Abstract
Following the novel design and structure optimization of heat exchangers to enhance the heat transfer, we present in this chapter some designs of micro-mixer/reactor that we have developed during our research studies, to demonstrate the notion of mass transfer intensification. Three examples will be illustrated: meshed micro-mixer and multi-scale impinging streams mixer/reactor for liquid–liquid applications, and parallel microchannels contactor/reactor for gas–liquid two-phase applications. Each device has an arborescent or lattice structure that we have explored in Chap. 3. Numerical and experimental results on flow distribution, mixing and chemical reaction performances will be presented and discussed. Finally, some reflects on the design and optimization of micro-fluidic devices will be given with the aim of process intensification.
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Notes
- 1.
Geometric dimensions of the single microchannel contactor: Y-type rectangular microchannel with a hydraulic diameter of 667 µm (1000 µm deep, 500 µm wide). Both the gas and liquid inlet sections have lengths of 1.5 cm and the angle between them is 60°. The straight section in the microchannel for gas–liquid contacting is 4.8 cm long.
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Luo, L., Fan, Y., Zhou, X. (2013). Mass Transfer Intensification in Micro-Fluidic Devices. In: Luo, L. (eds) Heat and Mass Transfer Intensification and Shape Optimization. Springer, London. https://doi.org/10.1007/978-1-4471-4742-8_5
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