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Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop

This paper is dedicated to the analysis of the improvement of heat transfer and the reduction of the pressure losses induced by the use of an active exchanger of millimeter size in a cooling loop. For pressure conditions imposed at the terminals of such a mini-channel whose upper wall is deformed by...

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Autores principales: Schmidmayer, Kevin, Kumar, Prashant, Lavieille, Pascal, Miscevic, Marc, Topin, Frédéric
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6622530/
https://www.ncbi.nlm.nih.gov/pubmed/31295283
http://dx.doi.org/10.1371/journal.pone.0219441
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author Schmidmayer, Kevin
Kumar, Prashant
Lavieille, Pascal
Miscevic, Marc
Topin, Frédéric
author_facet Schmidmayer, Kevin
Kumar, Prashant
Lavieille, Pascal
Miscevic, Marc
Topin, Frédéric
author_sort Schmidmayer, Kevin
collection PubMed
description This paper is dedicated to the analysis of the improvement of heat transfer and the reduction of the pressure losses induced by the use of an active exchanger of millimeter size in a cooling loop. For pressure conditions imposed at the terminals of such a mini-channel whose upper wall is deformed by a progressive sinusoidal wave and for low Reynolds numbers (Re < 1000), we study the influence of the deformation parameters on the thermo-hydraulic performance of the exchanger (flow, heat transfer). The mechanical power applied to the deformed wall is connected to these parameters as well as to the pressure difference imposed by the external pump. The overall performance increases slightly with the value of the mechanical power up to a critical value for a given wall corrugation. Nevertheless, overall performance is up to 2 orders of magnitude higher than conventional static corrugated channels.
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spelling pubmed-66225302019-07-25 Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop Schmidmayer, Kevin Kumar, Prashant Lavieille, Pascal Miscevic, Marc Topin, Frédéric PLoS One Research Article This paper is dedicated to the analysis of the improvement of heat transfer and the reduction of the pressure losses induced by the use of an active exchanger of millimeter size in a cooling loop. For pressure conditions imposed at the terminals of such a mini-channel whose upper wall is deformed by a progressive sinusoidal wave and for low Reynolds numbers (Re < 1000), we study the influence of the deformation parameters on the thermo-hydraulic performance of the exchanger (flow, heat transfer). The mechanical power applied to the deformed wall is connected to these parameters as well as to the pressure difference imposed by the external pump. The overall performance increases slightly with the value of the mechanical power up to a critical value for a given wall corrugation. Nevertheless, overall performance is up to 2 orders of magnitude higher than conventional static corrugated channels. Public Library of Science 2019-07-11 /pmc/articles/PMC6622530/ /pubmed/31295283 http://dx.doi.org/10.1371/journal.pone.0219441 Text en © 2019 Schmidmayer et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Schmidmayer, Kevin
Kumar, Prashant
Lavieille, Pascal
Miscevic, Marc
Topin, Frédéric
Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title_full Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title_fullStr Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title_full_unstemmed Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title_short Heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
title_sort heat transfer intensification in an actuated heat exchanger submitted to an imposed pressure drop
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6622530/
https://www.ncbi.nlm.nih.gov/pubmed/31295283
http://dx.doi.org/10.1371/journal.pone.0219441
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