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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳發林 | |
dc.contributor.author | Hsien-Yu Wu | en |
dc.contributor.author | 吳顯佑 | zh_TW |
dc.date.accessioned | 2021-06-08T02:44:03Z | - |
dc.date.copyright | 2018-02-26 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-01-19 | |
dc.identifier.citation | [1]經濟部能源局,能源統計手冊, 2015
[2]建築節能應用技術手冊,財團法人台灣綠色生產力基金會編印, 2012 [3]王宇航,陳友明,伍佳鴻,彭建國, '地源熱泵的研究與應用.' 建築熱能通風空調 (2004): 33-35 [4]Florides, Georgios, and Soteris Kalogirou. 'Ground heat exchangers—A review of systems, models and applications.' Renewable energy 32.15 (2007): 2461-2478. [5]Omer, Abdeen Mustafa. 'Ground-source heat pumps systems and applications.' Renewable and sustainable energy reviews 12.2 (2008): 344-371. [6]Geothermal Heat Pump Consortium, 2005 [7]Mihalakakou, G., Santamouris, M., Lewis, J. O., & Asimakopoulos, D. N. 'On the application of the energy balance equation to predict ground temperature profiles.' Solar Energy 60.3-4 (1997): 181-190. [8]HVAC Applications for PE Pipe, Handbook of PE Pipe [9]吳清吉, & 許武榮. '台灣土壤溫度分析和土壤熱擴散系數推估.' 大氣科學 31.2 (2003): 115-130. [10]蔡子衿, 吳清吉, & 許武榮. '台灣土壤溫度變化和土壤熱擴散係數推估.' 大氣科學 36.2 (2008): 83-100. [11]林佩佩. '不同深度土壤熱擴散係數之推估與探討.' 中興大學水土保持學系所學位論文 (2009): 1-84. [12]D.A. Ball, R.D. Fischer, & D.L. Hodgett. “Design methods for ground-source heat pumps”, ASHRAE Transactions, 89(2)(1983): 416-440. [13]Sanner, B., Karytsas, C., Mendrinos, D., & Rybach, L. 'Current status of ground source heat pumps and underground thermal energy storage in Europe.' Geothermics 32.4 (2003): 579-588. [14]Hwang, Y., Lee, J. K., Jeong, Y. M., Koo, K. M., Lee, D. H., Kim, I. K., & Kim, S. H. 'Cooling performance of a vertical ground-coupled heat pump system installed in a school building.' Renewable Energy 34.3 (2009): 578-582. [15]Pulat, E., Coskun, S., Unlu, K., & Yamankaradeniz, N. 'Experimental study of horizontal ground source heat pump performance for mild climate in Turkey.' Energy 34.9 (2009): 1284-1295. [16]Jalaluddin, J., Miyara, A., Tsubaki, K., & Yoshida, K. 'Thermal performances of three types of ground heat exchangers in short-time period of operation.' (2010). [17]Congedo, P. M., Colangelo, G., & Starace, G. 