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Table 2 Experimental results of 3D thermal modeling and environmental measurements

From: 3D Visualization of thermal resistance and condensation problems using infrared thermography for building energy diagnostics

Item Metrics Case #1 Case #2
3D thermal modeling # of 2D Thermal Images 446 429
# of 3D Thermal Points 3,042,350 2,838,478
# of Vertices in Baseline Mesh Model (wall) 18,964 13,771
# of Vertices excluding static occlusions in Mesh Model by using Threshold (wall) 17,297 7,740
Computational Time for 3D Thermal Modeling 2hr 30min 2hr 21min
Environmental measurements Outside air temperature (°C) 5 3
Indoor air temperature (°C) 28 24
Dew point temperature (°C) 13.15 11.64
Relative humidity (%) 40 46
Calculated metrics in 3D Error on registration (mm) 8.69 9.30
Average (µ) of R-values of Wall (m2K/W) 0.753 0.833
Standard Deviation (σ) of R-values of Wall 0.10207 0.14463
Range of actual R-values by considering 95% confidence µ 1.96 σ / n , μ + 1.96 σ / n (0.75168, 0.75472) (0.82986, 0.83631)
Average (μ) of R-values of Window (m2K/W) 0.260 0.274
Standard Deviation (σ) of R-values of Window 0.00173 0.00211
Range of actual R-values by considering 95% confidence μ 1.96 σ / n , μ + 1.96 σ / n (0.26011, 0.26027) (0.2737, 0.27389)