3-D Transient conjugated heat transfer and fluid flow analysis for the cooling process of sintered bed

Jiin Yuh Jang, Yu Wei Chiu

研究成果: Article同行評審

55 引文 斯高帕斯(Scopus)

摘要

Three-dimensional turbulent, transient fluid flow and heat transfer analysis over a sintered bed during a cooling process are studied numerically and experimentally. The sintered bed is modeled as a packed 4-row bed of spheres and the conjugated convective heat transfer in the flow field and heat conduction in the spheres are considered also. The effects of two different porosity (Φ = 0.4, 0.5) and three different particle sphere diameters (D = 50 mm, 70 mm and 100 mm) are investigated in detail for the Reynolds number ranging from 1300 to 11,000. It is shown that, the smaller the particle diameter or porosity, the greater the Nusselt number and friction factor are. The numerical results are in good agreement within 15-20% with the experimental data. The correlation equations for the steady-state average mean Nusselt number and friction factor f are obtained as:Nu = frac(1, φ{symbol}) fenced(8.75 + 0.013 Re0.896) f = frac(2.3, Φ) Re- 0.306These correlations are accurate within 7% for 0.4 ≤ Φ ≤ 0.5 and 1300 ≤ Re ≤ 11000.

原文English
頁(從 - 到)2895-2903
頁數9
期刊Applied Thermal Engineering
29
發行號14-15
DOIs
出版狀態Published - 2009 十月

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 工業與製造工程

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