Moisture Transport in Silica Gel Packed Beds - II. Experimental Study

Ahmad A. Pesaran; Anthony F. Mills

doi:10.1016/0017-9310(87)90035-4

Moisture Transport in Silica Gel Packed Beds - II. Experimental Study

Ahmad A. Pesaran, Anthony F. Mills

University of California at Los Angeles

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

122 Scopus Citations

Abstract

Experiments have been performed to obtain the transient response of a thin adiabatic packed bed of silica gel after a step change in inlet air conditions. Comparisons are made with predictions using a solid-side resistance model and a pseudo-gas-side controlled model and better agreement obtained with the former model. An apparent dynamic hysteresis for adsorption/desorption with microporous silica gel is clearly in evidence, which could be due to a solid-side effective diffusion coefficient which decreases with increasing moisture content, or to a lesser extent to a hysteresis in the adsorption isotherm itself.

Original language	American English
Pages (from-to)	1051-1060
Number of pages	10
Journal	International Journal of Heat and Mass Transfer
Volume	30
Issue number	6
DOIs	https://doi.org/10.1016/0017-9310(87)90035-4 https://doi.org/10.1016/0017-9310(87)90035-4
State	Published - 1987
Externally published	Yes

Bibliographical note

Work performed by Solar Energy Research Institute, Golden, Colorado, and School of Engineering and Applied Science, University of California, Los Angeles, California

NREL Publication Number

ACNR/JA-252-9519

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title = "Moisture Transport in Silica Gel Packed Beds - II. Experimental Study",

abstract = "Experiments have been performed to obtain the transient response of a thin adiabatic packed bed of silica gel after a step change in inlet air conditions. Comparisons are made with predictions using a solid-side resistance model and a pseudo-gas-side controlled model and better agreement obtained with the former model. An apparent dynamic hysteresis for adsorption/desorption with microporous silica gel is clearly in evidence, which could be due to a solid-side effective diffusion coefficient which decreases with increasing moisture content, or to a lesser extent to a hysteresis in the adsorption isotherm itself.",

author = "Pesaran, {Ahmad A.} and Mills, {Anthony F.}",

note = "Work performed by Solar Energy Research Institute, Golden, Colorado, and School of Engineering and Applied Science, University of California, Los Angeles, California",

year = "1987",

doi = "10.1016/0017-9310(87)90035-4",

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AU - Pesaran, Ahmad A.

AU - Mills, Anthony F.

N1 - Work performed by Solar Energy Research Institute, Golden, Colorado, and School of Engineering and Applied Science, University of California, Los Angeles, California

PY - 1987

Y1 - 1987

N2 - Experiments have been performed to obtain the transient response of a thin adiabatic packed bed of silica gel after a step change in inlet air conditions. Comparisons are made with predictions using a solid-side resistance model and a pseudo-gas-side controlled model and better agreement obtained with the former model. An apparent dynamic hysteresis for adsorption/desorption with microporous silica gel is clearly in evidence, which could be due to a solid-side effective diffusion coefficient which decreases with increasing moisture content, or to a lesser extent to a hysteresis in the adsorption isotherm itself.

AB - Experiments have been performed to obtain the transient response of a thin adiabatic packed bed of silica gel after a step change in inlet air conditions. Comparisons are made with predictions using a solid-side resistance model and a pseudo-gas-side controlled model and better agreement obtained with the former model. An apparent dynamic hysteresis for adsorption/desorption with microporous silica gel is clearly in evidence, which could be due to a solid-side effective diffusion coefficient which decreases with increasing moisture content, or to a lesser extent to a hysteresis in the adsorption isotherm itself.

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U2 - 10.1016/0017-9310(87)90035-4

DO - 10.1016/0017-9310(87)90035-4

M3 - Article

AN - SCOPUS:0023367456

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JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 6

ER -

Moisture Transport in Silica Gel Packed Beds - II. Experimental Study

Abstract

Bibliographical note

NREL Publication Number

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