Evaporation due to infrared heating and natural convection

Adrian S. Sabau; Cristian I. Contescu; Gerald D. Jellison; Jane Y. Howe; Beth L. Armstrong; Claus Daniel; Sue Babinec

doi:10.1007/s00231-020-02875-0

Evaporation due to infrared heating and natural convection

Adrian S. Sabau, Cristian I. Contescu, Gerald D. Jellison, Jane Y. Howe, Beth L. Armstrong, Claus Daniel, Sue Babinec

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The results obtained from a drying experiment using infrared heating are compared to those obtained from an analytical model based on correlations for the mass transfer coefficients, which are commonly used to obtain evaporation rates for drying applications. It was shown that the mass transfer coefficients calculated by natural convection correlations are approximately ten times lower than those measured under infrared (IR) exposure. In an attempt to explain this discrepancy, which has been also observed in other studies and explained on the basis of thermal radiation effects, optical properties of the solvent are presented and the implications of the IR and near infrared (NIR) spectrum on the thermal radiation effects and ensuing evaporation rates are discussed. The results show that the correlation for mass transfer coefficient has to take into account the IR radiation temperature and the surface emissivity. This study provides important evaporation data on mass flux and mass transfer coefficients, which cannot be predicted using traditional correlations, for the design of IR assisted drying systems.

Original language	English
Pages (from-to)	2585-2593
Number of pages	9
Journal	Heat and Mass Transfer/Waerme- und Stoffuebertragung
Volume	56
Issue number	8
DOIs	https://doi.org/10.1007/s00231-020-02875-0
State	Published - Aug 1 2020

Funding

Notice: This manuscript has been authored in part by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725, and A123 Systems, Inc., was sponsored by the Industrial Technologies Program for the Office of Energy Efficiency and Renewable Energy. We thank Patrick Hagans of A123 Systems, Inc. for supplying the NMP solvent.

Funders	Funder number
A123 Systems, Inc.
U.S. Department of Energy	DE-AC05-00OR22725
Office of Energy Efficiency and Renewable Energy
Oak Ridge National Laboratory
UT-Battelle

Keywords

Drying
Evaporation rate
Infrared thermal radiation
Mass transfer coefficient
Spectral

Access to Document

10.1007/s00231-020-02875-0

Cite this

@article{ab8b3649b4a24b4c95f05f226f6dd38f,

title = "Evaporation due to infrared heating and natural convection",

abstract = "The results obtained from a drying experiment using infrared heating are compared to those obtained from an analytical model based on correlations for the mass transfer coefficients, which are commonly used to obtain evaporation rates for drying applications. It was shown that the mass transfer coefficients calculated by natural convection correlations are approximately ten times lower than those measured under infrared (IR) exposure. In an attempt to explain this discrepancy, which has been also observed in other studies and explained on the basis of thermal radiation effects, optical properties of the solvent are presented and the implications of the IR and near infrared (NIR) spectrum on the thermal radiation effects and ensuing evaporation rates are discussed. The results show that the correlation for mass transfer coefficient has to take into account the IR radiation temperature and the surface emissivity. This study provides important evaporation data on mass flux and mass transfer coefficients, which cannot be predicted using traditional correlations, for the design of IR assisted drying systems.",

keywords = "Drying, Evaporation rate, Infrared thermal radiation, Mass transfer coefficient, Spectral",

author = "Sabau, {Adrian S.} and Contescu, {Cristian I.} and Jellison, {Gerald D.} and Howe, {Jane Y.} and Armstrong, {Beth L.} and Claus Daniel and Sue Babinec",

note = "Publisher Copyright: {\textcopyright} 2020, Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2020",

month = aug,

day = "1",

doi = "10.1007/s00231-020-02875-0",

language = "English",

volume = "56",

pages = "2585--2593",

journal = "Heat and Mass Transfer/Waerme- und Stoffuebertragung",

issn = "0947-7411",

publisher = "Springer",

number = "8",

}

TY - JOUR

T1 - Evaporation due to infrared heating and natural convection

AU - Sabau, Adrian S.

AU - Contescu, Cristian I.

AU - Jellison, Gerald D.

AU - Howe, Jane Y.

AU - Armstrong, Beth L.

AU - Daniel, Claus

AU - Babinec, Sue

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The results obtained from a drying experiment using infrared heating are compared to those obtained from an analytical model based on correlations for the mass transfer coefficients, which are commonly used to obtain evaporation rates for drying applications. It was shown that the mass transfer coefficients calculated by natural convection correlations are approximately ten times lower than those measured under infrared (IR) exposure. In an attempt to explain this discrepancy, which has been also observed in other studies and explained on the basis of thermal radiation effects, optical properties of the solvent are presented and the implications of the IR and near infrared (NIR) spectrum on the thermal radiation effects and ensuing evaporation rates are discussed. The results show that the correlation for mass transfer coefficient has to take into account the IR radiation temperature and the surface emissivity. This study provides important evaporation data on mass flux and mass transfer coefficients, which cannot be predicted using traditional correlations, for the design of IR assisted drying systems.

AB - The results obtained from a drying experiment using infrared heating are compared to those obtained from an analytical model based on correlations for the mass transfer coefficients, which are commonly used to obtain evaporation rates for drying applications. It was shown that the mass transfer coefficients calculated by natural convection correlations are approximately ten times lower than those measured under infrared (IR) exposure. In an attempt to explain this discrepancy, which has been also observed in other studies and explained on the basis of thermal radiation effects, optical properties of the solvent are presented and the implications of the IR and near infrared (NIR) spectrum on the thermal radiation effects and ensuing evaporation rates are discussed. The results show that the correlation for mass transfer coefficient has to take into account the IR radiation temperature and the surface emissivity. This study provides important evaporation data on mass flux and mass transfer coefficients, which cannot be predicted using traditional correlations, for the design of IR assisted drying systems.

KW - Drying

KW - Evaporation rate

KW - Infrared thermal radiation

KW - Mass transfer coefficient

KW - Spectral

UR - http://www.scopus.com/inward/record.url?scp=85085373243&partnerID=8YFLogxK

U2 - 10.1007/s00231-020-02875-0

DO - 10.1007/s00231-020-02875-0

M3 - Article

AN - SCOPUS:85085373243

SN - 0947-7411

VL - 56

SP - 2585

EP - 2593

JO - Heat and Mass Transfer/Waerme- und Stoffuebertragung

JF - Heat and Mass Transfer/Waerme- und Stoffuebertragung

IS - 8

ER -

Evaporation due to infrared heating and natural convection

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this