【摘要】 为了减少人工照明的耗电量,预测房间日光照明潜力,介绍了一种日光照明室内照度动态计算简便方法。它利用修正的Tragenza的房间平均照度模型,根据房间尺寸,窗户朝向、尺度,遮阳设施、材料反射系数、相邻建筑间相对位置,以及逐时太阳辐射数据和光热转换系数等来预测房间动态照度,进而计算日光照明潜力。通过用Visual Basic语言将该计算方法编入计算程序,对北京地区日光照明进行了实例分析,预测出5种常用遮阳装置下的建筑室内日光照明节能潜力。结果表明,该方法可以用来计算不同遮阳设施类型的窗户系统的建筑室内逐时有用日光照度,对规划设计阶段的建筑进行照明节能潜力的预测。更多还原

【Abstract】 This paper introduces a dynamic calculating method of internal illuminance.It can save artificial lighting energy consumption in buildings by predicting daylighting potential.Based on the modified Tragenza’s average room illuminance model,the daylighting potential can be predicted by inputting the data such as room dimension,orientation,glazing area,shading device,reflection factors,urban horizontal angle,hourly solar radiation and lumenance efficacy.A computer program has been coded with Visual Basic language and a simulation for a room in Beijing has been conducted with five basic shading devices.The results show that it can be used to predict the potential of daylight in the building strategic design stage.更多还原