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Optimal Helical Tube Design for Intensified Heat / Mass Exchangers

Abstract : The search for technological solutions aimed at minimizing the size of a device, known as intensification, is a classic objective of process engineering. In this thesis, the intensification possibilities offered by helical tubes are studied, both for heat and mass exchangers. The use of helical tubes instead of straight tubes is indeed of interest both in terms of increasing the exchange surface per unit volume between the two fluids circulating in the exchanger and by the possibility of increasing the transfers by generating Dean vortices in the tubes. A set of CFD (Computational Fluid Dynamics) type simulations was carried out and compared with experimental results. In the end, on the basis of a systematic approach using correlations, a volume reduction of a factor of 8 was obtained, both for heat exchangers and for membrane contactors.
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Submitted on : Saturday, October 17, 2020 - 10:08:38 AM
Last modification on : Wednesday, November 3, 2021 - 7:09:28 AM
Long-term archiving on: : Monday, January 18, 2021 - 6:07:55 PM


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  • HAL Id : tel-02969949, version 1


Omran Abushammala. Optimal Helical Tube Design for Intensified Heat / Mass Exchangers. Chemical and Process Engineering. Université de Lorraine, 2020. English. ⟨NNT : 2020LORR0091⟩. ⟨tel-02969949⟩



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