An optimization of intermittent corn drying in a laboratory scale thin layer dryer

Q. Zhang, J. B. Litchfield

Research output: Contribution to journalArticle

Abstract

An intermittent corn drying process of drying-tempering-drying in a laboratory scale thin layer dryer was optimized. A time lag function was developed to describe the influence of the tempering period on the drying rate in the post-tempering drying period. Three dryer control strategies (1) a drying-rate-first strategy, (2) an energy-efficiency-first strategy, and (3) an equal-importance (rate/efficiency) strategy were investigated. Results showed that intermittent drying processes were optimal except when a high drying rate was desired.

Original languageEnglish (US)
Pages (from-to)383-395
Number of pages13
JournalDrying Technology
Volume9
Issue number2
DOIs
StatePublished - Mar 1991

Keywords

  • Tempering
  • control
  • multi-stage drying
  • strategy
  • time lag

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

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