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โœฆ   LIBER   โœฆ

The effect of surface chemical reactions on interphase mass and energy transfer

โœ Scribed by G. Standart


Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
706 KB
Volume
22
Category
Article
ISSN
0009-2509

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โœฆ Synopsis


The relations developed earlier from the irreversible thermodynamics of transport processes on the phase boundary of heterogeneous flow systems are applied to the analysis of the influence of surface chemical reactions on interphase heat (energy) and especially mass transfer. Such interactions arise in the case of the transport of "limited-transfer" constituents which participate in the reaction(s) but whose solubility, or in general, concentration in one or the other phase is negligible so that its mass flux is also negligible on that side of the boundary. Several basic cases are analysed in detail in terms of two alternate formulations of a reference chemical equilibrium state and it is found that the surface reaction adds a chemical reaction resistance to the direct physical transfer resistance when the limited-transfer constituent actually crosses the phase botmdary. The mass transfer driving forces are expressed in terms of suitable constituent electrochemical potentials or activities and although the treatment is largely limited to one system of driving forces and fluxes, it is shown how the various types of interphase mass and energy transfer driving forces and fluxes introduced earlier can be employed.


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โœ E.N. Lightfoot ๐Ÿ“‚ Article ๐Ÿ“… 1962 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 388 KB

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