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Dataset for the Heat-Up and Heat Transfer towards Single Particles and Synthetic Particle Clusters from Particle-Resolved CFD Simulations

Author

Listed:
  • Mario Pichler

    (Institute of Chemical, Environmental & Bioscience Engineering, Technische Universität Wien, Getreidemarkt 9/166, 1060 Vienna, Austria
    These authors contributed equally to this work.)

  • Markus Bösenhofer

    (Institute of Chemical, Environmental & Bioscience Engineering, Technische Universität Wien, Getreidemarkt 9/166, 1060 Vienna, Austria
    Area 4—Simulation and Analyses, K1-MET GmbH, Stahlstraße 14, 4020 Linz, Austria
    These authors contributed equally to this work.)

  • Michael Harasek

    (Institute of Chemical, Environmental & Bioscience Engineering, Technische Universität Wien, Getreidemarkt 9/166, 1060 Vienna, Austria)

Abstract

Heat transfer to particles is a key aspect of thermo-chemical conversion of pulverized fuels. These fuels tend to agglomerate in some areas of turbulent flow and to form particle clusters. Heat transfer and drag of such clusters are significantly different from single-particle approximations commonly used in Euler–Lagrange models. This fact prompted a direct numerical investigation of the heat transfer and drag behavior of synthetic particle clusters consisting of 44 spheres of uniform diameter (60 μ m). Particle-resolved computational fluid dynamic simulations were carried out to investigate the heat fluxes, the forces acting upon the particle cluster, and the heat-up times of particle clusters with multiple void fractions (0.477–0.999) and varying relative velocities (0.5–25 m/s). The integral heat fluxes and exact particle positions for each particle in the cluster, integral heat fluxes, and the total acting force, derived from steady-state simulations, are reported for 85 different cases. The heat-up times of individual particles and the particle clusters are provided for six cases (three cluster void fractions and two relative velocities each). Furthermore, the heat-up times of single particles with different commonly used representative particle diameters are presented. Depending on the case, the particle Reynolds number, the cluster void fraction, the Nusselt number, and the cluster drag coefficient are included in the secondary data.

Suggested Citation

  • Mario Pichler & Markus Bösenhofer & Michael Harasek, 2022. "Dataset for the Heat-Up and Heat Transfer towards Single Particles and Synthetic Particle Clusters from Particle-Resolved CFD Simulations," Data, MDPI, vol. 7(2), pages 1-13, February.
    • Handle: RePEc:gam:jdataj:v:7:y:2022:i:2:p:23-:d:749286
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    References listed on IDEAS

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    1. Yin, Chungen, 2015. "On gas and particle radiation in pulverized fuel combustion furnaces," Applied Energy, Elsevier, vol. 157(C), pages 554-561.
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