* Runner blanket = space blanket

Thin square shape

Weight : 0.2 lbs (85g)

Dimentsion 26" * 84" (142 x 213 cm)

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 from online.