Infrared thermography of sorptive heating of thin porous media: experiments and continuum simulations

Vignesh Murali; Jos Zeegers; Anton Darhuber

doi:10.1016/j.ijheatmasstransfer.2019.118875

Infrared thermography of sorptive heating of thin porous media: experiments and continuum simulations

Vignesh Murali
, Jos Zeegers
, Anton Darhuber (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

13 Citaten (Scopus)

205 Downloads (Pure)

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We have studied the imbibition of water from a stationary nozzle into thin, moving porous media that are suspended in air, as well as the accompanying evaporation and condensation processes. Due to sorptive heating and the latent heat associated with the phase change processes, the temperature of the porous medium becomes non-uniform. We have measured the temperature distributions using infrared thermography as a function of substrate speed. Moreover, we developed a numerical model coupling Darcy flow and heat transfer in the thin porous medium with gas flow, heat and water vapor transport in the surrounding gas phase. The numerical simulations reproduce the measurements very well and point at an intricate buoyancy-induced gas-phase convection pattern.

Originele taal-2	Engels
Artikelnummer	118875
Aantal pagina's	10
Tijdschrift	International Journal of Heat and Mass Transfer
Volume	147
DOI's	https://doi.org/10.1016/j.ijheatmasstransfer.2019.118875
Status	Gepubliceerd - feb. 2020

Financiering

This work is part of the research programme ‘ The role of surfactants in spreading, imbibition and sorption of water-based printing inks ’ with project number 14666, which is (partly) financed by the Netherlands Organisation for Scientific Research (NWO). The authors thank Nicolae Tomozeiu, Herman Wijshoff and Louis Saes of Océ - A Canon Company for the fruitful cooperation.

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10.1016/j.ijheatmasstransfer.2019.118875

publishers versionDefinitieve gepubliceerde versie, 1,57 MBLicentie: CC BY-NC-ND

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title = "Infrared thermography of sorptive heating of thin porous media: experiments and continuum simulations",

abstract = "We have studied the imbibition of water from a stationary nozzle into thin, moving porous media that are suspended in air, as well as the accompanying evaporation and condensation processes. Due to sorptive heating and the latent heat associated with the phase change processes, the temperature of the porous medium becomes non-uniform. We have measured the temperature distributions using infrared thermography as a function of substrate speed. Moreover, we developed a numerical model coupling Darcy flow and heat transfer in the thin porous medium with gas flow, heat and water vapor transport in the surrounding gas phase. The numerical simulations reproduce the measurements very well and point at an intricate buoyancy-induced gas-phase convection pattern.",

keywords = "Heat of wetting, Infrared thermography, Moisture distributions, Porous media, Sorption",

author = "Vignesh Murali and Jos Zeegers and Anton Darhuber",

year = "2020",

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doi = "10.1016/j.ijheatmasstransfer.2019.118875",

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T2 - experiments and continuum simulations

AU - Murali, Vignesh

AU - Zeegers, Jos

AU - Darhuber, Anton

PY - 2020/2

Y1 - 2020/2

N2 - We have studied the imbibition of water from a stationary nozzle into thin, moving porous media that are suspended in air, as well as the accompanying evaporation and condensation processes. Due to sorptive heating and the latent heat associated with the phase change processes, the temperature of the porous medium becomes non-uniform. We have measured the temperature distributions using infrared thermography as a function of substrate speed. Moreover, we developed a numerical model coupling Darcy flow and heat transfer in the thin porous medium with gas flow, heat and water vapor transport in the surrounding gas phase. The numerical simulations reproduce the measurements very well and point at an intricate buoyancy-induced gas-phase convection pattern.

AB - We have studied the imbibition of water from a stationary nozzle into thin, moving porous media that are suspended in air, as well as the accompanying evaporation and condensation processes. Due to sorptive heating and the latent heat associated with the phase change processes, the temperature of the porous medium becomes non-uniform. We have measured the temperature distributions using infrared thermography as a function of substrate speed. Moreover, we developed a numerical model coupling Darcy flow and heat transfer in the thin porous medium with gas flow, heat and water vapor transport in the surrounding gas phase. The numerical simulations reproduce the measurements very well and point at an intricate buoyancy-induced gas-phase convection pattern.

KW - Heat of wetting

KW - Infrared thermography

KW - Moisture distributions

KW - Porous media

KW - Sorption

UR - https://www.scopus.com/pages/publications/85074129362

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DO - 10.1016/j.ijheatmasstransfer.2019.118875

M3 - Article

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SN - 0017-9310

VL - 147

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

M1 - 118875

ER -

Infrared thermography of sorptive heating of thin porous media: experiments and continuum simulations

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