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研究生:邱盈哲
研究生(外文):Ying-Jhe Ciou
論文名稱:溶液除濕結合熱回收最佳參數化
論文名稱(外文):Optimal Parameterization of Liquid Desiccant Combined with Heat Recovery
指導教授:胡石政
口試委員:蕭敬倫林廸薛人瑋
口試日期:2016-07-14
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
中文關鍵詞:溴化鋰熱回收溶液除濕
外文關鍵詞:Lithium BromideHeat RecoveryLiquid Desiccant
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本論文主要研究溶液除濕系統的排氣排放於大氣之前,於除濕後的室內排氣進行冷能回收及再生後的排氣進行熱能回收,減少溶液除濕系統的能源消耗。溶液除濕系統主要由除濕端及再生端兩大子系統。回收冷能從室內排氣以風管方式導入至除濕端空氣入口達到預冷的作用。回收熱能則是透過熱交換器的方式,只單純回收高溫高濕空氣中的熱能而不回收空氣中的水分,加熱再生端空氣入口達到預熱的作用。進一步根據除濕量及再生量以及人體舒適度來選擇最佳的風量匹配。其結果顯示,在除濕風量2600 CMH、回風在75~80%為最佳人體舒適度之範圍,匹配再生風量為1600 CMH、無熱回收,此種除濕及再生的風量為最佳之匹配。經實驗證明,本系統可達到人體舒適度及節省能源的目的。
The thesis is mainly about the research aimed at investigating the saving of energy consumption of liquid desiccant system. Before the emission is exhausted to the atmosphere from liquid desiccant system, cold recovery is done under indoor exhaust after dehumidification, as well as implementing heat recovery to the emission after regeneration. A liquid desiccant system is consisted of two subsystems respectively- the humidification edge and the regeneration edge. To achieve the goal of precooling, cold recovery should be imported to the air inlet of dehumidification edge from the indoor exhaust through air hoses. Moreover, to achieve the goal of preheating, heat recovery should be done by utilizing heat exchanger, which simply recovers the heat within air that is hot also containing high humidity, while does no recovery to the moisture in air, that heats up the air inlet of regeneration edge. All the efforts we made are for pursuing the most suitable air volume matching, according to the capacities of dehumidification and regeneration, followed by comfort index of human body. From what the results shown we are able to tell that when under the circumstances of which the dehumidifying air volume maintains at 2600 CMH, the return air flowing between a rate at 75~80% that is considered as the best range for the comfort index of human body, the matched regenerating air volume maintains at 1600 CMH and without heat recovery, with all these conditions fulfilled can we find out the best matching to this specified type of dehumidification and the regenerating air volume. Proven by the experiments, the system is able to reach the standard along with satisfaction of the comfort index of human body, not to mention the fact that accomplishing the target of energy saving.
摘 要 i
ABSTRACT ii
誌 謝 iv
目 錄 v
表目錄 viii
圖目錄 ix
第一章 緒論 1
1.1 前言 1
1.2 文獻回顧 3
1.3 研究動機與目的 6
第二章 溶液除濕系統 7
2.1 目前空氣濕度處理方式 7
2.1.1 冷凝除濕 8
2.1.2 膜法除濕 8
2.1.3 壓縮除濕 9
2.1.4 固體轉輪除濕 9
2.1.5 液體除濕 10
2.2 除濕器形式的探討 13
2.2.1 外部冷卻型除濕裝置 13
2.2.2 內部冷卻型除濕裝置 14
2.3 再生器結合低階熱源的再生方式 16
2.3.1 再生器結合太陽能的再生方式 17
2.3.2 再生器結合熱泵的再生方式 18
2.3.3 再生器結合廢熱的再生方式 19
2.4 常用的溶液除濕劑 20
2.4.1 氯化鋰溶液除濕劑 20
2.4.2 氯化鈣溶液除濕劑 21
2.4.3 溴化鋰溶液除濕劑 22
2.5 溶液除濕基本原理和流程 24
2.5.1 溶液除濕基本原理 24
2.5.2 溶液除濕基本流程 25
第三章 實驗設備與研究方法 26
3.1 實驗系統簡介 26
3.2 實驗設備及系統 29
3.2.1 溶液除濕系統 29
3.2.2 熱泵 30
3.2.3 盤管組 31
3.2.4 變頻器系統 32
3.2.5 水循環系統 33
3.3 實驗量測儀器 34
3.3.1 風速計 34
3.3.2 壓差計 35
3.3.3 風罩 36
3.3.4 溫溼度紀錄器 37
3.3.5 三相電力記錄儀 38
3.4 實驗方法 39
3.4.1 實驗規劃 39
3.4.2 實驗變數 40
3.4.3 實驗流程 40
3.5 理論模式 42
第四章 結果與討論 46
4.1 室內回風比例對除濕系統的影響 46
4.2 熱回收對再生系統的影響 56
4.3 室內環境舒適度及風量匹配最佳化 61
第五章 結論 73
5.1 結論 73
5.2 未來方向及建議 74
參考文獻 75
符號彙編 81
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