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THE EFFECT OF TEMPERATURE ON THE PERMEABILITY OF A POROUS MATERIAL.

Author(s) : PULKRABEK W. W., IBELE W. E.

Type of article: Article

Summary

THE EFFECT OF TEMPERATURE ON THE FLOW OF AIR, NITROGEN, HELIUM AND ARGON THROUGH CONSOLIDATED POROUS MEDIA HAS BEEN STUDIED EXPERIMENTALLY. THE WORK COVERS A TEMPERATURE RANGE OF 255-1,520 K AT1 ATM. THE POROUS MEDIUM WAS ALUMINIUM OXIDE CERAMIC WITH A POROSITY RANGE OF 38.1-49.8%. THE EFFECT OF THE < SLIP > CORRECTION TERM USED TO EXPLAIN THE CHANGE IN PERMEABILITY IN THE POROUS FLOW EQUATIONS WAS STUDIED. THIS PERMEABILITY CORRECTION TERM DEPENDS ON THE MEAN FREE PATH OF THE GAS AND WOULD BE EXPECTED TO INCREASE WITH TEMPERATURE. THE OBSERVED PERMEABILITY SHOULD BE DIFFERENT FOR EACH GAS. BOTH OF THESE EXPECTATIONS WERE FOUND CONSISTENT WITH THE MICROSCOPIC ASSUMPTIONS. PLOTS ARE GIVEN SHOWING THE RELATIONSHIP OF PERMEABILITY AND TEMPERATURE FOR THE 4 GASES.

Details

  • Original title: THE EFFECT OF TEMPERATURE ON THE PERMEABILITY OF A POROUS MATERIAL.
  • Record ID : 1988-0818
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 30 - n. 6
  • Publication date: 1987

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