Longitudinal and transverse pressure-driven vortices induced by shear instabilities behind vortex generators play a crucial role in convective transport phenomena. The proven influence of these turbulence promoters on heat and mass transfer enhancement has led to their incorporation in modern multifunctional heat exchangers/reactors. The purpose of this work is to demonstrate experimentally the effects of hydrodynamics on the transfer processes accompanying such flows. The high-efficiency vortex (HEV) is an innovative static mixer and a low-energy-consumption heat exchanger designed to exploit these types of vortices. Results obtained in turbulent flow with embedded vorticity in an HEV static mixer are compared with numerical results in the literature. Both numerical and experimental results confirm the high energy efficiency of the HEV static mixer flow.
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ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4478-6
PROCEEDINGS PAPER
Vortically Enhanced Heat Transfer and Mixing: State of the Art and Recent Results
Akram Ghanem,
Akram Ghanem
Laboratoire de Thermocinétique, LTN, Nantes, France
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Thierry Lemenand,
Thierry Lemenand
Laboratoire de Thermocinétique, LTN, Nantes, France
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Dominique Della Valle,
Dominique Della Valle
ONIRIS, Nantes, France
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Charbel Habchi,
Charbel Habchi
Lebanese International University, Beirut, Lebanon
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Hassan Peerhossaini
Hassan Peerhossaini
Laboratoire de Thermocinétique, LTN, Nantes, France
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Akram Ghanem
Laboratoire de Thermocinétique, LTN, Nantes, France
Thierry Lemenand
Laboratoire de Thermocinétique, LTN, Nantes, France
Dominique Della Valle
ONIRIS, Nantes, France
Charbel Habchi
Lebanese International University, Beirut, Lebanon
Hassan Peerhossaini
Laboratoire de Thermocinétique, LTN, Nantes, France
Paper No:
HT2012-58045, pp. 21-30; 10 pages
Published Online:
July 24, 2013
Citation
Ghanem, A, Lemenand, T, Della Valle, D, Habchi, C, & Peerhossaini, H. "Vortically Enhanced Heat Transfer and Mixing: State of the Art and Recent Results." Proceedings of the ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 21-30. ASME. https://doi.org/10.1115/HT2012-58045
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