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ISSN Druckformat: 1065-5131
ISSN Online: 1563-5074
Indexed in
Experimental Investigation and Modeling of Boiling Heat Transfer Hysteresis on Porous Surfaces
ABSTRAKT
The paper presents the outcomes of experimental investigations and theoretical analysis of boiling heat transfer on surfaces covered with thin-layer porous structures. The results refer to metal, fibrous porous structures with heterogeneous pore-size distribution. The boiling curves were determined by both increasing and decreasing the heat flux. This procedure helped to reveal the hysteresis phenomena. A new model of type-II boiling heat transfer hysteresis is proposed. The data resulting from the visualization of vapor bubbles departing from the porous layer make it possible to develop the model with only one empirical constant. The results of numerical calculations demonstrated a satisfactory agreement with the observed experimental data.
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Wojcik Tadeusz Michal, Experimental investigations of boiling heat transfer hysteresis on sintered, metal – Fibrous, porous structures, Experimental Thermal and Fluid Science, 33, 3, 2009. Crossref