'CFD simulations of horizontal ground heat exchangers: a comparison among different configurations.' Applied Thermal Engineering 33 (2012): 24-32. [18]Tarnawski, V. R., Leong, W. H., Momose, T., & Hamada, Y. 'Analysis of ground source heat pumps with horizontal ground heat exchangers for northern Japan.' Renewable Energy 34.1 (2009): 127-134. [19]Sanaye, S., & Niroomand, B. 'Thermal-economic modeling and optimization of vertical ground-coupled heat pump.' Energy Conversion and Management, 50(4) (2009): 1136-1147. [20]Yang, W., Zhou, J., Xu, W., & Zhang, G. 'Current status of ground-source heat pumps in China.' Energy Policy 38.1 (2010): 323-332. [21]葉新晨, '多U型地埋管熱交換器之性能分析研究', 國立臺灣大學機械工程碩士論文, 2016. [22]李世唐, '螺旋盤管式熱交換器之數值分析', 國立高雄海洋科技大學輪機工程系暨研究所碩士論文, 2015. [23]肖銳, '垂直地埋管換熱模擬及實驗研究', 中國地質大學(北京)碩士學位論文, 2014. [24]Kuppan, T., 'Heat exchanger design handbook', Boca Raton, Fla. : CRC Press 2013. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/20282 | - |
dc.description.abstract | 近幾年來,能源與氣候變遷等議題開始受到重視,各國家陸續發展綠能與實施節能減碳之措施,在能源使用之設備中,冷暖空調系統為占耗能的大宗,因此對於減少空調系統負載,在節能方面應有不錯的效果,地埋熱交換器與配合空調系統之使用是一種降低系統耗能的方式。
地埋熱交換器是由地層端地埋管與空調系統端所組成,是一獨立運作之系統,目的是為了與冷暖空調所排出之冷熱氣體熱交換,避免直接排放至空氣中浪費掉,藉由與地埋熱交換器管內之工作流體熱交換後帶入地底地層,地層全年之溫度變化幅度較地表上溫度變化小,在夏季時地層溫度低於地表空氣溫度,可將空調排出的熱存放在地層,當冬季時地層溫度高於地表空氣溫度,當空間需要暖房時,地層的熱藉由地埋熱交換器分擔空調的暖房負載,達到減少耗能之目的。 在本研究中,針對地埋管之熱傳性能進行分析,並改變其設計追求更好的熱交換性能,本研究設計了U型管及螺旋管並在外層加入不鏽鋼套管,及同心管式地埋管,模擬外加套管前後與不同流量條件及不同地層熱傳係數之結果,並針對各項結果進行優劣性比較及討論。 不同樣式之地埋管模擬結果,U型管與螺旋管在夏季與冬季模擬的熱交換熱能為螺旋管式較佳,在不同地層熱傳係數的條件,U型管與螺旋管結果隨著熱傳導傳係數增加而增加,增加的斜率為螺旋管較大;加了外套管前後之結果,性能的提升以U型套管增加幅度較大,不同地層熱傳係數的條件,在較低的地層熱傳外加套管之熱交換熱能較佳,但地層熱傳係數增加後,套管式的設計由於增加了回填材料,導致熱交換效果受到影響,模擬之結果為未加套管性能較佳;同心管式的設計因為可容許的工作流體流量較大,當流量增加時熱交換性能也隨之增加,在夏季時熱交換表現介於U型管與螺旋管之間,但在冬季的熱交換表現U型與螺旋式地埋管優於同心管。透過模擬結果可知依據裝置條件選擇合適的地埋管模型,對於系統運作的性能與效率才會有好的結果。 | zh_TW |
dc.description.abstract | In recent years, the issue of energy and climate change has received the attention. The policies of green energy and implementing energy saving with the carbon reduction in each country are gradually developed. In the energy use of equipment, heating and cooling air conditioning system are important. Therefore, to reduce air conditioning system load, we should have good results in energy saving, and the use of ground heat exchangers and air conditioning system is a way to reduce the energy consumption of the system.
