Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field

Abstract We run pool boiling experiments with a dielectric fluid (FC-72) on Earth and on board an ESA parabolic flight aircraft able to cancel the effects of gravity, testing both highly wetting microstructured surfaces and plain surfaces and applying an external electric field that creates gravity-...

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Autores principales:	Alekos Ioannis Garivalis, Giacomo Manfredini, Giacomo Saccone, Paolo Di Marco, Artyom Kossolapov, Matteo Bucci
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Biotechnology TP248.13-248.65 Physiology QP1-981
Acceso en línea:	https://doaj.org/article/22630392998c4873a2d55d93a910dc59
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spelling	oai:doaj.org-article:22630392998c4873a2d55d93a910dc592021-12-02T18:37:14ZCritical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field10.1038/s41526-021-00167-32373-8065https://doaj.org/article/22630392998c4873a2d55d93a910dc592021-10-01T00:00:00Zhttps://doi.org/10.1038/s41526-021-00167-3https://doaj.org/toc/2373-8065Abstract We run pool boiling experiments with a dielectric fluid (FC-72) on Earth and on board an ESA parabolic flight aircraft able to cancel the effects of gravity, testing both highly wetting microstructured surfaces and plain surfaces and applying an external electric field that creates gravity-mimicking body forces. Our results reveal that microstructured surfaces, known to enhance the critical heat flux on Earth, are also useful in microgravity. An enhancement of the microgravity critical heat flux on a plain surface can also be obtained using the electric field. However, the best boiling performance is achieved when these techniques are used together. The effects created by microstructured surfaces and electric fields are synergistic. They enhance the critical heat flux in microgravity conditions up to 257 kW/m2, which is even higher than the value measured on Earth on a plain surface (i.e., 168 kW/m2). These results demonstrate the potential of this synergistic approach toward very compact and efficient two-phase heat transfer systems for microgravity applications.Alekos Ioannis GarivalisGiacomo ManfrediniGiacomo SacconePaolo Di MarcoArtyom KossolapovMatteo BucciNature PortfolioarticleBiotechnologyTP248.13-248.65PhysiologyQP1-981ENnpj Microgravity, Vol 7, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biotechnology TP248.13-248.65 Physiology QP1-981
spellingShingle	Biotechnology TP248.13-248.65 Physiology QP1-981 Alekos Ioannis Garivalis Giacomo Manfredini Giacomo Saccone Paolo Di Marco Artyom Kossolapov Matteo Bucci Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
description	Abstract We run pool boiling experiments with a dielectric fluid (FC-72) on Earth and on board an ESA parabolic flight aircraft able to cancel the effects of gravity, testing both highly wetting microstructured surfaces and plain surfaces and applying an external electric field that creates gravity-mimicking body forces. Our results reveal that microstructured surfaces, known to enhance the critical heat flux on Earth, are also useful in microgravity. An enhancement of the microgravity critical heat flux on a plain surface can also be obtained using the electric field. However, the best boiling performance is achieved when these techniques are used together. The effects created by microstructured surfaces and electric fields are synergistic. They enhance the critical heat flux in microgravity conditions up to 257 kW/m2, which is even higher than the value measured on Earth on a plain surface (i.e., 168 kW/m2). These results demonstrate the potential of this synergistic approach toward very compact and efficient two-phase heat transfer systems for microgravity applications.
format	article
author	Alekos Ioannis Garivalis Giacomo Manfredini Giacomo Saccone Paolo Di Marco Artyom Kossolapov Matteo Bucci
author_facet	Alekos Ioannis Garivalis Giacomo Manfredini Giacomo Saccone Paolo Di Marco Artyom Kossolapov Matteo Bucci
author_sort	Alekos Ioannis Garivalis
title	Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
title_short	Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
title_full	Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
title_fullStr	Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
title_full_unstemmed	Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
title_sort	critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/22630392998c4873a2d55d93a910dc59
work_keys_str_mv	AT alekosioannisgarivalis criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield AT giacomomanfredini criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield AT giacomosaccone criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield AT paolodimarco criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield AT artyomkossolapov criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield AT matteobucci criticalheatfluxenhancementinmicrogravityconditionscouplingmicrostructuredsurfacesandelectrostaticfield
_version_	1718377787181498368

Critical heat flux enhancement in microgravity conditions coupling microstructured surfaces and electrostatic field

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