https://scholars.lib.ntu.edu.tw/handle/123456789/611995
標題: | Mixed convective heat-transfers in a porous channel with sintered copper beads | 作者: | Tzeng S.-C. Jywe W.-Y. Lin C.-W. Wang Y.-C. Wen-Yuh Jywe |
關鍵字: | Heat convection;Heat exchangers;Heat flux;Heat transfer;Sintering;Thermal effects;Flow rate;Heat sink;Heat-transfer coefficients;Solid phases;Porosity;convection;porous pipe | 公開日期: | 2005 | 卷: | 81 | 期: | 1 | 起(迄)頁: | 19-31 | 來源出版物: | Applied Energy | 摘要: | For a fixed porosity, a higher flow rate causes an increase in the efficiency of the heat exchange between the fluid and the solid phases for the heat sink. As the porosity of the sintered porous medium decreases, the specific contact surface of the fluid increases. This causes a higher heat-transfer rate between the fluid and the solid phases for a constant flow-rate. The sintered test section is made of three diameters of copper beads of 0.71, 0.84 or 1.15 mm. The characteristics of the wall temperature-distribution with a constant heat-flux were measured. This study also reveals the local wall temperature-distributions and heat-transfer coefficients for various Reynolds numbers and heat fluxes. ? 2004 Elsevier Ltd. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-11144233699&doi=10.1016%2fj.apenergy.2004.06.004&partnerID=40&md5=4f4a1229e1e99f8c50f630bc82471d92 https://scholars.lib.ntu.edu.tw/handle/123456789/611995 |
DOI: | 10.1016/j.apenergy.2004.06.004 |
顯示於: | 機械工程學系 |
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