Analysing extraction uniformity from porous coffee beds using mathematical modelling and computational fluid dynamics approaches.

ABSTRACT: Achieving a uniform extraction of soluble material from a porous matrix is a generic problem in various separation and filtration operations, with applications in the food processing, chemical and pharmaceutical industries. This paper describes models of fluid flow and transport of soluble material within a packed granular bed in the context of coffee extraction. Coffee extraction is described by diffusion of soluble material from particles of one or more representative sizes into fluid flowing through the packed bed. One-dimensional flow models are compared to computational fluid dynamics (CFD) models. A fine and a coarse coffee grind are considered. Model results are compared to experimental data for a packed cylindrical coffee bed and the influence of a change in geometry to a truncated

SUBMITTER: Moroney KM 

PROVIDER: S-EPMC6668809 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature