Measurement of the effective thermal conductivity of a porous medium saturated in different fluids

Harris Eze Imadojemu, L. H. Porter

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

The effects of a saturing fluid's properties on the stagnate effective thermal conductivity of a porouos medium is reported. The effective thermal conductivity of porous material saturated in different fluids were measured using a non-intrusive, transient hot-wire technique. Porous media, consisting of glass beads 5.0 mm and 1.0 mm in diameter, were utilized with four different saturating fluids: air, water, motor oil and ethylene glycol (automotive antifreeze). The effective thermal conductivity appears to increase with increase in the saturating fluid's conductivity. The measured effective thermal conductivities of the different solid/ liquid media are consistent and within the range of the known conductivity of the fluids and the effective conductivity of the solid/liquid media. The values are also in agreement with data reported in the literature.

Original languageEnglish (US)
Pages (from-to)115-122
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume271
StatePublished - Dec 1 1994
EventProceedings of the 6th AIAA/ASME Thermophysics and Heat Transfer Conference. Part 1 (of 10) - Colorado Springs, CO, USA
Duration: Jun 20 1994Jun 23 1994

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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