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Flow boiling in straight heated tubes under microgravity conditions

Abstract : 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.
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Submitted on : Thursday, December 12, 2013 - 2:59:46 PM
Last modification on : Wednesday, October 20, 2021 - 1:42:57 AM
Long-term archiving on: : Friday, March 14, 2014 - 11:16:00 AM

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  • HAL Id : hal-00917818, version 1
  • OATAO : 10464

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Marine Narcy, Erik de Malmazet, Catherine Colin. Flow boiling in straight heated tubes under microgravity conditions. 8th International Conference on Multiphase Flow - ICMF 2013, May 2013, Jeju, South Korea. pp. 1-10. ⟨hal-00917818⟩

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