Experimental Investigation of Convection Heat Transfer of CO2 at Super-Critical Pressures in Vertical Mini Tubes and in Porous Media

P. X. Jiang, Y. J. Xu, J. Lv, Y. F. Shi, Shuisheng He, J. D. Jackson

Research output: Contribution to journalArticle

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Abstract

Convection heat transfer Of CO2 at super-critical pressures in vertical tubes with diameters of 0.948 and 4 mm and in porous media with particle diameters of 0.2-0.28 mm was investigated experimentally. The local heat transfer coefficients, fluid bulk temperatures, and wall temperatures were measured in the tests which investigated the effects of inlet temperature, mass flow rate, and heat flux on the convection heat transfer in the mini-tube and the porous tube. The variable thermophysical properties of super-critical CO2 and buoyancy significantly influenced the convection heat transfer in the vertical mini-tubes and in the porous media. The convection heat transfer in the porous tubes was very different from that in empty tubes. (C) 2004 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1255-1270
Number of pages15
JournalApplied Thermal Engineering
Volume24
DOIs
Publication statusPublished - 2004

Keywords

  • convection heat transfer
  • super-critical pressures
  • mini-tube
  • porous media
  • FLOW
  • FLUID

Cite this

Experimental Investigation of Convection Heat Transfer of CO2 at Super-Critical Pressures in Vertical Mini Tubes and in Porous Media. / Jiang, P. X.; Xu, Y. J.; Lv, J.; Shi, Y. F.; He, Shuisheng; Jackson, J. D.

In: Applied Thermal Engineering, Vol. 24, 2004, p. 1255-1270.

Research output: Contribution to journalArticle

Jiang, P. X. ; Xu, Y. J. ; Lv, J. ; Shi, Y. F. ; He, Shuisheng ; Jackson, J. D. / Experimental Investigation of Convection Heat Transfer of CO2 at Super-Critical Pressures in Vertical Mini Tubes and in Porous Media. In: Applied Thermal Engineering. 2004 ; Vol. 24. pp. 1255-1270.
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