A boundary‐layer model of fluid‐particle mass transfer in fixed beds | Zendy

Carberry James J. | Zendy

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A boundary‐layer model of fluid‐particle mass transfer in fixed beds

Author(s) -

Carberry James J.

Publication year - 1960

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690060323

Subject(s) - mass transfer , boundary layer , reynolds number , exponent , particle (ecology) , diffusion , mechanics , thermodynamics , schmidt number , boundary (topology) , physics , mathematics , mathematical analysis , turbulence , geology , philosophy , linguistics , oceanography

The process of fluid‐particle mass transfer in fixed beds at Reynolds numbers less than 1,000 is viewed in terms of transient molecular diffusion within a boundary layer which is developed and destroyed repeatedly as the fluid journeys through the bed. Literature data support the j factor derived from the premises of the model. The theory predicts a Schmidt number exponent of 2/3 for N Sc ≧ 1; however this exponent should approach 1/2 for N Sc < 1.

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