PREDICTIONS OF THERMAL CHARACTERISTICS FOR MIXED POROUS MEDIA

This study characterizes the thermal conductivity properties for a binary mixture of dry porous materials. This was done by measuring the overall thermal conductivities for different composites of two porous materials. The heat-transfer mechanism within such binary mixtures was investigated, and a developed equation was used to describe the experimental data; this is compared with the GEM (general effective media) equation. It was found that the low-conductivity material dominates the heat-conduction process in the binary mixture. To delineate the mixing characteristics, the concept of basic heat-transfer routes was introduced to consider the one-dimensional heat flow parallel to the mean temperature gradient under ideal particle conditions. These and other study findings are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Deng, Yue
  • Fedler, C B
  • Gregory, J M
• Publication Date: 1992-5

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 185-195
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 4
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Composite materials; Driver performance; Drivers; Forecasting; Personnel performance; Porous materials; Thermal conductivity
• Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00621904
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1992 12:00AM