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研究生:梁育誠
研究生(外文):YU CHENG LIANG
論文名稱:模組式屋頂輻射地板用於太陽能熱水及隔熱降低空調負荷之實驗研究
論文名稱(外文):Experimental study of roof radiation absorption modules applied to solar hot water and insulation to lower air conditioning load
指導教授:蔡尤溪蔡尤溪引用關係
指導教授(外文):Yew Khoy Chuah
口試委員:馬小康顏維謀蔡尤溪
口試委員(外文):Yew Khoy Chuah
口試日期:2016-06-25
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:能源與冷凍空調工程系碩士班
學門:工程學門
學類:其他工程學類
論文種類:學術論文
畢業學年度:104
語文別:中文
中文關鍵詞:輻射地板、太陽能熱水、建築隔熱、空調節能、建築動態模擬
外文關鍵詞:Radiant floorsolar hot waterbuilding insulationair conditioning energy saving、building dynamic modeling
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本研究發展一種輻射地板模組,置於屋頂可取代原有隔熱磚或隔熱層,不破壞建築外部美觀,以被動式設計不改變屋頂結構,輻射地板模組內置不鏽鋼水管,可將吸收的太陽輻射熱轉換成熱水,使太陽熱水循環至儲水槽,成為一種輻射地板與太陽能熱水系統之結合,具有建築隔熱及太陽能熱水雙功能。本系統以泵浦強制對流集熱效率可達32.3%,且在特定外氣條件下可使水路自然對流循環,流量每小時可達0.04 m3,無動力元件無馬達噪音,省去泵浦運轉電力和後續的維修經費。實驗所測得熱水溫度與本系統數學模型計算值誤差在±12%以內,驗證本研究之理論模型之精確度。本系統隔熱是以輻射模組內通過水冷卻建築外殼,兩種水路循環方式都可將建築屋頂溫度降至40℃以下,表示本研究隔熱效果佳。
本研究為一種可實現的綠能科技,以建築動態模型以2015年台北氣象資料模擬總面積18000m2共十層的辦公大樓,應用本研究可減少之屋頂熱負荷占頂層總熱負荷達9-11%,減少頂層屋頂傳導熱負荷50-66%,可有效減少室內熱負荷,達到節能效果。產製熱水加熱量在5.5-10kW,50℃熱水量可達1165-4821公升;減少空調負荷耗能與產製熱水替代電熱鍋爐,一年可節省約臺幣15萬電費。
Modular units of radiation floor that can replace the roof insulation layer was experimented and analyzed. The design studied is passive in nature made of light concrete and would not change the appearance of the roof basically. Water was designed to circulate through the stainless coil imbedded in the modules. By such design solar water heating and roof insulation are integrated. The heat collection efficiency was tested up to 32.3% in the case with pump circulation. At certain conditions natural water circulation up to 0.04 m3 was obtained with no pump power, eliminating the pump noise at the same time. The hot water temperature measured agreed with the mathematical model within ± 12%, that verify the accuracy of the theoretical model of this study. Either types of water circulation has been tested and found to keep the roof temperature below 40℃. The results indicate the effectiveness of the heat insulation of the modules studied.
The technology studied is a viable Green Technology. When applied to a ten story office building case of 18000m2 roof area, dynamic building energy simulation with Taipei meteorological data of 2015 has shown a reduction of heat load 9-11% for the top floor, and up to 50-66% reduction of conductive heat load. The results show the effectiveness of reducing heat load and save energy. The hot water heating rate was tested to be 5.5-10kW. For 50℃ hot water up to 1165-4821 liters can be produced. Combine energy saving of air-conditioning and electric boiler, annual saving of about NT 150,000 can be achieved.
摘 要 I
ABSTRACT II
誌 謝 IV
目錄 V
表目錄 VII
圖目錄 VIII
第一章 緒論 1
1.1 研究背景 1
1.2 文獻回顧與探討 8
1.3 研究目的 13
1.4 研究流程 16
第二章 輻射地版介紹 17
2.1 輻射空調發展介紹 17
2.2 輻射地板熱傳數學理論模型分析 22
2.3 輻射地板之吸收率分析 27
第三章 實驗方法與量測 33
3.1 實驗目的 33
3.2 實驗方法 33
3.3 實驗系統與設備 38
第四章 標準建築模型之熱負荷模擬 46
4.1 Energy Plus 軟體介紹 46
4.2 模擬標準建築模型 52
4.3 輻射模型設定與數值分析 57
4.4 熱分層熱水器模組設定與數值分析 61
4.5 太陽能集熱器模組設定 64
第五章 實驗與模擬結果 66
5.1 實驗量測結果之輻射地板效率分析 66
5.2 輻射地板之自然對流逐時集熱與儲熱分析 70
5.3 輻射冷卻地板之隔熱分析 73
5.4 熱傳數學模型計算出水溫度 76
5.5 與實驗比對之模擬準確性 77
5.6 模擬結果 79
第六章 結論與建議 84
6.1 結論 84
6.2 建議 85
參考文獻 86
符號彙編 92
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