Doctoral Student Stefan Heidinger presents a new publication

The latest paper entitled "Heat and Mass Transfer to Particles in One-Dimensional Oscillating Flows" (DE: "Wärme- und Stoffübertragung an Partikeln in eindimensional oszillierenden Strömungen“) by doctoral student Stefan Heidinger (Subproject A2: Theoretical and experimental investigation of process boundary conditions in pulsating flows for the production of novel oxidation catalysts) and the Chair of Energy Process Engineering has now been published.

The paper presents a meta-study of heat and mass transfer models for particles in oscillating flows. 33 data sets from the literature were considered and two meta-correlations (for particles oscillating in a gas and for particles oscillating in a liquid) were found. The paper builds directly on the previously published paper ("Simple Particle Relaxation Modeling in One-Dimensional Oscillating Flows", available online here) and again uses the ε-Re level as a unifying classification basis. Each model (dataset) considered covers only a small part of this parameter field, while the found meta-correlations can be applied to the entire plane. It has been shown that the heat and mass transfer can be modeled for particles with large oscillations (ε >> 1), whereas it is reduced for particles with very small vibration amplitudes (ε << 1). For ε ≈ 1, however, the heat and mass transfer is significantly intensified compared to a quasi-stationary consideration. The results of the paper can be used e.g. for process optimization of pulsation reactors (presented in our first paper "Material Treatment in the Pulsation Reactor—From Flame Spray Pyrolysis to Industrial Scale", available online here).

The new paper is available online here.