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| 論文分類 | 碩士 |
|---|---|
| 學號 | 108626005 |
| 姓名 | 龎傳慶 Chuan-Ching Pang |
| 標題 | 綠屋頂能量傳遞特性、室內降溫 及節能效益分析與模擬 Analysis and simulation of the energy transfer characteristics, indoor cooling, and energy-saving benefit of green roof |
| 指導教授 | 陳沛芫 Pei-Yuan Chen |
| 畢業日期 | 2021-06 |
| 附件檔案 | |
| 參考連結 | https://etd.lib.nycu.edu.tw/cgi-bin/gs32/ncugsweb.cgi?o=dncucdr&s=id=%22GC108626005%22.&searchmode=basic |
| 摘要 | 都市熱島效應使都市內的日夜溫度居高不下，加上全球暖化，人們對空調的需求愈來愈高，部分研究證實綠屋頂在降溫、節能方面皆具有潛力，能緩解都市內高溫與能耗的問題，本研究目的為評估綠屋頂之室內降溫及節能效益，首先建立綠屋頂實驗進行綠屋頂各層溫度與熱通量的觀測，藉由模式評估綠屋頂的室內降溫與節能效益。本研究建立實驗組及對照組兩個包含空氣層的實驗箱，將空氣層視為建築物室內空間，並於各層設置熱偶線及熱通量計，蒐集實驗組及對照組之能量數據，以數據分析綠屋頂的能量收支、傳遞特性、室內降溫效益等項目，經實際觀測及分析後，發現綠屋頂於秋末至春初時，對室內空氣溫度的降溫效益約為1.4~4.7°C，綠屋頂有著延遲溫度峰值及穩定室內空氣溫度的特性，日夜溫差愈大時，中午時段的室內降溫效益愈顯著。節能效益模擬的部分，使用DesignBuilder建置與實驗箱相同材質的模型，輸入氣象資料後，以EnergyPlus進行模擬，經過冬季資料的檢定及驗證後，再以夏季資料做驗證，冬季及夏季室內空氣溫度的日資料模擬結果R皆大於0.9，NSE值皆大於0.7，確認該模式於不同季節時仍有一定的準確性，考量本研究實驗箱與實際建築物性質有異，參考台灣建築物材質法規後，建立一般建築物的模型，模擬鋪設綠屋頂後的節能效益，模擬期間為一月至九月，模擬結果顯示的綠屋頂約能減少45%的用電量。
The urban heat island effect makes the day and night temperature in the city remain high, and people’s demand for air-conditioning is even increasing under global warming. Some studies have confirmed that green roofs have the potential to cool down temperature and save energy. To alleviate the problems of high temperature and energy consumption in the city, the purpose of this research is to evaluate the indoor cooling and energy-saving benefits of green roofs. First, the study establishes a green roof experiment to observe the temperature and heat flux of each layer of the green roof. Then, the study evaluates the indoor cooling and energy-saving benefits of the green roof through the model. In this study, two experimental boxes containing an air layer were established as the experimental group and the control group. The air layer was regarded as the indoor space of the building. Thermocouples and heat flux meters were installed in each layer to collect the energy data of the experimental group and the control group, to analyze the energy budget, the transfer characteristics, and the indoor-cooling/energy-saving benefits of the green roof. From observation, it is found that the cooling effect of the green roof on the indoor air temperature is about 1.4~4.7°C from the end of autumn to the beginning of spring. The green roof has the effect of delaying the peak temperature and stabilizing the indoor air temperature. The greater temperature difference between day and night, the more significant the indoor cooling effect. For the energy-saving simulation part, the study uses DesignBuilder to build a model with the same material as the experimental box. After inputting the weather data, EnergyPlus is used to simulate indoor air temperature and energy saving. After the winter data is calibrate and validate, the summer data is also used for validation. The results of R for daily indoor air temperature in winter and summer simulation are all greater than 0.9, and the NSE values are greater than 0.7. It is confirmed that the model is reliable in different seasons. Considering the nature of the experimental box in this study is different from actual building, the study refers to the Taiwan Building Material Regulations to establish a model of a general building, to simulate the energy-saving benefits after implementing a green roof. The simulation period is from January to September.The simulation results show that a green roof can reduce electricity consumption by about 45%. |
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