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標題: 散熱器對熱電致冷器冷卻性能影響探討
Effect of Heat Sink on Cooling Performance of Thermoelectric Coolers(TEC) Study
作者: 鄭建明
Zheng, Jian-Ming
關鍵字: heat sink;散熱器;thermoelectric cooler;熱電致冷器
出版社: 機械工程學系所
引用: 1. 電子設計資訊網,郭常祐“PC散熱技術演化歷程” 2. 吳子偉、劉嘉吉“淺談熱電物理及氧化物熱電材料”國立彰化師範大學物理研究所(2006) 3. Bojic , M. Savanovic, G. , Trifunovic, N., Radovic, L., Saljic, D. Thermoelectric cooling of a train carriage by using a coldness-recovery device. Energy 22(1997)pp.493 - 500 4. Huang , B. J., Duang , C. L. System dynamic model and temperature control of a thermoelectric cooler. International Journal of Refrigeration 23(2000)pp.197-207 5. Khire, R. A., Messac, A., Dessel, S, V. Design of thermoelectric heat pump unit for active building envelope systems. International Journal of Heat and Mass Transfer 48(2005)pp.4028–4040 6. Maruyama, S., Nino, E., Ruocco, G. Analysis of thermoelectrical device for active heat transfer coutrol. Int.J.Therm.Sci. 40(2001)pp.911-916 7. Khattab, N.M., Shenawy, E. T. E1 Optimal operation of thermoelectric cooler driven by solar thermoelectric Energy Conversion and Management , 47(2006)pp.407-426 8. Cheng, Y. H., Lin, W. K. Geometric optimization of thermoelectric coolers in a confined volume using genetic algorithms. Applied Thermal Engineering 25(2005)pp.2983-2997 9. Gao, M. R. , Volklien ,F. Integrated thin film thermoelectric cooler. Electronics Letters 34(1998)pp.222-232 10. Nuwayhid, R. Y., Hamade, R. Design and testing of a locally made loop-type thermosyphonic heat sink for stove-top thermoelectric generators. Renewable Energy 30(2005)pp.1101-1116 11. Jonsson, H., Palm, B. Thermal and Hydraulic of Plate Fin and Strip Fin Heat Sinks under Varying Bypass Conditions. Intersociety Conference on Thermal Phenomena,(1998) pp.96-103 12. Hagen, K. D. Heat Transfer with Applications. Prentice Hall International,Inc.1999. 13. Haper, D. R. , Brown, W. B. Mathematical Equations for Heat Conduction in the Fin if Air Cooled Engines. NACA Report, No.158 1992 14. Sparrow, E. M., Chyu, M. K. Conjugate Forced Convection-Conduction Analysis of Heat Transfer in a Plate Fin. ASME Journal of Heat Transfer 104(1982)pp.204-206, 15. Lee, S. Calculating Sperading Resistance in Heat Sinks. Electronics-Cooling Vol. 4 No.1, 1998 16. Chein, R., Huang, G. Thermoelectric cooler application in electric cooling. Applied Thermal Engineering 24(2004)pp.2207-2217 17. 電子設計資訊網,陳啟川、劉君愷、鄭憶湘“微熱電致冷器之特性及發展” 18. 陳業豐“結合微流熱沉之熱電冷卻裝置性能探討”中興大學碩士論文,2004年。 19. 張志新 “放射狀鰭片散熱器之數值模擬與參數探討”台灣科技大學碩士論文,2003年。 20. 電子設計資訊網,張淵仁、陳瑤明、賴錦川、黃文宏、吳聖俊“新型熱導管設計與應用”,
由實驗數據可知,散熱器熱阻大小對一固定冷凍空間之冷卻溫度高低確實有密切關係,熱阻較低者較能得到較低的冷卻溫度。其次,TEC冷卻效果與操作電流大小也息息相關,經實驗比較驗證,操作電流約為TEC最大電流之60 ~ 70 ﹪。在本研究中可發現,由實驗所得冷卻溫度穩定時間會比由理論模式所運算結果慢且溫度也無法如運算值低。然而,我們懷疑市售散熱器標稱熱阻值可信度,因此,試著修正散熱器標稱熱阻值,經修正後,再由實驗證實冷卻溫度已趨近於理論運算值。

The major goal of this study is to investigate the effect of heat sink performance on the cooling capacity of a thermoelectric cooling module(TEC). The temperature variations of a fixed-volume space cooled by various combinations of TEC and heat sinks are experimentally measured. A simplified theoretical model that predicting the temperature variation inside the cooled space is also proposed and verified by the experimental data.

From the measured data, it is seen that lower temperature of the cooled space can be reached when the heat sink has lower thermal resistance. Moreover, cooling performance of TEC is also related to its operation current. The current that produces the maximum cooling capacity is about 60~70% of the maximum operation current reported by the TEC supplier.

By comparing the results predicted by the simplified theoretical model with those of experimental measurements, it is found that the theoretical model over-predicted the cooling performance . The reason is attributed to the incorrect thermal resistance data provided by the heat sink manufacturers.
其他識別: U0005-2507200718151200
Appears in Collections:機械工程學系所

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