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研究生: 謝其霖
Xie, Qi-Lin
論文名稱: 蒸發冷卻模組應用於分離式空調機之開發與性能研究
Development and Performance on Evaporative Cooling Unit applied to Split Type Air Conditioner
指導教授: 鄧敦平
Teng, Tun-Ping
學位類別: 碩士
Master
系所名稱: 工業教育學系
Department of Industrial Education
論文出版年: 2020
畢業學年度: 108
語文別: 中文
論文頁數: 102
中文關鍵詞: 紙纖維冷卻板間接式蒸發冷卻空氣預冷分離式空調機能源效率比
英文關鍵詞: cooling pads, indirect evaporative cooling, air pre-cooling, split type air conditioner, energy efficiency ratio
DOI URL: http://doi.org/10.6345/NTNU202000749
論文種類: 學術論文
相關次數: 點閱:168下載:0
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  • 本研究的蒸發冷卻模組是由水流分配系統搭配7條長柱狀紙纖維冷卻板組成。利用三種不同厚度的蒸發冷卻模組(CM1-CM3)分別裝置於分離式空調機的冷凝器進風口處。藉由水流分配系統將冷凝水均勻分配至冷卻板上,以間接蒸發冷卻的方式對進入冷凝器的空氣進行預冷,達到提升冷凝器的散熱性能與空調機的運轉效率。空調機性能試驗的環境條件則是參考CNS15712的低溫冷氣能力標準(C1)、CNS14464的T1標準(C2)及本研究自行增設的高溫條件(C3)。研究結果顯示,當實驗環境條件由C1上升到C2時,裝設蒸發冷卻模組的空調機的性能明顯提升。在C2實驗環境條件下是以裝設CM3的空調機能獲得最高的能源效率比(EER)及性能係數(COP),分別比原機提升4.30%、4.00 %。然而,在C3實驗環境條件下,裝設蒸發冷卻模組的空調機性能表現明顯下降。這種現象主要是因為高溫實驗環境條件導致空調機性能降低使得冷凝水量減少進而造成蒸發冷卻模組無法針對冷凝器進行有效蒸發冷卻所致。

    The evaporative cooling module in this study is composed of a water flow distribution system and seven long cylindrical paper fiber cooling pads. Three types of evaporative cooling modules (CM1-CM3) with different thicknesses are respectively tested by being installed at the air inlet of the condenser of the separate air conditioner. Through the water flow distribution system, the condensate is evenly distributed to the cooling pad, and the air entering the condenser is pre-cooled by indirectly evaporative cooling to improve the heat dissipation performance of the condenser and the operating efficiency of the air conditioner. The environmental conditions of the air conditioner performance test refer to the low-temperature air-conditioning capacity test standard of CNS15712 (C1), the T1 test standard of CNS14464 (C2), and the high-temperature condition configured in the study (C3). The research results show that the performance of the air conditioner equipped with an evaporative cooling module is significantly improved when the experimental environmental conditions change from C1 into C2. The highest energy efficiency ratio (EER) and coefficient of performance (COP) were obtained with the air-conditioner equipped with CM3 under the experimental environmental conditions of C2, which is 4.30% and 4.00% higher than the original machine, respectively. However, the performance of the air conditioner with the evaporative cooling module was significantly reduced under the environmental conditions of C3. This phenomenon is mainly due to the fact that the high-temperature experimental environmental conditions lead to a decrease in the performance of the air conditioner such that the amount of condensed water reduces, and thus the evaporative cooling module cannot effectively pre-cool the condenser.

    目次 謝誌 i 摘要 ii Abstract iii 目次 v 表次 vii 圖次 ix 第一章 緒論 1 1.1 研究背景與動機 1 1.2 研究目的 3 1.3 研究流程 3 1.4 論文架構 5 1.5 文獻回顧 6 第二章 理論基礎與文獻探討 9 2.1 蒸氣壓縮冷凍循環系統 9 2.1.1 理想蒸氣壓縮冷凍循環系統 10 2.1.2 實際蒸氣壓縮冷凍循環系統 12 2.1.3 蒸氣壓縮冷凍循環系統之熱力性質分析 14 2.2 空氣調節系統 17 2.2.1 窗型與分離式空調機 17 2.2.2 空氣調節之熱力性質分析 19 2.2.3 分離式空調機之性能試驗標準 23 2.3 蒸發冷卻技術 24 2.3.1直接式蒸發冷卻 24 2.3.2間接式蒸發冷卻 24 2.3.3空氣和水接觸前後之狀態分析 25 第三章 實驗設計 27 3.1 實驗系統 28 3.1.1 環境控制系統 28 3.1.2實驗設備 31 3.1.3相關實驗量測裝置 33 3.2 分離式空調機性能試驗方法及步驟 37 3.3 蒸發冷卻模組設計 39 3.4 儀器與設備介紹 47 3.5 數據處理 58 3.6 誤差分析 60 第四章 結果與討論 63 4.1 空氣側狀態點性質分析 64 4.1.1室內機出回風狀態點 64 4.1.2室外機出回風狀態點 66 4.1.3間接式蒸發冷卻模組前、後端對室外機出風口溫度狀態 67 4.2 空氣側性能分析與比較 74 4.3 機械側性能分析與比較 80 第五章 結論與建議 87 5.1 結論 87 5.2 建議 90 參考文獻 91 符號釋義 97 作者簡介 101

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