Rotor-Stator Spinning Disc Reactor: Characterization of the Single-Phase Stator-Side Heat Transfer

The single-phase fluid-stator heat transfer in a rotor-stator spinning disc reactor in dependence on rotational Reynolds number, dimensionless throughput, Prandtl number, and aspect ratio is examined. For the selected ranges of these parameters, an increase in the stator-side Nusselt number with increasing Reynolds number, Prandtl number, and a higher throughput is found. Laminar and turbulent flow regions are observed, which coincide with a throughput- and a rotation-governed heat transfer regime, respectively. A Nusselt correlation to predict the experimental data in the turbulent flow regime within 20% accuracy was established. A distinct increase in the overall volumetric heat transfer coefficient for a rise in Reynolds number was observed, being considerably higher compared to conventional tube reactors and twice as large in contrast with a similar rotor-stator setup.