Flow boiling in straight heated tubes under microgravity conditions
Résumé
Forced convective boiling experiments with HFE-7000 were conducted in earth gravity and under microgravity conditions. The experiment mainly consists in the study of a boiling flow (liquid-vapour flow) through a 6 mm diameter sapphire tube uniformly heated by an ITO coating. Measurements of pressure drops (on an adiabatic section), void fraction and wall and liquid temperatures are provided. High-speed movies of the flow are also taken. The data were collected in normal gravity and during a series of parabolic trajectories flown in an airplane. Flow visualizations, temperature, pressure and void fraction measurements are analysed to obtain flow pattern, heat transfer, film thickness and wall friction data.
Origine | Fichiers produits par l'(les) auteur(s) |
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Fait partie de hal-01442098 Texte International Conference On Multiphase Flow Icmf. International Conference on Multiphase Flow 2013 May 26-May 31, 2013, Jeju, Korea. ICMF 2013 International Conference on Multiphase Flow, May 2013, Jeju, South Korea. 2 vol., 2013. ⟨hal-01442098⟩