碩士 / 國立成功大學 / 機械工程學系碩博士班 / 91 / Fluid flow and heat transfer over louver finned-tube heat exchangers under the dry condition were studied numerically and experimentally in the first year. The effects of different geometrical factor, including louver angle (15°,20°,25°), fin pitch (6, 8, 12 fins/inch), and louver pitch (1mm, 0.75mm) are investigated in detail for different Reynolds numbers. Numerical results indicate that both average Nusselt number and pressure drop coefficient are increased as louver angle is increased for the equal louver pitch;while for equal louver angle, they are increased as the fin pitch is decreased, and increased as the louver pitch is decreased. A comparison of the numerical results with the available experimental data was also presented.
Identifer | oai:union.ndltd.org:TW/091NCKU5490096 |
Date | January 2003 |
Creators | Sith-Ming Chen, 陳世明 |
Contributors | Jiin-Yuh Jang, 張錦裕 |
Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
Language | zh-TW |
Detected Language | English |
Type | 學位論文 ; thesis |
Format | 67 |
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