quartz window K= 0.07 W/mK Inside Temperature = 1100 C Outside Temperature = 121 C q
7.
8.
9. 25.4mm T 1 = 121.1 C T 1 = 26.7 C K steel= 45 W/(m-K) K insulation = 0.182 2” Sch 40: Outside Diameter = 2.375 in. Inside Diameter = 2.067 in. Thickness = 0.154 in.
10. D 1 = 2.375*0.0254 = 0.060325 m D 2 = 0.060325+2*0.0254 = 0.111125 m