Table 5 Boundary settings of the glass cover.

From: Numerical study on the impact of wall structure on the thermal performance of double-channel porous solar wall

Convective heat transfer coefficient (W/m2·K)

Free flow temperature (K)

External emissivity

External temperature (K)

Internal emissivity

13.68

276.55

0.94

276.55

0.85

Boundary types

Absorption rate

Transmittance

 

Visible light

Infrared

Hemispherical scattering coefficient

Visible light

Infrared

Hemispherical scattering coefficient

Translucent

0.04

0.04

0.04

0.88

0.88

0.88