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題 名 | 鋼筋混凝土外牆降低熱傳改善方式之研究--以臺灣鄉村地區農宅為例=The Research of Methods in Reducing Heat Transmission from Exterior Reinforced Concrete Walls--A Case Study of Residential Buildings in Rural Areas of Taiwan |
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作 者 | 韓選棠; 徐嘉宏; 劉康胤; | 書刊名 | 農業工程學報 |
卷 期 | 56:3 2010.09[民99.09] |
頁 次 | 頁1-11 |
分類號 | 441.577 |
關鍵詞 | 建築節能; 外牆隔熱; 舊建築更新; Building energy conservation; Thermal insulation of exterior walls; Building rehabilitation; |
語 文 | 中文(Chinese) |
中文摘要 | 由於台灣鄉村地區農宅普遍獨棟且大面積興建,附近並無比鄰之建築物能互相遮擋,使外牆易直接受到日照的影響;目前台灣住宅外牆是以12 cm厚之鋼筋混凝土牆為主,為耗能的構造型式,又許多農宅外牆甚至僅以水泥砂漿處理,造成夏日室內更熱的問題。因此本研究將以不拆除原牆體為前提,從設計面上,提出提出降低外牆熱傳改善方式,並進行各改善模組之隔熱性能、經濟性以及厚度評估。 透過理論與實際面的了解,可將外牆降低熱傳改善方式歸納為以下6種方式:室內增設隔熱層、室內增設封閉空氣間層、室外增設隔熱層、外牆表面噴抹塗料、室外增設封閉空氣間層、室外增設流動空氣間層。 研究結果顯示,室內增設隔熱層與封閉空氣間層改善方式的熱得減少率,約在60%~80%之間;室外增設隔熱層改善方式之熱得減少率,約在70%~90%之間;外牆表面噴抹塗料改善方式之熱得減少率,在37%~55%之間;室外增設封閉空氣間層改善方式之熱得減少率,在41%~51%之間;室外增設流動空氣間層改善方式之熱得減少率,在53%~62%之間。 |
英文摘要 | Residential buildings in rural areas of Taiwan are typically large detached houses, which are exposed to direct sunlight on their exterior walls as there are no surrounding buildings to block sunlight and create shade. Also the 12 cm reinforced concrete exterior walls are the mainstream in Taiwan’s residential buildings, which has the property of high thermal conductivity that can easily make the thermal flow transfer indoors. Furthermore, most of the residential buildings in rural areas only use mortar as a finishing layer that aggravated increase the indoor heat gain. So, this research is under the premise of retaining the original exterior walls, from the design point of view to develop the methods of reducing heat transmission, and make on assessment of each model’s performance, economic viability and thickness. Through the understanding of theory and practical perspectives, the methods of reducing heat transmission from the exterior walls can be summed up as follows six methods: additional interior insulation layers, additional interior closed cavities, additional exterior insulation layers, outer surface painting, additional exterior closed cavities and additional exterior naturally ventilated cavities. The results showed that the additional interior insulation layers and closed cavities methods could reduce the indoor heat gain by about 60%-80%; the additional exterior insulation layers method could reduce the indoor heat gain by about 70%-90%; the outer surface painting method could reduce the indoor heat gain by between 37% and 55%; the additional exterior closed cavities method can reduce the indoor heat gain by between 41% and 51%; and the additional exterior naturally ventilated cavities method could reduce the indoor heat gain by between 53% and 62%. |
本系統中英文摘要資訊取自各篇刊載內容。