Research Article
Detailed Modeling of Flat Plate Solar Collector with Vacuum Glazing
Table 1
Comparison of cover glazing physical properties.
| Properties | REF | VG1 | VG2 |
| Thickness of layers (mm) | 4 | 4-0.2-4 | 4-0.2-4 | Emissivity of surfaces (−) | 0.85/0.85 | 0.85/0.85/0.85/0.85 | 0.85/0.85/0.2/0.85 | Solar transmittance (−) | 0.92 | 0.85 | 0.79 | Thermal conductance at 20°C (W/m2⋅K) | 274.39 | 4.68 | 1.62 |
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