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Drying of porous medium containing concentration sodium chloride solution

Y. Zhang, X. F. Peng, A. Su, A. S. Mumjudar, D. J. Lee

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

This work experimentally determined drying rates for beds of glass beads containing a concentrated sodium chloride solution and noted the existence of a constant rate period following a falling rate period. A one-dimensional model was developed to interpret the experimental findings. The salt movement carried by up-flow of solution reduced the chemical potential of the solution near the top surface, hence limiting the drying rate. The model suggested that once the salt concentration at the top reached saturation, the process entered the constant rate drying stage. The proposed model reproduced the drying characteristics for the studied medium with a concentrated NaCl system.
Original languageEnglish
Pages (from-to)171-175
JournalDrying Technology
Volume25
Issue number1
DOIs
Publication statusPublished - Jan 2007
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • Chemical potential
  • Concentrated solution
  • Drying
  • Model
  • Porous medium
  • Saturation

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