| Summary: | 碩士 === 樹德科技大學 === 建築與古蹟維護研究所 === 96 === This study aimed to investigate the impact of indoor thermal environment of commercial buildings in Kaohsiung area. Four individual cases were selected for field measurement and investigation based on measured data. The data measured under different variables, such as different annexations and changes of building openings, were used for comparing the impacts of indoor thermal environment of different variables on human body thermal comfort.
The measured data were used to discuss evaluation factors for thermal comfort zone (temperature, humidity, air speed), PMV of thermal comfort, and PPD of thermal comfort based on the comfort zone and thermal comfort index theories referred by this study. Besides understanding more about the existing circumstance of indoor thermal environment of commercial buildings, this study also probed into the impact of variables, including annexations on indoor thermal environment, and established benchmark data of indoor thermal environment of commercial buildings in Kaohsiung area, in order to provide a relatively complete and scientific reference data for building designs with orientation of "sustainable buildings, healthful comfort".
This research results are as follows:
1. Analysis of indoor thermal environment characteristics with different variables:
1) From the measured cases in this study, the measured value of temperature of cases without annexations in the actual measurement are mostly within the comfort zone, the measured value of temperature is a bit higher than the comfort zone in cases with annexations. Those in relative humidity without annexations and indoor relative humidity with annexations are kept within a comfort zone between 58.6~69.4 %.
2) As for air speed, in four model testing environments, the indoor mean air speed is kept within the comfort baseline value, but indoors with annexations mostly show zero-wind conditions, so that people feel fuggy in the indoor space; the PMV of cases without annexations is between 0.1 and 1.5, and the PMV of cases with annexations is between 1.1 and 1.7, cases with annexations are hotter than those without annexations; the percentage of dissatisfaction of cases without annexations is between 5.6~48.8%, and that of cases without annexations is between 32.6~62.4%. Therefore, the reactions of cases with annexations to PMV and PPD index are a bit higher than the standard value.
2. Modal analysis of indoor vertical thermal field distribution with different variables:
1) Regarding the vertical temperature change of indoor space with or without annexations in a room with a western exposure, the indoor temperature in the afternoon is higher than that in the morning, the temperature of room with annexations is obviously higher than that of room without annexations all day, and the indoor thermal environment without annexations is comfortable.
2) As for the vertical temperature change of indoor space with annexations in a room with a western exposure, the maximum indoor mean vertical temperature is 27.2℃ in the morning; as for the vertical temperature change of indoor space without annexations in a room with a western exposure, the maximum indoor mean vertical temperature is 26.4℃ in the morning; for the vertical temperature change of indoor space with annexations in a room with a western exposure, the maximum indoor mean vertical temperature is 27.7℃ in the afternoon; and for the vertical temperature change of indoor space without annexations in a room with a western exposure, the maximum indoor mean vertical temperature is 26.8℃ in the afternoon.
|
|---|
