A numerical investigation of the effect of heating methods on saturated nucleate pool boiling |
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| Affiliation: | 1. Laboratoire de Chimie des Matériaux, Université de Carthage, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia;2. General Education, Faculty of Science and Technology, Seikei University, Kichijoji-kita machi, Musashino 180-8633, Japan;3. Laboratoire de Chimie Organométallique de Surface (LCOMS), Ecole Supérieure de Chimie Physique Electronique, 69626 Villeurbanne Cedex, France;4. Department of Chemistry, University of Washington, Seattle, WA, United States;5. Université de Lorraine, CNRS, CRM2, F-54000 Nancy, France;6. Laboratoire des Matériaux Utiles, Institut National de Recherche et d''Analyse physico-chimique (INRAP), Sidi Thabet, Tunis, Tunisia |
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| Abstract: | Using a numerical model, the effect of heating methods on saturated nucleate pool boiling is investigated parametrically for smooth and rough nickel and copper heater plates. The boiling curve moved right with decreasing thickness for the smooth and rough nickel and copper heaters in the constant-heat-flux heating method. This trend was reversed in the constant-temperature heating method; the boiling curved shifted left with decreasing heater thickness. However, the later trend was not affected by the heater material and thickness and the surface roughness (mean cavity radius). The boiling curves were identical for the constant internal generation rate and the constant-heat-flux heating method. The use of ac instead of dc resistive heating caused the boiling curve generally to move left. This behavior was not linear with the heat flux, heater material, or surface conditions. No hysterisis was found when the heat flux was increased and then decreased gradually to original values. |
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