CFD Analysis for Improving Thermal Environment with Vegetation and High-albedo Materials
| Autor: | WU YU-CHIEH, 吳昱杰 |
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| Rok vydání: | 2016 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 104 Due to the urban heat island, crowded artificial builds and the lack of natural environments, the temperature in the city is higher than the surrounded villages and towns which caused citizen discomfort. To improve this situation, planting and highly reflective material are the two effective solutions to protect our citys thermal environment. This study is to analyze the numerical simulation of airflow and investigate wind environment and heat environment for a factory campus when using various scenarios of planting and highly reflective material. This study reveals that vegetation can lower air temperature of the surroundings by evapotranspiration cooling and high-albedo material can reduce the surface temperature and air temperature by reflection of solar radiation. Generally, congregate planting could drop the temperature of the surroundings about 2°C and lower the wind velocity. The reflectivity of architecture materials is around 15 percent. However, highly reflective surface can reach up to 90 percent, which can decrease solar radiation absorption to about 60 percent and reduce the temperature of the surroundings as high as 1.5°C. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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