Ground heat exchanger system composed of ground pipe and air conditioning system, and it is an independent system of operation. The purpose of Ground heat exchanger system is to exchange heat and cold gases from the air conditioning system, and avoid the direct air emissions. Heat energy is brought into the stratum by the heat exchange of fluids with the ground heat exchanger tubes, and the temperature change of the stratum is less than the surface temperature. In the summer, the stratum temperature is lower than the surface temperature. Stratum can store the thermal energy from the air conditioning system; in the winter, the stratum temperature is higher than the surface temperature. When the space needs heating, we can use stratum thermal energy of the ground heat exchanger to share air conditioning system load to achieve the purpose of reducing energy consumption. In this study, the heat transfer performance of ground tubes was analyzed, and to change its design to have a better heat exchange performance. To design a U-type tube , spiral tube and the stainless steel casing is added to the outer layer, the results of simulation of stainless steel casing with different flow conditions and different ground thermal conductivity are compared and discussed in the results. Different ground pipe simulation results of the U-type tube and spiral tube in summer and winter can show us that spiral tube is better than U-type. In different formation thermal conductivity conditions, U-type tube and spiral tube simulation results for thermal energy increase with the thermal conductivity. The increase of the slope of spiral tube results is larger than U-type; in addition to the results of stainless steel casing, the increase of U-type performance is larger than spiral tube. Different conditions of thermal conductivity can let us know that in the low thermal conductivity condition, the thermal energy of the casing is better, however, the thermal conductivity increases, casing design because of the addition of filler material. If reduce the heat exchange effect, the result of simulation is that no casing type performance is better; double pipe design allows a larger flow, when the flow rate increases, heat exchange performance also increases. In the summer, heat exchange performance is between the U-type tube and spiral tube, but in the winter, heat exchange performance of U-type and spiral pipe are better than double pipe. According to the simulation results, select the appropriate ground pipe model, we can have the best performance and have more efficiency of the system. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T02:44:03Z (GMT). No. of bitstreams: 1 ntu-107-R04543028-1.pdf: 3573963 bytes, checksum: fd5346a1040f32a7c2b28f224a5a617c (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 誌謝 i
中文摘要 ii ABSTRACT iii 目錄 v 圖目錄 vii 表目錄 x 第一章 緒論 1 1.1 研究背景 1 1.2 研究動機與目的 3 1.3 研究方法與流程 3 第二章 文獻回顧 6 2.1 地源熱泵系統之介紹 6 2.1.1 地源熱泵系統之基本原理 7 2.1.2 地源熱泵系統之型式 8 2.1.3 地埋管線的配置 10 2.2 土壤熱能與溫度分佈情況 11 2.2.1 土壤溫度分佈情況 12 2.3 土壤熱能與地埋管的應用 13 第三章 分析方法 24 3.1 COMSOL簡介及計算流程 24 3.1.1 COMSOL計算流程 24 3.2 模擬方法驗證 26 3.3 地埋管模型樣式 28 3.3.1 無外加套管地埋管模型 29 3.3.2 加套管地埋管模型 32 3.4 土壤層溫度與地埋管材料參數 36 3.4.1 土壤層溫度分佈 36 3.4.2 土壤與地埋管材料參數 37 第四章 結果與討論 38 4.1 無套管聚乙烯地埋管在地層的模擬結果 40 4.1.1 不同質量流率條件的結果 40 4.1.2 不同土壤熱傳係數條件的結果 42 4.1.3 U型與螺旋地埋管之運作地層溫度分佈變化 44 4.2 外加套管聚乙烯地埋管在地層的模擬結果 49 4.2.1 外加套管後不同質量流率條件的結果 49 4.2.2 外加套管後不同土壤熱傳係數條件的結果 51 4.2.3 U型與螺旋地埋管外加套管之運作地層溫度分佈變化 53 4.3 同心管式地埋管在地層的模擬結果 58 4.3.1 不同質量流率條件的結果 58 4.3.2 不同土壤熱傳係數條件的結果 60 4.3.3 同心管式地埋管之運作地層溫度分佈變化 61 4.4 地埋管流量變化對熱能的影響 64 4.5 模擬結果優劣性的比較 67 4.5.1 不同流量條件之地埋管優劣比較 67 4.5.2 不同地層熱傳之地埋管優劣比較 70 第五章 結論與建議 73 5.1 結論 73 5.2 未來建議 74 參考文獻 76 | |
dc.language.iso | zh-TW | |
dc.title | 水平式地埋熱交換器之性能計算分析研究 | zh_TW |
dc.title | Numerical Analysis for the Performance of Horizontal Ground Heat Exchangers | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 顏維謀,張敏興 | |
dc.subject.keyword | 地埋熱交換器,地源熱泵,水平式地埋管,地層熱能, | zh_TW |
dc.subject.keyword | ground heat exchanger,ground source heat pump,horizontal buried tube,ground thermal energy, | en |
dc.relation.page | 77 | |
dc.identifier.doi | 10.6342/NTU201800108 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2018-01-22 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
顯示於系所單位: | 應用力學研究所 |
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