Page 203 - Materials Chemistry, Second Edition

Sustainability of (H 2 ? CH 4 ) by Anaerobic Digestion 191
Table 7 Physical and thermophysical properties of different materials
3
Insulation materials k [W/(m*K)] q (kg/m )
Polyurethane 0.03 35
Polystyrene foam 0.035 25
Cork 0.04 100
Sheep wool 0.04 28
Lime foam 0.045 100
Straw 0.058 175
Recycled paper 0.07 400
Raw clay 0.132 700

EROI
2.06
2.02
[#] 1.98
1.94

0

Fig. 10 EROI evaluation of different insulation materials considering labor for D = 4 m

EPT
10.20
10.00

9.80
[yr] 9.60

0

Fig. 11 EPT evaluation of different insulation materials considering labor for D = 4 m