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Multi-phase flow and drying characteristics in a semi-circular impinging stream dryer

  • X. L. Huai
  • , X. F. Peng
  • , G. X. Wang
  • , D. Y. Liu
  • CAS - Institute of Engineering Thermophysics
  • Tsinghua University

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

A physical model was proposed to describe granular material drying in a semi-circular impinging stream dryer, and the multi-phase flow characteristics as well as the heat and mass transfer were numerically investigated. Specially, the influence of various factors (inlet air temperature, mass flow-rate ratio, initial moisture content etc.) on drying process was inspected. The results indicate that constant drying rate period does not exist in a semi-circular impinging stream dryer. Appropriate curvature radius, flow-rate ratio, air velocity and higher inlet air temperature should be chosen for improving the drying performance, and decreasing the energy consumption and operation cost. The numerical predictions were compared with the available experimental results, and they are in quite good agreement with each other.

Original languageEnglish
Pages (from-to)3061-3067
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume46
Issue number16
DOIs
StatePublished - Jul 2003

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Heat and mass transfer
  • Multi-phase flow
  • Semi-circular impinging stream drying
  • Unsteady drying process

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