Heat and Mass Transfer to Particles in One-Dimensional Oscillating Flows

Abstract

The heat and mass transfer to solid particles in one-dimensional oscillating flows are investigated in this work. A meta-correlation for the calculation of the Nusselt number (Sherwood number) is derived by comparing 33 correlations and data point sets from experiments and simulations. These models are all unified by their dependencies on the amplitude parameter 10−3≤ϵ≤103 and the Reynolds number 10−1≤Re≤106, while the ϵ-Re plane is applied as a framework in order to graphically display the various models. This is the first study to consider this problem in the entire ϵ-Re plane quantitatively while taking preexisting asymptotic models for various areas of the ϵ-Re plane into account.

Experimental Investigation of a Pulsation Reactor via Optical Methods

“…For example, Heidinger et al [7] describe the synthesis of zirconia and silica nanoparticles in the PR. The remarkable product properties can be attributed to the process parameters in a PR, i.e., periodically varying pressure, flow velocity, etc., and the resulting enhanced and persistent heat and mass transfer [7,9,10]. The process conditions can be controlled by setting the operating parameters and choosing the geometry of the combustion chamber and the tailpipe in such a way that a certain resonance frequency naturally tends to develop.…”

Special Issue “Multiphase Flows and Particle Technology”

“…With accurate theories and models, we can enhance the control and efficiency of heat and mass transfer processes, leading to more sustainable and environmentally friendly industrial production. Michael Beckmann et al [1] conducted a study into the heat and mass transfer of solid particles in one-dimensional oscillatory flows. By comparing experimental and simulated data, they derived elemental correlations for calculating Nusselt (Sherwood) numbers.…”

Effects of Fuel Input on Pulsation Reactor Behavior—An Experimental Study

“…For example, Heidinger et al [8] describe the upscaling of the synthesizing process of zirconia and silica from the laboratory-scale flame spray pyrolysis [9,10] to the PR. The outstanding product properties might be attributed to the special process parameters in a PR, i.e., the periodically varying flow conditions and the resulting enhanced and persistent heat and mass transfer [11][12][13][14]. Therefore, understanding how the PR operation parameters relate to the process parameters is crucial in the pursuit of configurable and tailored product proprieties [4].…”