Table 4 Thermal conductivity and emissivity of different materials.

From: Numerical simulation of heat dissipation characteristics in PWR high-pressure coolant pipes during cold shutdown

Material

ultrafine glass fiber wool

glass wool

polypropylene foam

rock wool

polyvinyl chloride foam

asbestos

Effective thermal conductivity

(W/(m·K))

0.022

0.033

0.036

0.040

0.044

0.046

Emissivity

0.73

0.75

0.91

0.78

0.90

0.77

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