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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳希立(Sih-Li Chen) | |
dc.contributor.author | Kuan-Ting Lin | en |
dc.contributor.author | 林冠廷 | zh_TW |
dc.date.accessioned | 2021-06-13T03:22:13Z | - |
dc.date.available | 2016-08-05 | |
dc.date.copyright | 2011-08-05 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-07-29 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31852 | - |
dc.description.abstract | 傳統空調系統使用冰水主機進行除濕,耗費大量電力。本研究使用低耗電之液體除濕系統,經實驗證明能有效移除空氣中水分達到除濕效果。液體除濕系統只需使用水泵和溶液泵,可獨立處理外氣濕度,相較於傳統空調系統,具有更佳的靈活性。
本研究之新型外氣空調箱設備的特色為:(1)結合淺層溫能應用;(2)吸收液除濕系統;(3)超飽和噴霧製冷與冷能回收等三項特點。本除濕系統係使用氯化鈣溶液作為吸收液,以實驗和數學理論模式相互結合,研究本系統之除濕性能。 本系統在外氣17.7 g/kg濕度比、空氣質量流率0.25 kg/s條件下,除濕後可降低空氣4.9 g/kg之濕度比,提供室內環境12.8 g/kg之濕度比,除濕效率可達到68 %。研究顯示當提高空氣與吸收液入口質量流率、空氣入口絕對濕度和吸收液入口濃度將會提高水分移除率。當降低空氣入口質量流率和提升吸收液入口質量流率將會提高除濕效率。 | zh_TW |
dc.description.abstract | Traditional air conditioning systems use chillers for dehumidification. In this study, liquid-desiccant dehumidification is an effective method for extracting moisture from the air with relatively low energy consumption. In practice, the system requires power only for water pumps and solution pumps. In a liquid desiccant air conditioning system, humidity can be controlled individually, which has great advantages comparing to the traditional air-conditioning system.
This study proposes a new type of make-up air system. The features are: (1) system coupling with geothermal energy, (2) liquid desiccant dehumidification, (3) super saturation spray cooling and cold energy recycling. Calcium Chloride aqueous solution was used as the liquid desiccant in this system. Dehumidification performance is studied with experimental and numerical method. Condition of the system is 17.7 g / kg humidity ratio for the inlet air, air flow rate is 0.25 kg/s, which can reduce 5 g/kg of the humidity ratio, and the indoor environment humidity ratio could achieve by 12.8 g/kg dehumidification efficiency can reach 70%. It was found that when increasing air and desiccant inlet flow rate, air inlet absolute humidity and desiccant inlet concentration, the moisture removal rate will be higher. When decreasing air inlet flow rate and increasing desiccant inlet flow rate, the dehumidifier effectiveness will be higher. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T03:22:13Z (GMT). No. of bitstreams: 1 ntu-100-R98522301-1.pdf: 3877744 bytes, checksum: f3cae7d08138fe89e624824237a88c32 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 誌謝 I
摘要 II Abtract III 目錄 IV 圖目錄 VII 表目錄 XI 符號說明 XII 第一章 緒論 1 1.1前言 1 1.2文獻回顧 4 1.3研究動機與目的 5 第二章 基礎理論 10 2-1 化學除濕熱質傳基礎理論 10 2-2 濕空氣學與除濕溶液學理論 13 2-3 誤差分析 21 2-4 計算流程 22 第三章 實驗設備及研究方法 29 3-1 系統簡介 29 3-2 實驗設備及量測儀器 30 3-2.1設備簡介 30 3-2.2 溫度之校正 32 3-3 實驗方法 32 3-4 實驗參數範圍 33 3-5 實驗流程 33 3-5.1 空氣入口質量流率變化 34 3-5.2空氣入口乾球溫度變化 34 3-5.3 空氣入口濕度變化 35 3-5.4吸收液入口質量流率變化 36 3-5.5吸收液入口溫度變化 36 3-5.6吸收液入口濃度變化 37 第四章 結果與討論 44 4-1 氯化鈣性能測試 44 4-2 空氣入口質量流率變化對除濕系統影響 46 4-3 空氣入口乾球溫度變化對除濕系統影響 48 4-4 空氣入口濕度變化對吸收液系統影響 50 4-5 溶液入口質量流率變化對吸收液系統影響 52 4-6 溶液入口溫度變化對吸收液系統影響 54 4-7 溶液入口濃度變化對吸收液系統影響 56 4-8 溶液再生之研究 58 4-8.1不同濃度下,對再生溫度的影響 58 4-8.2不同氣液比下,對再生溫度的影響 58 第五章 結論與建議 80 5-1結論 80 5-1.1空氣端參數變化之性能研究 80 5-1.2溶液端參數變化之性能研究 80 5-1.3再生端之研究 81 5-1.4最佳操作點 81 5-2建議 82 參考文獻 83 | |
dc.language.iso | zh-TW | |
dc.title | 使用氯化鈣溶液之外氣空調箱除濕性能研究 | zh_TW |
dc.title | Performance Analysis of Dehumidification using Calcium Chloride in Make-up Air System | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 柯明村(Ming-Tsun Ko),陳輝俊(Hui-Chun Chen),張至中(Chih-Chung Chang) | |
dc.subject.keyword | 外氣空調箱,化學液體除濕,吸收液,氯化鈣, | zh_TW |
dc.subject.keyword | make-up air system,liquid desiccant dehumidification,desiccant,Calcium chloride, | en |
dc.relation.page | 86 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-07-29 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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