活動式外遮陽對室內溫熱環境實證之研究

The Study of the Effect of Active Shading Device on Indoor Thermal Environment

林成翰(Chen-Han Lin)

指導教授 ： 周鼎金

國立臺北科技大學/設計學院/建築與都市設計研究所/碩士(2008年)

摘要

目前在國內遮蔽率經常依不同遮陽板型式，以其遮擋面積的遮蔽率取決室內總熱容量的多寡，但皆具其不同的評估標準，因此並無法有效得知遮蔽太陽輻射實際熱得多寡，因而對外遮陽板遮蔽率上亦無法趨近事實而呈現。
故本研究選擇大溪地區較空曠之基地測量實驗屋，在其室外開口部安裝活動式水平百葉外遮陽板，探討外遮陽板角度、半遮蔽與全遮蔽百葉對室內溫熱環境的影響，進行全尺度實證研究，並以連續紀錄相關物理數據值進行研究分析，藉以提供未來設計者參考，亦期能達成人類追求舒適生存環境的永續發展目標。
本研究經實際測試後獲得以下的成果：

一、 於冬、夏兩季節實驗中，冬季白天室內舒適時間最少有6小時，夏季天室內舒適時間最少有4小時，證實在鄰近桃園大溪鎮之建築物，若裝設此型式之活動式百葉外遮陽板，其在室內溫熱環境與舒適性有明顯呈現效能。
二、 在本實驗設計之組合屋，A室實驗屋屬屋中屋型式，周邊壁體使用複合式隔熱板材組裝，無論是冬、夏時節實驗，可明顯發現A室實驗屋室內溫度、壁體表面溫度、周邊環場溫度等，所使用複合式隔熱板材已發揮其隔熱性，冬季具有保溫作用而夏季更具隔熱性能。

關鍵字

遮陽板 ； 全尺度實驗 ； 溫熱環境

並列摘要

Currently in Taiwan, depending on the type of the sunscreen, the shielding rate determines the total indoor heat capacity. But as there are different assessment criteria, it is impossible to know exactly how much heat of solar radiation is shielded. As a result, the external sunscreen’s shielding rate cannot be completely presented.
Consequently, this study selected an open area at Dasi, Taoyuan, Taiwan, to measure an experiment house. External mobile horizontal louvered sunscreens were mounted at openings outside the house. The purpose was to explore the effect of external sunscreen angles, half-shielding and full-shielding louvers on indoor temperatures. A full-scale empirical study was conducted, and relevant physical data was documented consecutively for analysis. The results are expected to serve as a reference for future designers in order to meet the goal of creating a comfortable survival environment for humans.
The results are as follows:
1. Experiments show that there was a comfortable period of at least 6 hours indoors during daytime in the winter and that there was a comfortable period of at least 4 hours inside the house during daytime in the summer. This suggests that if this type of external mobile louvered sunscreen is mounted on buildings at Dasi town, Taoyuan, an appreciable difference would be felt in indoor temperature and comfort.
2. In the combination house designed for this experiment, Room A was a “house inside a house.” Its surrounding walls were made of composite heat insulation plate. Experiments in both winter and summer show that the plates functioned effectively in room temperature, wall surface temperature, surrounding temperature, etc., and that they detained temperature in the winter and shielded temperature in the summer.

並列關鍵字

shading device ； experimental investigation ； thermal environment

參考文獻

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