The effect of pseudo-unsteady flows and particle residence time on the performance of cyclonic solid-liquid separators (FES-PhD-2425-04) University of Greenwich in United Kingdom

Rapidly swirling flows in cyclonic devices create a radial acceleration field that causes materials with different densities to segregate. Initially, this method was used to separate solid particles from liquids and gases, akin to centrifugal separation of dust from air. This technology found a wide range of applications, from dehydration, particle segregation and classification, to liquid-liquid separation applications in many the industries, such as water and wastewater treatment, mining, paper and food manufacturing, and many others. Cyclonic devices are being used in many industries for free gas removal. This was investigated in some of the primary supervisor’s past work on liquid-liquid separation. Imagine challenging a long-held belief in fluid process engineering, where it has always been perceived that a steady flow in a cyclone offers the best performance of the device, but our initial experiments suggest that performances can be enhanced with new operational regimes. This investigation aspires to develop new operational methods to enhance and widen the performance envelop of such devices. This can, potentially, change the way hydrocyclones are designed and operated, making them more attractive to stakeholders in the various industries that use such technology.

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