Thermal Insulation of Interior Wood-based Composite Wall in the Reinforced Concrete House

木質內裝組合壁體對混凝土構造屋之隔熱效能

廖志中(Chih-Chung Liao) ； 王松永(Song-Yung Wang)

《林產工業》 21卷3期 (2002/09) Pp. 167-179

https://doi.org/10.6561/FPI.2002.21(3).3

摘要

本研究係探討木質內裝組合壁體之隔熱性及各日照方向壁體間熱流動之狀態，並將影響室內熱環境的幾項因子如日射量、熱流量、室外溫度、室外綜合溫度等之相互關係作一綜合評價，得到次述結果。1. 木材內裝屋由於木質壁板產生的隔熱效能，其屋頂全日累積流入室內之總熱流量約僅為無內裝屋屋頂的63~70%。2. 在炎熱的夏季使用空調設備會提高室內與室外的溫差，相對的亦會增加日射能往室內流入的速率及總量。3. 利用70%遮蔽率的外掛式百葉窗，可明顯降低經由窗戶流入室內之熱量高達90%。4. 由於混凝土壁體的熱容量大，使試驗屋內外壁溫差達最高值之時間與熱流量最大值之時段產生約3小時的延遲效應。5. 在三種不同條件下，由影響室內熱環境各因子相互間之關係均可看出木材內裝屋之隔熱效果明顯優於無內裝屋，代表各關係間之直線迴歸式或可提供作為建築隔熱設計之參考。

關鍵字

隔熱效能 ； 日射能 ； 熱流量 ； 室外綜合溫度

並列摘要

The main propose of this study was to investigate the thermal insulation of wood material and polystyrene foam (Ps foam) and heat flow conditions of all kinds of walls. The interior thermal factors, such as solar irradiation, heat flux, external temperature, and outdoor resultant temperature were also evaluated in this study. The experimental results were summarized as follows: 1. The maximum heat flux flowing into the house with wooden interior decoration material was from the roof. The accumulated heat flux of roof was only about 63-70% of that without wooden interior decoration materials in the summer. 2. In the summer, utilization of air conditioner would increase the temperature difference between indoors and outdoors, and increase thermal energy and the rate of heat flux, solar irradiation flowing into the house. 3. The heat flux flowing into the house through window could be reduced to 90% by using an external wooden mini-blind of 70% shading rate. 4. Owing to the large heat capacity of reinforced concrete (RC) wall, the maximum temperature difference on both sides of the wall occurred after the maximum heat flux flowing into the house wall about three hours later. 5. Considering the interaction among all the factors influencing thermal circulation in a room, it was found that the thermal insulation ability of the house with wooden interior decoration was better than that without decoration. The linear regression formulas could be used for thermal insulation design.

並列關鍵字

Thermal insulation ； Solar irradiation ； Heat flux ； Outdoor resultant temperature