Quantitative Analysis of Combined Impingement and Through Air Drying of Paper

Guohua Chen, R. H. Crotogino, W. J.M. Douglas

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


Models were developed and verified to represent the water removal rate data of the two components of combined impingement and through air drying process. Eight physically meaningful parameters were identified, determined, correlated and analyzed. The increasing rate period is extended by impingement water removal. Constant impingement water removal decreases linearly with through flow ratio at a fixed impingement exhaust air flow. Constant through flow water removal is independent of the impingement air. Critical moisture content relates with through flow ratio parabolically. The maximum through flow water removal rate depends on the slope of the paper temperature increase and the extent of the secondary increasing rate period which increases with paper basis weight and drying air temperature, but decreases with through flow ratio and initial moisture content.
Original languageEnglish
Pages (from-to)176-189
Number of pages14
JournalCanadian Journal of Chemical Engineering
Issue number1
Publication statusPublished - 1 Jan 1997
Externally publishedYes


  • Air drying
  • Combined impingement and through drying
  • Impingement
  • Paper
  • Through flow

ASJC Scopus subject areas

  • Chemical Engineering(all)


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