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dc.contributor.authorFarr, R.S.
dc.contributor.authorGoh, Aaron
dc.contributor.authorYong, F.Y.
dc.date.accessioned2017-01-30T13:54:46Z
dc.date.available2017-01-30T13:54:46Z
dc.date.created2015-03-03T20:16:13Z
dc.date.issued2012
dc.identifier.citationFarr, R.S. and Goh, A. and Yong, F.Y. 2012. Use of the Weibull Equation to Approximate Diffusive Release from Particles in a Closed System. Computers and Chemical Engineering. 39: pp. 33-40.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/36263
dc.identifier.doi10.1016/j.compchemeng.2011.09.012
dc.description.abstract

We consider the problem of Fickian diffusion of a solute (or heat) into or out of a suspension of particles, in a well-mixed solvent. By combining a simple numerical scheme with a Laplace transform method, we are able to efficiently solve this problem for different particle volume fractions (including accumulation of solute in the liquid phase), shapes (spheres, cubes and cylinders of different aspect ratios) and particle size distributions (assumed to be log-normal). We approximate the results by a Weibull function, and thereby provide a physical calibration for the parameters in this function when used as an approximation for our solutions. We test our calculation by measuring salt release profiles from different size distributions of agar cubes, and then use the predicted Weibull equation to deduce the diffusivity of salt in this material.

dc.publisherElsevier
dc.titleUse of the Weibull Equation to Approximate Diffusive Release from Particles in a Closed System
dc.typeJournal Article
dcterms.source.volume39
dcterms.source.startPage33
dcterms.source.endPage40
dcterms.source.issn00981354
dcterms.source.titleComputers and Chemical Engineering
curtin.accessStatusFulltext not available


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