evaporimi

Evaporimi is a theoretical mechanism in fluid dynamics describing selective, localized evaporation at engineered interfaces within microstructured devices to enable energy-efficient separation of liquid mixtures.

It relies on patterns of coatings and porous materials to create controlled vapor pathways; uses capillary wicking and thermo-hydraulic feedback; vapor is evacuated through low-pressure channels, maintaining a continuous evaporation front while the liquid replenishes at the meniscus. Selectivity arises from differences in volatility and surface-energy interactions.

The concept emerged in theoretical works in 2022, with the first laboratory demonstrations in 2024 showing proof of principle for binary mixtures. Current research focuses on scaling, integration with microreactors, and improving process stability under varied temperatures and pressures.

Potential applications include chemical separation in compact reactors, pharmaceutical purification, and advanced cooling systems for electronics. Advantages claimed include lower energy use, reduced solvent loss, and a smaller footprint; challenges include controlling cross-talk between channels, material compatibility with aggressive solvents, and fouling of porous structures.

Related topics include evaporation, distillation, phase-change cooling, and microfluidics.