Vibrations to Unblock Chemical Microreactors

Excellent articulation between falsifiable predictions, GO/NO-GO criteria and experimental pivots. This implicit Bayesian structure forces a clear decision at each phase, which is rare and highly robust.

The hypothesis proposes an elegant and physically grounded synthesis of three pillars of granular mechanics (the Liu & Nagel jamming diagram, the Janssen effect, and vibration-induced fluidisation) to address a concrete problem in process engineering (clogging in microreactors). This theoretical framing is coherent and innovative within the domain of chemical engineering.

The idea of using vibration to control jamming in microchannels is conceptually interesting and is grounded in well-established principles of granular physics (the Janssen effect, jamming phase diagrams).

A clear and quantifiable addressable market exists: continuous micro-reactors for the pharmaceutical sector (APIs, intermediates) and fine chemistry (dyes, polymers). Industry leaders such as Corning (Advanced-Flow), Lonza (FlowPlate), Ehrfeld, and Uniqsis experience clogging events that reduce yield by 15–30% per batch. A vibration-based anti-clogging system would constitute a strong differentiator, sold as an option or retrofit (€5k–€20k per unit).

The hypothesis is falsifiable and is supported by a clear physical mechanism (Janssen, jamming phase diagrams), a feature highly valued by ERC and ANR reviewers for its scientific rigour.