Condensation inspection
| Average thickness (mm) |
Thermal conductivity (kcal/㎡h℃) |
Heat insulating materials thickness (mm) |
Heat insulating materials thermal conductivity (kcal/㎡h℃) |
convective heat transfer coefficient from outer panel (kcal/㎡h℃) |
Thermal resistance (㎡h℃/kcal) |
internal panel temperature (℃) |
Air temperature (℃) |
outer panel temperature (℃) |
Dew point temperature (℃) |
Condensation | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 0.029 | 0 | 0.021 | 7.2 | 0.380 | 15 | 20 | 18.2 | 14.4 | No | Humidity (70%) |
| 7 | 0.029 | 0 | 0.021 | 7.2 | 0.380 | 15 | 25 | 21.3 | 19.1 | No | |
| 7 | 0.029 | 0 | 0.021 | 7.2 | 0.380 | 15 | 30 | 24.5 | 24.1 | No |
- Average thickness 7mm in water pouring part
- Thermal resistivity = Panel thickness / 1000 X Thermal conductivity + Polyurethane foam thickness / 1000 x Thermal conductivity + 1 / Convective heat transfer coefficient from exterior panel
- Exterior panel temperature = ambient temperature - (ambient temperature - Panel interior panel) / Convective heat transfer coefficient from exterior panel × Thermal resistivity
- Exterior temperature > dew point temperature = No dew condensation
- Proper ventilation prevents dew condensation *Psychrometric chart