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| 研究生： |
呂金翰 Liu, Jin-Han |
|---|---|
| 論文名稱： |
利用太陽熱能達到通風效果的研究 The Study of Ventilation Using Solar Thermal Energy |
| 指導教授： |
陳世雄
Chen, shih-Hsiung |
| 學位類別： |
碩士 Master |
| 系所名稱： |
工學院 - 航空太空工程學系 Department of Aeronautics & Astronautics |
| 論文出版年： | 2007 |
| 畢業學年度： | 95 |
| 語文別： | 中文 |
| 論文頁數： | 224 |
| 中文關鍵詞： | 太陽熱能 、熱管 |
| 外文關鍵詞： | solar thermal energy, heatpipes |
| 相關次數： | 點閱：78 下載：3 |
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本研究在於以實驗的方式探討利用太陽熱能做為驅動力，達到建築物通風的目的。驅動的原理是以集熱板吸收太陽熱能，透過熱管快速傳遞熱量的特性將收集到的熱能快速而高效的傳遞到遠端的散熱鰭片，鰭片溫度上升高後，以自然對流的方式驅動鰭片周遭的空氣上升，進而使建築物內的空氣來遞補，而達到室內通風換氣的目的。實驗的方式是以加熱板模擬太陽熱能量，並改變熱管數及散熱鰭片數，探討量化的通風效果，以找出較佳的設計參數以供未來設計者的參考。在6~10根熱管數及15~60片散熱鰭片的交錯實驗中發現熱管數增加時的熱對流量也會跟著上升，而10根熱管與30片鰭片的組合可達到最佳的通風效果。當日照量增加時熱對流量與通風量均相對上升，其中熱傳量與日照量成一次方的正比，而通風量雖也跟著日照量上升，但因出口氣流溫度升高，而使通風量未成正比的增加。
The purpose of the study is to investigate experimentally the building ventilation effect using solar thermal energy as the driving force. The process of the building ventilation activated by solar thermal energy is to use a solar panel to absorb solar radiation energy, transport the heat effectively through heat pipes to remote fins, and then convert the energy to surrounding air near the fins, the air is heated up and moved up through natural convection. The air inside the building will then be ventilated when moved to fill the vacated space of the heated air, through the energy conversion process. A heating element with adjustable electric power source is used to simulate the intensity of solar energy. Parametric studies of the heat pipe number and fin space in a confined duct were conducted. Optimal ventilation effects based on the parametric studies were discussed for future design considerations. It was found, among various combinations of 6~10 heat pipes and 15~60 cooling fins, the higher number of heat pipes will have better heat transport effect; while the combination of 10 heat pipes and 30 fins has the best air moving result. Moreover, when the solar heat is increased, both the heat transport and air moving quantity are increased. Among them, the heat transport is linearly increased but the air moving capability is not due to higher exit flow temperature.
參考文獻
1. Aung, W., “Fully Developed Laminar Free Convection between Vertical Plates Heated Asymmetrically,” International Journal of Heat and Mass Transfer, Vol. 15, pp. 1577-1580, 1972.
2. Aung, W., Fletcher, L. S., and Sernas. V., “Developing Laminar Free Convection between Vertical Flat Plates with Asymmetric Heating,” International Journal of Heat and Mass Transfer, Vol. 15, pp. 2293-2308, 1972.
3. Akyurt, M., “Development of Heat Pipes for Solar Water Heaters,”Solar Energy, Vol. 32, pp. 625-631, 1984.
4. Bar-Cohen, A., “Fin Thickness for an Optimized Natural Convection Array of Rectangular Fins,” ASME Journal of Heat Transfer, Vol. 101, pp. 564-566, 1979.
5. Bar-Cohen, A., and Roshenow, W. M., “Thermally Optimum Spacing of Vertical Natural Convection Cooled Parallel Plates,” ASME Journal of Heat Transfer, Vol. 106, pp. 116-123, 1984.
6. Bienert, W. B., and Wolf, D. A., “Heat Pipes in Flat Plate Solar Collectors,” ASME Paper 76-WA/SOL-12, 1976.
7. Carl-Olof, Olsson., “Prediction of Nusselt Number and Flow Rate of Buoyancy Driven Flow between Vertical Parallel Plates,” ASME Journal of Heat Transfer, Vol. 126, pp. 97-104, 2004.
