| 研究生: |
黃妍雅 Yan-Ya Huang |
|---|---|
| 論文名稱: |
雙床小型吸附式空調系統製作與性能 The manufacture and performance analysis of a compact two-bed adsorption system |
| 指導教授: |
楊建裕
Chien-Yuh Yang |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 機械工程學系 Department of Mechanical Engineering |
| 畢業學年度: | 100 |
| 語文別: | 中文 |
| 論文頁數: | 81 |
| 中文關鍵詞: | 吸附式製冷 、水-矽膠 |
| 外文關鍵詞: | silica gel-water, adsorption cooling |
| 相關次數: | 點閱:9 下載:0 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
研究目的是製作一個以水-矽膠為吸附配對的小型吸附式空調系統並測試其性能。比較兩種吸附床、兩種冷凝器對及冷卻水溫度對性能的影響。
由實驗結果發現,比較扁平管吸附床與扁平鰭管吸附床,扁平管製冷量為1.808 kW,扁平鰭管吸附床製冷量為2.216 kW,增加鰭片面積可提升製冷量22.5%,但鰭片增加了吸附床的金屬熱容,導致COP下降。
比較不同冷凝器對性能的影響,四層冷凝器較三層冷凝器的熱傳面積增加了33.3%,製冷量可提高8.2%。
冷卻水溫度對性能有顯著的影響,冷卻水30oC時的製冷量為1.283 kW;冷卻水25 oC時製冷量為1.808 kW,降低冷卻水溫度,製冷量可提升40.9%。
The main purpose of this research, a silica gel-water compact adsorption system is designed and the system performance is measured. Two different adsorption beds and condensers are tested in the experiment.
The experimental shows that performance, the cooling capacity of flat-tube adsorption bed is 1.808 kW, the cooling capacity of flat-fin-tube adsorption bed is 2.216 kW, respectively. The cooling capacity of the flat-fin-tube adsorption bed is about 22.5% higher than that of the flat-tube adsorption bed .And COP of flat-fin-tube adsorption bed doesn’t increase because the fin increase the metal capacity
The cooling capacity is boosted by about 8.2% when the heat transfer area of condenser boosted about 33.3%.
The test results show that cooling water temperature has significant effect on performance. When the cooling water temperature is 30℃, the cooling capacity is 1.283 kW. When the cooling water temperature is 25℃, the cooling capacity is 1.808 kW. The cooling capacity increased by 40.9%.
Akahira, K.C., Alam, A., Hamamoto, Y., Akisawa, A., Kashiwagi, T.,2005, “Experimental investigation of mass recovery adsorption refrigeration cycle ”,International Journal of Refrigeration, Vol.28, p .p. 565–572.
Boelman,E.C., Saha, B.B., Kashiwagi ,T., 1955,“Experimental vestigation of a silica gel-water adsorption refrigeration cycle the influence of operating conditions on cooling output and COP”, SHRAE Transaction Research, Vol.2 ,p.p.358-366.
Cooper, M.G., 1984, “Saturation nucleate pool boiling – a simple correlation”, Int. Chem. Engng. Symp. Ser., 86:785-792.
Chua, H.T., Ng, K.C., Malek, T., Akisawa, A., Saha, B.B., 1999,“Modeling t he performance of two-bed, sillica gel-water adsorption chillers’’, International Journal of Refrigeration, Vol.22, p.p.194-204.
Chang, W.S., Wang,C.C., Shieh, C.C., 2007, “Experimental study of a solid adsorption cooling system using flat-tube heat exchangers as adsorption bed ”, Applied Thermal Engineering Vol.27, p.p.2195-2199.
Li, T.X., Wang, R.Z., Wang, L.W., Lu, Z.S., Chen, C.J., 2007,“Performance study of a high efficient multifunction heat pipe type desorption ice making system with novel mass and heat recovery processes, “International Journal of Thermal Sciences”, Vol. 46, p.p.1267-1274.
Liu, Y.L., Wang, R.Z., Xia, Z.Z., 2005, “Experimental performance of a silica gel–water adsorption chiller”, Applied Thermal Engineer, Vol.25
p.p.359-375.
Luo, H.L., Dai, Y.J., Wang, R.Z., Wu, J.Y., Xu ,Y.X., Shen, J.M.,2006, “Experimental investigation of a solar adsorption chiller used for grain
depot cooling”, Applied Thermal Engineering ,Vol. 26,pp.1218-1225.
Nusselt, W., 1916, “the condensation of the steam on cooled surfaces”, Z. ver. Ttsch. Ing., 60, pp.541-546.
Qu, T.F., Wang, R.Z., Wang, W., 2001, “Study on heat and mass recovery in adsorption refrigeration cycles” Applied Thermal Engineering, Vol.21, pp.439-45.
Wang, R.Z., Wu, J.Y., Xu, Y.X., Wang,W., 2001, “Performance researches and improvements on heat regenerative adsorption refrigerator and heat pump’’, Energy Conversion an Management,Vol.42,p.p.233-249.
Wang, X.L., Chua, H.T., 2007, “Two bed silica gel-water adsorption chillers: An effectual lumped parameter model”, International Journal of Refrigeration,Vol.30, p.p.1417-1426.
Wu, J.Y., Wang R.Z., Xu, Y.X., 2002, “Experimental results on operating parameters influence for an adsorption refrigerator’’, International Journal Thermal,Vol.41, p.p.137-145.
Wang, X.L., Chua, H.T., 2007, “Two bed silica-gel water adsorption chillers: An effectual lumped parameter model”, International Journal of Refrigeration, Vol.30, p.p.1417-1426.
Wang, D.C., Xia, Z.Z., Wu, J.Y., Wang, R.Z., Zhai ,H., Dou, W.D., 2005, “ Study of a novel silica gel–water adsorption chiller.Part I. Design and performance prediction ’’International Journal Refrigeration , Vol.28,
p.p.1073-1083.
Wang, D.C., Wu, J.Y., Xia, Z.Z., Zhai, H., Wang, R.Z., Dou, W.D., 2005, “Study of a novel silica gel-water adsorption chiller. Part II. Experimental study", International Journal of Refrigeration,Vol.28, p.p. 1084-1091.
Wang, R.Z., Wu, J.Y., Xu, Y.X., Teng Y., Shi, W., 1998, “Experiment on a continuous heat regenerative adsorption refrigerator using spiral plate heat exchanger as adsorbers”, Applied Thermal Engineering, Vol.18, pp.13-23.
Wang, R.Z., 2001, “Performance improvement of adsorption cooling by heat and mass recovery operation” International Journal of Refrigeration, Vol. 24 , p.p. 602-611.
Wang, X.L, Chua, H.T., Ng,K.C.,2005, “Experimental investigation of silica gel adsorption chillers with and without a passive heat recovery scheme”, International Journal of Refrigeration ,Vol.28, p.p 756-765.
陳又維(2010),「薄矽膠層吸附床之性能研究」,國立中央大學能源工程研究 所碩士論文。
林宗漢(2011),「矽膠塗佈厚度對扁平管吸附床性能之影響」,國立中央大學 能源工程研究所碩士論文。
謝鎮州、張文師、王智正、唐震宸,2004,「運用工業廢熱之固體吸附式製 冷系統」,化工技術,第12 卷第四期。
王智正、謝鎮州、張文師、唐震宸,2004,「熱能驅動之固體吸附式製冷實驗研究」,中國機械工程學會第二十一屆全國學術研討會。