Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 496310
Title Comparison of first principles model of beer microfiltration to experiments via systematic parameter identification
Author(s) Sman, R.G.M. van der; Willigenburg, G. van; Vollebregt, H.M.; Eisner, V.; Mepschen, A.
Source Journal of Membrane Science 484 (2015). - ISSN 0376-7388 - p. 64 - 79.
DOI http://dx.doi.org/10.1016/j.memsci.2015.03.015
Department(s) FBR Food Technology
VLAG
Biomass Refinery and Process Dynamics
Biobased Chemistry and Technology
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Beer - Fouling - Microfiltration - Shear-induced diffusion
Abstract

A first principles microfiltration model based on shear-induced diffusion is compared to experiments performed on the clarification of beer. After performing an identifiability and sensitivity analysis, the model parameters are estimated using global minimization of the sum of least squares. The model is compared to different series of experiments, where either crossflow or permeate flux is varied. This study is concluded with a parameter study on the scaling of the filtration time with various model parameters. We have found that the filtration time primarily depends on two dimensionless numbers, namely the normalized critical distance for cake layer formation, and the dimensionless time required to plug all pores in the selective layer. We have found that there is an optimal setting of these parameters, rendering a maximal amount of filtrated beer in one cycle.

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