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State of knowledge on the heat and mass transfer coefficients at the air-solid interface for a smooth single solid.

Etat des connaissances sur les coefficients de transfert de chaleur et de matière à l'interface air-solide pour un objet isolé lisse.

Author(s) : KONDJOYAN A., DAUDIN J. D.

Type of article: Article

Summary

The paper reviews the notion of transfer coefficient at the air-solid interface, emphasises the contradictions of literature and studies in particular the effect of free stream turbulence which is often neglected in chemical and food engineering. The notion of transfer coefficient hides the complixity of the flow phenomena. Not taking into account turbulence intensity which value is high in industrial flows (10 to 60%) could lead to underestimation of transfer coefficients of 30 to 150%.

Details

  • Original title: Etat des connaissances sur les coefficients de transfert de chaleur et de matière à l'interface air-solide pour un objet isolé lisse.
  • Record ID : 1995-2840
  • Languages: French
  • Source: Entropie - vol. 30 - n. 186
  • Publication date: 1994
  • Document available for consultation in the library of the IIR headquarters only.

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