Study on the Influence of Retro-Reflective Coatings on the Thermal Environment of Building Blocks

学生名:王 京

研究テーマ:Study on the Influence of Retro-Reflective Coatings on the Thermal Environment of Building Blocks

(再帰反射材料が建築物群の温熱環境に及ぼす影響に関する研究)

入学年月:2020.10

修了年月:2023.09

取得学位:博士（工学）

論文概要: The retro-reflective coatings can reflect the incoming solar radiation back along the incidence direction. Compared with the high reflective coatings with the optical property of diffuse reflection, the coating has greater potential in reducing the building surface temperature, saving energy, and alleviating the urban heat island effect. Therefore, the scientific problem of the influence of the retro-reflective coatings on the regional thermal environment was put forward. On the one hand, the optical properties of the coatings, including solar reflectance and retro-reflectance, were studied. On the other hand, retro-reflective coatings and high reflective coatings were applied on the outer surface of the model, respectively, the effect of two coatings on the thermal environment of regional buildings were studied by monitoring the regional albedos, wall temperatures and air temperatures. In addition, the influence of building forms on the thermal contribution of coatings and the thermal performance of coatings in different seasons were further studied. Finally, based on EnergyPlus software, the influence of building surface reflectance on building energy load of an enclosed educational building in Qingdao was simulated. The main works and results could be summarized as follows:
In Chapter 1, the background and purpose of the study were elaborated.
In Chapter 2, the literature review of the application of RR-coatings in buildings were made.
In Chapter 3, the methodology and performance evaluation index were studied.
In Chapter 4, study on spectral properties of retro-reflective coatings.
In Chapter 5, an experimental comparison on regional thermal environment of the high-density enclosed building groups with retro-reflective and high-reflective coatings were made.
In Chapter 6, the influence of the building enclosed forms on thermal contribution of retro-reflective and high-reflective coatings were studied.
In Chapter 7, an experimental evaluation on thermal contribution of retro-reflective and high-reflective coatings in an enclosed building in summer and winter were made.
In Chapter 8, the effect of building surface retro-reflectivity on energy load and CO2 emission of an enclosed building.
In Chapter 9, the conclusion and prospect were drawn.