Pm3110 Unit 6 Lab Report

Application of ASS+ on the real building was monitored from September 8 to October 3. Only data acquired during clear days (Figure 16) with similar thermal site conditions (Figure 17) were used. Data recorded during rainy days were not included.

The ratio of the Ei to the outdoor illuminance at shaded area (Eo) from the 4 selected day of monitoring results (Figure 16) showed that ASS performed well following the performance of ADS. The Ei of the building equipped with ASS at noon decreased. The zenithal light beam falling on the collector passed through cavities rather than reflected to the clerestory. Reflected light from the zenith that should contribute to the Ei at noon reduced significantly in accordance to the percentage of the cavity area. This statement was supported by the comparison between the Ei of ADS and ASS at 10:30 as shown in Figure 16. However, at low sun

The wind speed measured during the ADS installation tend to be lower than the wind speed measured during the installation of the other fenestrations. However, there were only slight differences in measured To and Rho in Figure 17. The average air temperature, relative humidity, and air velocity deviations for every 30 min were less than 1.4oC, 7.2%, and 0.7 m/s respectively. This study prioritized the similarity of recorded To more than global solar radiation because the instantaneous air temperature expresses the effect of solar radiation, wind conditions, and other climate elements for certain period. In addition, it also takes into account the thermal properties of the medium and surrounding materials. The external heat needed at least 2.88 hours to pass through the test building walls via conductive transfer mode. Meanwhile, the instantaneous solar radiation can fluctuate depending on the sky