Journal
APPLIED ENERGY
Volume 217, Issue -, Pages 241-248Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2018.02.134
Keywords
Electrochemistry; Microfluidics; Up-scaling; Numerical modelling; High throughput
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Funding
- CRCG of the University of Hong Kong
- Scottish - Hong Kong SFC/RGC [XHKU710/14]
- SFC Project [H15009]
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This paper reports a computational demonstration and analysis of an innovative counter-flow-based microfluidic unit and its upscaling network, which is compatible with previously developed dual-electrolyte protocols and numerous other electrochemical applications. This design consists of multidimensional T-shaped microchannels that allow the effective formation of primary and secondary counter-flow patterns, which are beneficial for both high-performance regenerative H-2/O-2 redox cells and flow batteries at a low electrolyte flow-rate operation. This novel design demonstrates the potential to achieve high overall energy throughput and reactivity because of the full utilization of all available reaction sites. A computational study on energy and pressure loss mechanism during scale-out is also examined, thereby advancing the realization of an economical electrolyte-recycling scheme.
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