8. Chen, L. Q., Li, Z. L., Ma, X. Q., Yang, Z. L., Leung, C. W., and Leung T. P., “An Experimental Investigation of Natural Convection Heat Transfer from an Array of Vertical Rectangular Fins,” Proceedings of 11th IHTC, Heat Transfer, Vol. 3, August, pp. 23-28, 1998.
9. Charles, D. J., and Lester, F. S., “Natural Convection Heat Transfer from Horizontal Surface for Free Convection Heat Transfer,” ASME Journal of Heat Transfer, Vol. 92, pp. 6-10, 1967.
10. Cotter, T. P., “Theory of Heat pipes,” Report LA-3246-MS Los Alamo Scientific Laboratory of the University of California, pp. 1-37, 1965.
11. Cotter, T. P., “Principles and Prospects for Micro Heat Pipe,” Proc. 5th Int. Heat Pipe Conf., Tsukuba Japan, pp. 328-338. 1985.
12. Elenbass, W., “Heat Dissipation of Parallel Plates by Free Convection,” Physica, Vol. IX, No. 1, pp. 1-28, January, 1942.
13. Grover, G. M., Cotter, T. P., and Erickson, G. F., “Structures of Very High Thermal Conductance,” Journal of Applied Physics, American Institute of Physics, Vol. 35, No. 6, pp. 1990-1991, New York, 1964.
14. Harahap, F., and McManus, H. N., “Natural Convection Heat Transfer from Horizontal Rectangular Fin Arrays,” Journal of Heat Transfer, Vol. 89, pp. 32-38, 1967.
15. Incropera, F. P., “Convection Heat Transfer in Elector Equipment Cooling,” ASME Journal of Heat Transfer, Vol. 110, pp. 1097-1111, 1988.
16. Incropera, F. P., and Dewitt, D. P., “Fundamentals of Heat and Mass Transfer, ” 5th edtion, J. Wiley, New York, 1996.
17. Jyotirmay, M., Sanjay, M., and Anupma, “Summer-Performance of
Inclined Roof Solar Chimney for Natural Ventilation,”Energy and
Buildings , Vol. 38, pp. 1156-1163, 2006.
18. Negishi, K., and Sawada, T., “Heat Transfer Performance of an Inclined Two-Phase Closed Thermosyphon,”Int. J. Heat Mass Transfer. Vol. 26, No. 8, pp. 1207-1213, 1983.
19. Preeda, C., Jongjit, H., Belkacem, Z., Joseph, K., Sombat, T., and Maung, M. W., “Investigation on Thermal Performance of Glazed Solar Chimney Walls,” Solar Energy, Vol. 80, pp. 228-297, 2006.
20. Starner, K. E., and McManus, H. N., “An Experimental Investigation of Free Convection Heat Transfer from Rectangular Fin Arrays,” ASME Journal of Heat Transfer, Vol. 85, pp. 273-278, 1963.
21. Welling, J. R., and Wooldridge, C. B., “Free Convection Heat Transfer Coefficients from Rectangular Vertical Fins,” ASME Journal of Heat Transfer, Vol. 87, pp. 439-444, 1965.
22. Writz, R. A., and Stutzman, R. J., “Experiments on Free Convection
between Vertical Plates with Symmetric Heating” ASME Journal of
Heat Transfer, Vol. 104, pp. 501-507, 1982.
23. Yuncu, H., and Anbar, G., “An Experimental Investigation on Performance of Rectangular Fins on a Horizontal Base in Free Convection Heat Transfer,” Int. J. Heat Mass Transfer, Vol. 33, pp. 507-514, 1998.
24. 劉智仁,“蒸汽腔室於電子冷卻之應用,” 國立成功大學航太空工程研究所碩士論文,7月 2004.
25. 陳德堂,“半弧/圓形無蕊式太陽能熱管集熱器之研製,” 國立
中央大學機械工程研究所碩士論文, 7月2000.
26. 陳琬琳,“雙相流自然對流太陽能集熱器設計參數研究,” 國立
清華大學系統科學系,7月 2000.
27.依日光,“熱管技術理論實務,” 復漢出版社有限公司, 台南市, 1999.
校內：2009-07-19公開校外：2009-07-19公開