Pressure driven inside feed (PDI) hollow fibre filtration: Optimizing the geometry and operating parameters

Xu, Qian; Pearce, Graeme; Field, Robert W.

doi:10.1016/j.memsci.2017.05.010

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Cited by 8 publications

(2 citation statements)

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“…There have been numerous studies into the mathematical modelling of vertically stacked direct-flow filtration devices (Herterich et al. 2017; Wang, Mondal & Griffiths 2017; Xu, Pearce & Field 2017). Of particular relevance to this paper is Herterich et al.…”

Section: Introductionmentioning

confidence: 99%

Optimising the flow through a concertinaed filtration membrane

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Optimising the flow through a concertinaed filtration membrane

et al. 2021

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“…As a reliable mathematical process description exists, the focus of this work is not on modeling but on proposing a new optimization method, which is a common goal in process systems engineering [13]. Even though different works have aimed at optimizing SHFMs [2,[14][15][16][17], this is the first study where optimal control theory is applied to hollow fiber membranes. In general, dynamic programming or optimal control methods are only rarely encountered in filtration research.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Axial Resistance Profile of Submerged Hollow Fiber Membranes

Kühn

Briesen

2020

Processes

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Submerged hollow fiber membranes (SHFMs) are used for a wide variety of applications. Their applicability and their advantages, however, depend crucially on the prevailing hydrodynamics within single fibers. In this respect, the non-uniform distribution of transmembrane flux is a known problem related to inhomogeneous membrane fouling and disadvantages for cleaning. To address this problem, we propose an approach to homogenize transmembrane flux by varying the local membrane resistance using optimal control methods for the first time in SHFM research. Based on an established model, different scenarios are optimized, namely with different fiber lengths and inner radii. In addition, a double-end setup is explored. It is shown that the optimization goal is reached very well in all tested cases, which underlines the general validity of our strategy. Further uses and extensions of the optimization method are provided, as well as hints for the practical implementation of the suggested measures.

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