Proposal of Properties of Window Systems for Design and Evaluation

1. 建立了常规窗、气流窗和双层幕墙系统的热仿真模型。该模型可用于窗系统遮阳性能和隔热性能的分析。提出了窗的基本热性能及各种条件下窗热性能的实用估算方法(1)给出了标准太阳入射条件下常规窗的太阳吸热系数和太阳透射率的取值。(2)提出了不同太阳入射条件下常规窗和气流窗的太阳吸热系数和透光率的实用估算方法。(3)常规窗和气流窗对天空辐射和地面反射太阳辐射的太阳吸热系数和透射率的实用估算方法。双表皮系统的热性能分析分析了不同太阳入射条件和不同自然通风量下双表皮系统的热性能特征。

1. Development of a thermal simulation model for window systemsA simulation model was developed for conventional windows, airflow windows and double-skin systems. This model can be used for the analysis of solar shading performance and insulating performance of window systems.2. Proposal of basic thermal properties of windows and a practical estimation method of thermal properties for various conditions of windows(1) The values of solar heat gain coefficient and solar transmittance of conventional windows for the standard solar incident conditions were presented.(2) A practical estimation method of solar heat gain coefficient and transmittance of conventional windows and airflow windows for various solar incident conditions were proposed.(3) A practical estimation method of solar heat gain coefficient and transmittance of conventional windows and airflow windows for sky radiation and reflected solar radiation from ground.3. Analysis of thermal properties of double-skin systemsThe characteristics of thermal properties of double-skin systems were analyzed for various solar incident conditions and various natural ventilation rates.