研究生: |
黃柏升 Posheng - Huang |
---|---|
論文名稱: |
分析UFAD系統應用於本土建築物之研究 Analysis of Under-Floor Air Distribution System Applied to the Building in Taiwam |
指導教授: |
陳瑞華
Rwey Hua Cherng 林怡均 Yi-Jiun Peter Lin |
口試委員: |
鄭政利
Cheng-Li Cheng 吳啟哲 Chi-Che Wu |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 140 |
中文關鍵詞: | 耗能量 |
外文關鍵詞: | UFAD, WM, Energy Plus |
相關次數: | 點閱:116 下載:2 |
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建築構造物提供我們一個適合工作及居住的室內環境,隨著不同的氣候條件,建築構造物不可避免地或多或少使用能源以維持舒適的室內環境品質,本研究分別利用UFAD系統(Under-Floor Air Distribution)及傳統的WM系統(Well Mixed)維持適當的室內環境品質,探討不同系統所呈現的室內熱環境以及能源消耗表現。
本研究利用建築能源分析軟體–Energy Plus模擬位於台北縣土城市的實體建築–台科一號,在台北標準氣象年的氣候條件下,室內所呈現的熱環境,根據此結果與舒適溫度範圍(17℃~25℃)比較發現室內空氣溫度有超過半年的時間高於25℃;有12天的時間低於17℃,因此利用Energy Plus中理想化的熱交換設備–Purchased Air,配合兩種不同系統調節室內空氣溫度,讓室內空氣溫度維持在17℃至25℃之間,其他時段熱交換設備則不啟動。
模擬結果顯示,若以WM系統為基準,溫度分層高度1.1公尺的UFAD系統一年可節省21.7%的耗能量;而不同溫度分層高度的UFAD系統,年總耗能量亦不同,其中以1.1公尺的UFAD系統年總耗能量22002 [kWh]最少,6.0公尺的UFAD系統年總耗能量25346 [kWh]最多,兩者相差約15%的耗能量。
由於本研究只將人體散發出來的熱能視為室內熱源,尚未將燈光、電器設備所散發出來的熱能列入模擬之中,且模擬時所使用的熱交換設備亦為理想化的設備,所以整個模擬過程尚未達到最真實的情況,建議往後的研究可將上述未模擬的設備列入模擬考量之中,以便更接近真實情況。
Buildings provide us a shelter environment to live and work. Under various climate conditions, buildings inevitably consume energy in order to maintain the comfortable internal environment. In the thesis, I apply UFAD system (Under-Floor Air Distribution) and the traditional WM system (Well Mixed) to maintain a comfortable internal environment, and discuss the internal thermal environment and the energy consumption between different systems.
Using the typical meteorological years of Taipei, I apply the building energy analysis software, Energy Plus, to simulate the internal thermal environment within a real building, NTUST NO.1, in Tucheng city. According to simulation results, the internal temperature is higher than 25℃ for more than half a year and is lower than 17℃ for twelve days. The comfortable temperature is set to range from 17℃ to 25℃. In the simulation program I apply the idealized thermal exchange plant, Purchased Air, and two different ventilation systems to keep the internal temperature between 17℃ and 25℃.
Compared with the WM system, the simulation results show that UFAD system having 1.1 meters interface high can save up to 21.7% of the energy consumption in one year. However, the annual energy consumption varies as the interface high changes. The higher the interface is, the more the annual energy consumes. Simulation results show that 22,002 [KWh] is the minimal annual energy consumption for UFAD system having 1.1 meters interface high, and 25,346 [KWh] is the maximum one for UFAD system having 6.0 meters interface high. The difference between the both approximates 15%.
In the thesis, I only consider the heat produced by human body as the internal gain, and do not take the heat produced by the lights and the electrical appliances into account. In addition, the thermal exchange plant is idealized. The simulation process may be improved to consider more factors in order to approximate the realistic case.
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