Improving heat and mass transfer rates through continuous drop-wise condensation

Abstract Drop-wise condensation (DWC) has been the focus of scientific research in vapor condensation technologies since the 20th century. Improvement of condensation rate in DWC is limited by the maximum droplet a condensation surface could sustain and the frequency of droplet shedding. Furthermore...

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Autores principales:	Ali Alshehri, Jonathan P. Rothstein, H. Pirouz Kavehpour
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9daa04bd6e59486eaa448447651dcc71
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spelling	oai:doaj.org-article:9daa04bd6e59486eaa448447651dcc712021-12-02T19:16:14ZImproving heat and mass transfer rates through continuous drop-wise condensation10.1038/s41598-021-98992-92045-2322https://doaj.org/article/9daa04bd6e59486eaa448447651dcc712021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98992-9https://doaj.org/toc/2045-2322Abstract Drop-wise condensation (DWC) has been the focus of scientific research in vapor condensation technologies since the 20th century. Improvement of condensation rate in DWC is limited by the maximum droplet a condensation surface could sustain and the frequency of droplet shedding. Furthermore, The presence of non-condensable gases (NCG) reduces the condensation rate significantly. Here, we present continuous drop-wise condensation to overcome the need of hydrophobic surfaces while yet maintaining micron-sized droplets. By shifting focus from surface treatment to the force required to sweep off a droplet, we were able to utilize stagnation pressure of jet impingement to tune the shed droplet size. The results show that droplet size being shed can be tuned effectively by tuning the jet parameters. our experimental observations showed that the effect of NCG is greatly alleviated by utilizing this technique. An improvement by multiple folds in mass transfer compactness factor compared to state-of-the-art dehumidification technology was possible.Ali AlshehriJonathan P. RothsteinH. Pirouz KavehpourNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ali Alshehri Jonathan P. Rothstein H. Pirouz Kavehpour Improving heat and mass transfer rates through continuous drop-wise condensation
description	Abstract Drop-wise condensation (DWC) has been the focus of scientific research in vapor condensation technologies since the 20th century. Improvement of condensation rate in DWC is limited by the maximum droplet a condensation surface could sustain and the frequency of droplet shedding. Furthermore, The presence of non-condensable gases (NCG) reduces the condensation rate significantly. Here, we present continuous drop-wise condensation to overcome the need of hydrophobic surfaces while yet maintaining micron-sized droplets. By shifting focus from surface treatment to the force required to sweep off a droplet, we were able to utilize stagnation pressure of jet impingement to tune the shed droplet size. The results show that droplet size being shed can be tuned effectively by tuning the jet parameters. our experimental observations showed that the effect of NCG is greatly alleviated by utilizing this technique. An improvement by multiple folds in mass transfer compactness factor compared to state-of-the-art dehumidification technology was possible.
format	article
author	Ali Alshehri Jonathan P. Rothstein H. Pirouz Kavehpour
author_facet	Ali Alshehri Jonathan P. Rothstein H. Pirouz Kavehpour
author_sort	Ali Alshehri
title	Improving heat and mass transfer rates through continuous drop-wise condensation
title_short	Improving heat and mass transfer rates through continuous drop-wise condensation
title_full	Improving heat and mass transfer rates through continuous drop-wise condensation
title_fullStr	Improving heat and mass transfer rates through continuous drop-wise condensation
title_full_unstemmed	Improving heat and mass transfer rates through continuous drop-wise condensation
title_sort	improving heat and mass transfer rates through continuous drop-wise condensation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9daa04bd6e59486eaa448447651dcc71
work_keys_str_mv	AT alialshehri improvingheatandmasstransferratesthroughcontinuousdropwisecondensation AT jonathanprothstein improvingheatandmasstransferratesthroughcontinuousdropwisecondensation AT hpirouzkavehpour improvingheatandmasstransferratesthroughcontinuousdropwisecondensation
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Improving heat and mass transfer rates through continuous drop-wise condensation

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