* Runner blanket = space blanket

Thin square shape

material : Mylar

Weight : 0.2 lbs (85g)

32 layers are thickness 0.45mm

(a) draw a cross section of the structure. Label the thickness and material for each layer.

(b) how should the blanket be worn, or which side should face the body. Explain why.

(c) assume the inside surface temperature is 35^oC and the outside surface is 15^oC, calculate the heat loss rate in W/m² through the blanket. Look up thermal conductivity values for the materials

\begin{tabular}{ll} \hline Product Dimensions & 71"L142W \\ \hline Pattern & Solid \\ \hline Size & Twin \\ \hline Fabric Type & Mylar \\ \hline Fabric Warmth Description & Lightweight \\ \hline Sport Type & Camping, Hiking \\ \hline Item Package Dimensions LWH & 3.22.51.5 inches \\ \hline \end{tabular}