水平活動式導光遮陽版改善住宿類建築室內天然光環境之研究

The improvement of natural light in house building with the adjustable horizontal light guide plate

朱瓚鴻(Tsan-Hung Chu)

指導教授 ： 何友鋒

朝陽科技大學/設計學院/建築系建築及都市設計碩博士班/碩士(2014年)

摘要

台灣天然資源蘊藏貧乏，98%能源仰賴進口，「節能減碳」的觀念已成為現代環境設計中之主流。據（經濟部能源局，2013）統計，照明用電占住宿類建築整體用電約27.67%。因此，若能有效利用導光遮陽板，遮蔽強烈太陽直射光同時引進天然光源，不但可以改善住宿類建築室內天然光環境品質，亦也減少能源的消耗。本研究利用朝陽科技大學「天空圓頂實驗室」人造天空圓頂配合國際照明委員會（CIE）所提出15種天空情境參數及建築16方位，以1：4等比例水平活動式導光遮陽板縮尺模型，實測台灣中部地區冬至時期全天空漫射晝光狀態並收集室內光環境物理量數據，分析室內均齊度、室內平均照度及晝光率。數據顯示導光角越高室內平均照度越高、均齊度及晝光率越低，致使室內天然光環境無法達到標準。有鑑於此，本研究首先利用SPSS探討單一方位中室內平均照度與導光角、天空情境、室外照度值、天花板反射率、牆壁反射率及地板反射率之間關係，此迴歸模式所呈現的R2值最大為東方（0.921），最小為南南西方（0.787），驗證的照度值與實驗數據對照整體差距-27%~+11%，最後利用虛擬變項的方式帶入方位、天空情境及剔除室內材質反射率等，導出整體迴歸方程式，並與國家標準（CNS）標準照度進行比對分析。經由研究結果顯示，水平活動式導光遮陽板於天空情境5至天空情境15部分方位可使室內平均照度值達到300至750 lux 達到CNS起居間規範要求，其餘天空情境1至天空情境4照度值普遍偏低則必須開啟人工照明設施。因此，釐清各組合型式於各方位面向之適宜性，及建構台灣中部地區住宿類建築室內平均照度值多元迴歸方程式，以預測最適合該地區環境之室內天然採光照度值。

關鍵字

導光角 ； 國際照明委員會 ； 多元迴歸方程式 ； 人造天空圓頂 ； 導光遮陽板

並列摘要

Taiwan is deficient in natural resource reserves, and 98% of its energy relies on importation. Hence, energy saving and carbon reduction has become the main environmental trend in Taiwan. According to the statistics of the Bureau of Energy, Ministry of Economic Affairs, in 2013, by the building use classification, the lighting power consumption accounts for 27.67% of the total power consumption of residential buildings. Therefore, if the light guide plate can be utilized effectively to introduce the natural light source, while blocking the strong direct sunlight, it can improve the quality of indoor natural light environment of the buildings, but also reduce the energy consumption. In this study, the sky diffuse daylight status in central Taiwan during the winter solstice was measured and the physical quantity data of the indoor light environment was collected to analyze the indoor uniformity, average indoor illumination and daylight rate. This study adopted the 1:4 equal-proportional adjustable horizontal light guide plate scale model by utilizing the sky dome of the “Sky Dome Laboratory” of Chaoyang University of Technology (CYUT) with the 15 kinds of sky scenario parameters and 16 building orientations proposed by the International Commission on Illumination (CIE). The data showed that when the light guiding angle has a larger angle, the average indoor illumination is high, and the uniformity and daylight rate are low, thus resulting in the failure of the indoor natural light environment to meet the standards. In this study, the SPSS was used to explore the relationship between the average indoor illumination and the light guiding angle, sky scenario, outdoor illumination value, ceiling reflectance, wall reflectance and floor reflectance. The maximum R2 value presented in the overall regression equation was the east (0.921) and that of the minimum was the south-south-west (0.787) and the illumination value obtained by the regression calculation had an overall gap of -27%~+6%,and the use of dummy variable way into position, sky scenarios and eliminate indoor material reflectivity, calculus overall regression equation .The experimental data were compared with the standard illumination of the Chinese National Standards (CNS). The results showed that the adjustable horizontal light guide plates in some orientations in the sky scenarios 5 to 15 can make the average indoor illumination value reach the CNS living room standard requirement of 300-750 luxs. In the rest sky scenarios of 1 to 4, the illumination values are generally low where the artificial lighting facilities must be turned on. Therefore, the suitability of various combination patterns to the orientations is cleared up and the multiple regression equation for the average indoor illumination value of the house building in central Taiwan is established, in order to predict the indoor lighting illumination value most suitable for the regional environment concerned. The findings can help designers to predict and simulate the average indoor illumination value during the daytime, thus achieving the target of energy conservation and carbon emission reduction.

並列關鍵字

Light Guiding angle ； International Commission on Illumination (CIE) ； Multiple Regression Analysis ； Sky Dome ； Light Guide Plat

參考文獻

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