Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films

This study describes a developing laminar falling film over a vertical plate while heat and mass transfer occurs. The model accounts for a developing film thickness and uni‐directional diffusion. The fluid properties are assumed to be constant, and latent heat, which is relatively large in compariso...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Mittermaier, Martin [verfasserIn] Ziegler, Felix

Format:	Artikel
Sprache:	Englisch

Erschienen:	2016

Rechteinformationen:	Nutzungsrecht: Copyright © 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

Schlagwörter:	Absorption Boundary layer approximation Entrance region Film flow Uni‐directional diffusion

Übergeordnetes Werk:	Enthalten in: Chemie - Ingenieur - Technik - Weinheim : Wiley-VCH Verl., 1949, 88(2016), 1‐2, Seite 139-146
Übergeordnetes Werk:	volume:88 ; year:2016 ; number:1‐2 ; pages:139-146

Links:	Volltext Link aufrufen

DOI / URN:	10.1002/cite.201500093

Katalog-ID:	OLC1971876011

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spelling	10.1002/cite.201500093 doi PQ20160307 (DE-627)OLC1971876011 (DE-599)GBVOLC1971876011 (PRQ)s1105-14f4bfe50b5f7da3ec69abdfbeb94b889a1d8b0a8d7d9ed055a57b520fadd0da3 (KEY)0068642520160000088000100139impactofadevelopingvelocityprofileonheatandmasstra DE-627 ger DE-627 rakwb eng 660 DNB 540 AVZ Mittermaier, Martin verfasserin aut Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier This study describes a developing laminar falling film over a vertical plate while heat and mass transfer occurs. The model accounts for a developing film thickness and uni‐directional diffusion. The fluid properties are assumed to be constant, and latent heat, which is relatively large in comparison to the sensible heat, is set free at the liquid‐vapor interface. Temperature and concentration profiles in the film, the development of the interface velocity, as well as the absorbed mass fluxes are presented and two different boundary conditions have been applied to the inlet of the film. Starting with a homogenous velocity higher than the mean one of a fully developed profile leads to an earlier onset of absorption and results in a 10 % higher accumulated absorbed mass flux. When the mass diffusivity is reduced by a factor of 10 – which is relevant for absorbents such as ionic liquids – the effect is more pronounced. Nutzungsrecht: Copyright © 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim Absorption Boundary layer approximation Entrance region Film flow Uni‐directional diffusion Ziegler, Felix oth Enthalten in Chemie - Ingenieur - Technik Weinheim : Wiley-VCH Verl., 1949 88(2016), 1‐2, Seite 139-146 (DE-627)12953384X (DE-600)215592-8 (DE-576)014961490 0009-286X nnns volume:88 year:2016 number:1‐2 pages:139-146 http://dx.doi.org/10.1002/cite.201500093 Volltext http://onlinelibrary.wiley.com/doi/10.1002/cite.201500093/abstract GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_20 GBV_ILN_22 GBV_ILN_30 GBV_ILN_34 GBV_ILN_63 GBV_ILN_70 GBV_ILN_120 GBV_ILN_140 GBV_ILN_164 GBV_ILN_170 GBV_ILN_186 GBV_ILN_267 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2129 GBV_ILN_2245 GBV_ILN_2542 GBV_ILN_4306 GBV_ILN_4310 AR 88 2016 1‐2 139-146
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language	English
source	Enthalten in Chemie - Ingenieur - Technik 88(2016), 1‐2, Seite 139-146 volume:88 year:2016 number:1‐2 pages:139-146
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author	Mittermaier, Martin
spellingShingle	Mittermaier, Martin ddc 660 ddc 540 misc Absorption misc Boundary layer approximation misc Entrance region misc Film flow misc Uni‐directional diffusion Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films
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topic_title	660 DNB 540 AVZ Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films Absorption Boundary layer approximation Entrance region Film flow Uni‐directional diffusion
topic	ddc 660 ddc 540 misc Absorption misc Boundary layer approximation misc Entrance region misc Film flow misc Uni‐directional diffusion
topic_unstemmed	ddc 660 ddc 540 misc Absorption misc Boundary layer approximation misc Entrance region misc Film flow misc Uni‐directional diffusion
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title	Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films
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title_full	Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films
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title_sort	impact of a developing velocity profile on heat and mass transfer in absorbing laminar falling films
title_auth	Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films
abstract	This study describes a developing laminar falling film over a vertical plate while heat and mass transfer occurs. The model accounts for a developing film thickness and uni‐directional diffusion. The fluid properties are assumed to be constant, and latent heat, which is relatively large in comparison to the sensible heat, is set free at the liquid‐vapor interface. Temperature and concentration profiles in the film, the development of the interface velocity, as well as the absorbed mass fluxes are presented and two different boundary conditions have been applied to the inlet of the film. Starting with a homogenous velocity higher than the mean one of a fully developed profile leads to an earlier onset of absorption and results in a 10 % higher accumulated absorbed mass flux. When the mass diffusivity is reduced by a factor of 10 – which is relevant for absorbents such as ionic liquids – the effect is more pronounced.
abstractGer	This study describes a developing laminar falling film over a vertical plate while heat and mass transfer occurs. The model accounts for a developing film thickness and uni‐directional diffusion. The fluid properties are assumed to be constant, and latent heat, which is relatively large in comparison to the sensible heat, is set free at the liquid‐vapor interface. Temperature and concentration profiles in the film, the development of the interface velocity, as well as the absorbed mass fluxes are presented and two different boundary conditions have been applied to the inlet of the film. Starting with a homogenous velocity higher than the mean one of a fully developed profile leads to an earlier onset of absorption and results in a 10 % higher accumulated absorbed mass flux. When the mass diffusivity is reduced by a factor of 10 – which is relevant for absorbents such as ionic liquids – the effect is more pronounced.
abstract_unstemmed	This study describes a developing laminar falling film over a vertical plate while heat and mass transfer occurs. The model accounts for a developing film thickness and uni‐directional diffusion. The fluid properties are assumed to be constant, and latent heat, which is relatively large in comparison to the sensible heat, is set free at the liquid‐vapor interface. Temperature and concentration profiles in the film, the development of the interface velocity, as well as the absorbed mass fluxes are presented and two different boundary conditions have been applied to the inlet of the film. Starting with a homogenous velocity higher than the mean one of a fully developed profile leads to an earlier onset of absorption and results in a 10 % higher accumulated absorbed mass flux. When the mass diffusivity is reduced by a factor of 10 – which is relevant for absorbents such as ionic liquids – the effect is more pronounced.
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container_issue	1‐2
title_short	Impact of a Developing Velocity Profile on Heat and Mass Transfer in Absorbing Laminar Falling Films
url	http://dx.doi.org/10.1002/cite.201500093 http://onlinelibrary.wiley.com/doi/10.1002/cite.201500093/abstract
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up_date	2024-07-03T21:11:27.992Z
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