Porous glass electroosmotic pumps: design and experiments.

摘要: An analytical model for electroosmotic flow rate, total pump current, and thermodynamic efficiency reported in a previous paper has been applied as design guideline to fabricate porous-structure EO pumps. We have fabricated sintered-glass pumps that provide maximum rates pressure capacities of 33 ml/min 1.3 atm, respectively, at potential 100 V. These are designed be integrated with two-phase microchannel heat exchangers load order W greater. Experiments were conducted various geometries using relevant, practical range working electrolyte ionic concentration. Characterization the pumping performance discussed terms porosity, tortuosity, pore size, dependence zeta on bulk ion density solution. The effects rate current analyzed compared prediction. In particular, we explore important tradeoff between increasing capacity obtaining adequate efficiency. This research aims demonstrate EOF systems investigate optimal designs. also present gas recombination device makes possible implementation this technology into closed-flow loop where electrolytic gases converted water reclaimed by system.