研究目的
To discuss the problems of the design of window size in residential buildings and the consequences of the new median criterion as well as the required interior illuminance in absolute lux values.
研究成果
The study showed that the new CEN standard's criteria for daylight evaluation could lead to overestimated window sizes in residential buildings. A possible solution is to reduce the reference plane to avoid such overestimation.
研究不足
The study was limited to a typical room with one side window and used a specific computer program for daylighting calculations. The results may not be applicable to all residential buildings or daylighting conditions.
1：Experimental Design and Method Selection:
The study evaluates daylighting in residential buildings using the Daylight Factor criterion and the proposed European standard FprEN
2：Sample Selection and Data Sources:
170 A common habitable room in a residential building located in a low polluted urban area was investigated.
3：List of Experimental Equipment and Materials:
The study used a computer program ASTRA Wdls V
4：130 for daylighting calculations. Experimental Procedures and Operational Workflow:
The study involved testing the Daylight Factor criterion, studying the window size to comply with the new criterion, and testing the fraction of the reference plane with sufficient daylight provision.
5：Data Analysis Methods:
The study analyzed the distribution of Daylight Factor and Target Daylight Factor on the reference plane.
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