不同性能風扇對熱傳增強鰭片之性能研究

NCUIR > Engineering College > Energy of Mechatronics > Electronic Thesis & Dissertation > Item 987654321/77175

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/77175

Title:	不同性能風扇對熱傳增強鰭片之性能研究
Authors:	林立揚;LIN, LI-YANG
Contributors:	能源工程研究所
Keywords:	低風速;熱傳增強;百葉窗型鰭片;斷續型鰭片;風扇;low air velocity;heat transfer enhancement;louver fin;offset strip fin;fan
Date:	2018-08-13
Issue Date:	2018-08-31 14:16:46 (UTC+8)
Publisher:	國立中央大學
Abstract:	本研究之目的為探討於低風速下不同風扇特性對鰭片熱傳性能影響，以高風壓及低風壓風扇分別與帄板鰭片、斷續型鰭片及百葉窗型鰭片進行測試。由熱傳實驗結果得知，於低風壓風扇測試下，斷續型鰭片及百葉窗型鰭片由於壓損所造成的流量下降，相較於對帄板鰭片之熱傳增強效果更大，使得鰭片性能不佳；而高風壓風扇測試結果，於帄板鰭片、斷續型鰭片及百葉窗型鰭片，因流量差異較小，使熱傳增強鰭片可表現優於帄板鰭片的熱傳性能。此外，風扇與鰭片需配置合適之間距，且間距對熱傳增強鰭片影響較小；而高風壓風扇若降低其輸入功率，因其壓力損失較多，此情況下帄板鰭片性能優於熱傳增強鰭片。;The purpose of research is to discuss the effect of different fan characteristics on fin heat transfer performance. Using high-pressure and low-pressure fan to do experiment with plain fin, offset strip fin and louver fin. From the result of heat transfer, on low-pressure fan experiment, the louver fin and offset strip fin have a lower flow rate due to pressure loss, and the effect of the lower flow rate is much larger than the heat transfer enhancement effect to plain fin.Therefore, the performance of the plain fin is better than offset strip fin and louver fin under the low wind speed fan. With high-pressure fan experiment, heat transfer enhancement fin have a small difference in flow rate, so that the heat transfer enhancement fins can exhibit better heat transfer performance than plain fin. In addition, the fan and the fin need to be properly spaced, and the spacing has less influence on the offset strip fin and louver fin. If the high-pressure fan reduces its input power, its pressure loss is higher. In this case, the plain fin performance is better than the heat transfer enhancement fin。
Appears in Collections:	[Energy of Mechatronics] Electronic Thesis & Dissertation

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