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Mixed convective heat-transfers in a porous channel with sintered copper beads

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  • Tzeng, Sheng-Chung
  • Jywe, Wen-Yuh
  • Lin, Chu-Wei
  • Wang, Yen-Chan

Abstract

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.

Suggested Citation

  • Tzeng, Sheng-Chung & Jywe, Wen-Yuh & Lin, Chu-Wei & Wang, Yen-Chan, 2005. "Mixed convective heat-transfers in a porous channel with sintered copper beads," Applied Energy, Elsevier, vol. 81(1), pages 19-31, May.
    • Handle: RePEc:eee:appene:v:81:y:2005:i:1:p:19-31
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    Cited by:

    1. Yu, Zhi-Qiang & Feng, Yong-Liang & Zhou, Wen-Jing & Jin, Yu & Li, Ming-Jie & Li, Zeng-Yao & Tao, Wen-Quan, 2013. "Study on flow and heat transfer characteristics of composite porous material and its performance analysis by FSP and EDEP," Applied Energy, Elsevier, vol. 112(C), pages 1367-1375.

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