Three-dimensional thermal-hydraulic performance analysis of high performance louvered-finned heat exchanger / 高效率百葉窗鰭片式熱交換器之三維熱液動性能分析

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.

Identiferoai:union.ndltd.org:TW/091NCKU5490096
Date January 2003
CreatorsSith-Ming Chen, 陳世明
ContributorsJiin-Yuh Jang, 張錦裕
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format67

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