Kinetic study of LI2SO4·H2O dehydration using microscopy and modeling

Shuiquan Lan; Herbert Zondag; Camilo Rindt

doi:10.1615/IHTC15.nmm.009000

Kinetic study of LI₂SO₄·H₂O dehydration using microscopy and modeling

Shuiquan Lan
, Herbert Zondag
, Camilo Rindt

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Downloads (Pure)

Abstract

A phenomena-based method is presented to study the kinetics of the dehydration reaction of Li₂SO₄·H₂O single crystals. The reaction proceeds by nucleation and growth processes, which are recorded photographically using a camera system. Based on a series of pictures of surface observations under isothermal conditions, an areic nucleation rate and growth rate were estimated. Since only surface information was obtained so far, an experimental study about the speed of growth into the crystal was carried out to quantify the growth rate in-depth. Together with the surface information, a nucleation and growth model was developed and employed to predict the reaction kinetics. The fractional conversion of the dehydration reaction was calculated and compared with experimental results from TGA (thermogravimetric analysis) measurements. A satisfactory prediction was achieved as a function of sample medium and experimental environment.

Original language	English
Title of host publication	Proceedings of the 15th International Heat Transfer Conference (IHTC-15), August 10-15, 2014, Kyoto, Japan
Place of Publication	Danbury
Publisher	Begell House Inc.
Pages	5589-5598
DOIs	https://doi.org/10.1615/IHTC15.nmm.009000
Publication status	Published - 2014
Event	15th International Heat Transfer Conference (IHTC 2014) - Kyoto, Japan Duration: 10 Aug 2014 → 15 Aug 2014 Conference number: 15

Conference

Conference	15th International Heat Transfer Conference (IHTC 2014)
Abbreviated title	IHTC 2014
Country/Territory	Japan
City	Kyoto
Period	10/08/14 → 15/08/14
Other	15th International Heat Transfer Conference (IHTC-15)

Keywords

Kinetics
Microscopic measurement
Modeling
Nucleation and growth
Thermal storage
Thermochemistry

Access to Document

10.1615/IHTC15.nmm.009000

Cite this

@inproceedings{fa79864857db48b1aa3052a797d42f71,

title = "Kinetic study of LI2SO4·H2O dehydration using microscopy and modeling",

abstract = "A phenomena-based method is presented to study the kinetics of the dehydration reaction of Li2SO4·H2O single crystals. The reaction proceeds by nucleation and growth processes, which are recorded photographically using a camera system. Based on a series of pictures of surface observations under isothermal conditions, an areic nucleation rate and growth rate were estimated. Since only surface information was obtained so far, an experimental study about the speed of growth into the crystal was carried out to quantify the growth rate in-depth. Together with the surface information, a nucleation and growth model was developed and employed to predict the reaction kinetics. The fractional conversion of the dehydration reaction was calculated and compared with experimental results from TGA (thermogravimetric analysis) measurements. A satisfactory prediction was achieved as a function of sample medium and experimental environment.",

keywords = "Kinetics, Microscopic measurement, Modeling, Nucleation and growth, Thermal storage, Thermochemistry",

author = "Shuiquan Lan and Herbert Zondag and Camilo Rindt",

year = "2014",

doi = "10.1615/IHTC15.nmm.009000",

language = "English",

pages = "5589--5598",

booktitle = "Proceedings of the 15th International Heat Transfer Conference (IHTC-15), August 10-15, 2014, Kyoto, Japan",

publisher = "Begell House Inc.",

address = "United States",

note = "15th International Heat Transfer Conference (IHTC 2014), IHTC 2014 ; Conference date: 10-08-2014 Through 15-08-2014",

}

Lan, S, Zondag, H & Rindt, C 2014, Kinetic study of LI₂SO₄·H₂O dehydration using microscopy and modeling. in Proceedings of the 15th International Heat Transfer Conference (IHTC-15), August 10-15, 2014, Kyoto, Japan., IHTC15-9000, Begell House Inc., Danbury, pp. 5589-5598, 15th International Heat Transfer Conference (IHTC 2014), Kyoto, Japan, 10/08/14. https://doi.org/10.1615/IHTC15.nmm.009000

Kinetic study of LI₂SO₄·H₂O dehydration using microscopy and modeling. / Lan, Shuiquan; Zondag, Herbert ; Rindt, Camilo.
Proceedings of the 15th International Heat Transfer Conference (IHTC-15), August 10-15, 2014, Kyoto, Japan. Danbury: Begell House Inc., 2014. p. 5589-5598 IHTC15-9000.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Kinetic study of LI2SO4·H2O dehydration using microscopy and modeling

AU - Lan, Shuiquan

AU - Zondag, Herbert

AU - Rindt, Camilo

N1 - Conference code: 15

PY - 2014

Y1 - 2014

N2 - A phenomena-based method is presented to study the kinetics of the dehydration reaction of Li2SO4·H2O single crystals. The reaction proceeds by nucleation and growth processes, which are recorded photographically using a camera system. Based on a series of pictures of surface observations under isothermal conditions, an areic nucleation rate and growth rate were estimated. Since only surface information was obtained so far, an experimental study about the speed of growth into the crystal was carried out to quantify the growth rate in-depth. Together with the surface information, a nucleation and growth model was developed and employed to predict the reaction kinetics. The fractional conversion of the dehydration reaction was calculated and compared with experimental results from TGA (thermogravimetric analysis) measurements. A satisfactory prediction was achieved as a function of sample medium and experimental environment.

AB - A phenomena-based method is presented to study the kinetics of the dehydration reaction of Li2SO4·H2O single crystals. The reaction proceeds by nucleation and growth processes, which are recorded photographically using a camera system. Based on a series of pictures of surface observations under isothermal conditions, an areic nucleation rate and growth rate were estimated. Since only surface information was obtained so far, an experimental study about the speed of growth into the crystal was carried out to quantify the growth rate in-depth. Together with the surface information, a nucleation and growth model was developed and employed to predict the reaction kinetics. The fractional conversion of the dehydration reaction was calculated and compared with experimental results from TGA (thermogravimetric analysis) measurements. A satisfactory prediction was achieved as a function of sample medium and experimental environment.

KW - Kinetics

KW - Microscopic measurement

KW - Modeling

KW - Nucleation and growth

KW - Thermal storage

KW - Thermochemistry

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U2 - 10.1615/IHTC15.nmm.009000

DO - 10.1615/IHTC15.nmm.009000

M3 - Conference contribution

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EP - 5598

BT - Proceedings of the 15th International Heat Transfer Conference (IHTC-15), August 10-15, 2014, Kyoto, Japan

PB - Begell House Inc.

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T2 - 15th International Heat Transfer Conference (IHTC 2014)

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