This study documents and outlines a part of the process used in the daylighting performance analysis of a typical classroom design for a proposed K-12 school in Greensburg, KS. The computer simulation program DAYSIM was used for the optimization process because of its ability to compute climate based annual daylight availability and report the results in the form of dynamic daylight metrics such as Daylight Autonomy (DA%), Useful Daylight Illuminances (UDI) and Daylight Saturation Percentage (DSP%). A methodology was developed to utilize BIM geometry from Autodesk's Revit Architecture software with very little intervention. Since there was no established process for utilizing BIM geometry with DAYSIM, some experimentation was involved. But the overall efficiency and accuracy of the modeling process was greatly improved, compared to recreating 3D geometry from scratch. The focus was on achieving a good glare-free daylighting design and also meeting the LEED rating system's EQ credit 8.1 for daylighting, which currently relies on snapshot conditions like Daylight Factor and Summer Solstice as opposed to annual availability. The resulting classroom space had a DSP of 82%, UDI (10 fc - 200 fc) of 85%, DA of 85% and a Daylight Factor of 2.5 (all averages at work plane level).
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机译：这项研究文件，概述了一个典型的课堂设计，在格林斯堡，KS提出的K-12学校的采光性能分析中使用的过程的一部分。使用了计算机的仿真程序DAYSIM用于优化过程的，因为它基于年度日光可用性能力计算气候和报告在动态日光度量，例如日光自治（DA％），有用的日光照度（UDI）和日光的形式的结果饱和度的百分比（DSP％）。一个方法被开发利用来自Autodesk的Revit Architecture软件软件BIM几何很少干预。由于对利用BIM几何与DAYSIM是不成立过程中，一些实验参与。但建模过程的整体效率和准确率大大提高，相比于从头开始重建三维几何。重点是实现良好的无眩光的采光设计，也符合LEED评级系统的EQ信贷8.1采光，目前依靠快照条件像日光因子和夏至，而不是每年的可用性。将所得的教室空间有82％的DSP，UDI - 85％（10 FC 200，FC），85％的DA和2.5的日光系数（在工作平面级别的所有平均值）。
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