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Heat flux determination for nucleate boiling in subsurface tunnel structures |
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| Authors: | Robert Pastuszko Mieczyslaw E. Poniewski Monika Koziol |
| Affiliation: | 1. Kielce University of Technology, Kielce, Poland 2. Warsaw University of Technology, Plock Campus, Plock, Poland 3. Nowy Dwor Mazowiecki, Poland |
| Abstract: | The paper focuses on theoretical analysis of boiling heat transfer on surfaces with tunnel structures formed by fins with microfins and covered with perforated foil. The investigations were conducted for water, ethanol and R-123. The theoretical heat flux, based on modified Chien and Webb model, when compared to the experiments, showed satisfying agreement in low and medium ranges for water and ethanol, and in all heat flux ranges for R-123. |
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