Daily sorption thermal battery cycle for building applications

Haye Min; Hyung Won Choi; Jaehui Jeong; Jinhee Jeong; Young Kim; Yong Tae Kang

doi:10.1016/j.energy.2023.129016

Daily sorption thermal battery cycle for building applications

Haye Min, Hyung Won Choi, Jaehui Jeong, Jinhee Jeong, Young Kim, Yong Tae Kang

School of Mechanical Engineering

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

Abstract

The study propose firstly an absorption thermal energy storage (ATES) system designed for repeated operations on a daily base without any additional manipulation. The performance of the sorption thermal battery was analyzed by varying four parameters (mass flow ratio, number of exchanger heat transfer units (NTU), heat source, and cooling water temperature). The lower the cooling water temperature, the better was the performance, particularly for improving the energy storage density (ESD). Additionally, if low-temperature cooling water is used, the coefficient of performance (COP) with a 65 °C heat source is comparable to that with 95 °C. ESD increased with the increasing the heat source temperature, and the maximum COP was obtained when using a 75–85 °C heat source. To solve the crystallization problem, [DMIM][DMP], a type of ionic liquid, was applied as an absorbent. However, the COP of H₂O-[DMIM][DMP] with a heat source temperature of 120 °C was lower that of H₂O–LiBr with 95–100 °C. Therefore, it is advantageous to use H₂O–LiBr to improve the sorption thermal battery performance. ESD and COP of the sorption thermal battery are 451.13 kJ/kg and 0.728, respectively, when using a 95 °C heat source and 32 °C cooling water.

Original language	English
Article number	129016
Journal	Energy
Volume	282
DOIs	https://doi.org/10.1016/j.energy.2023.129016
Publication status	Published - 2023 Nov 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421) and Korea Institute of Energy Technology Evaluation and Planning ( KETEP ) grant funded by the Korea government ( MOTIE ) (Grant number: 20212050100010 ).

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

Charging factor
Coefficient of performance
Daily
Energy storage density
Sorption thermal battery

ASJC Scopus subject areas

Civil and Structural Engineering
Modelling and Simulation
Renewable Energy, Sustainability and the Environment
Building and Construction
Fuel Technology
Energy Engineering and Power Technology
Pollution
Mechanical Engineering
Energy(all)
Management, Monitoring, Policy and Law
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.energy.2023.129016

Cite this

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abstract = "The study propose firstly an absorption thermal energy storage (ATES) system designed for repeated operations on a daily base without any additional manipulation. The performance of the sorption thermal battery was analyzed by varying four parameters (mass flow ratio, number of exchanger heat transfer units (NTU), heat source, and cooling water temperature). The lower the cooling water temperature, the better was the performance, particularly for improving the energy storage density (ESD). Additionally, if low-temperature cooling water is used, the coefficient of performance (COP) with a 65 °C heat source is comparable to that with 95 °C. ESD increased with the increasing the heat source temperature, and the maximum COP was obtained when using a 75–85 °C heat source. To solve the crystallization problem, [DMIM][DMP], a type of ionic liquid, was applied as an absorbent. However, the COP of H2O-[DMIM][DMP] with a heat source temperature of 120 °C was lower that of H2O–LiBr with 95–100 °C. Therefore, it is advantageous to use H2O–LiBr to improve the sorption thermal battery performance. ESD and COP of the sorption thermal battery are 451.13 kJ/kg and 0.728, respectively, when using a 95 °C heat source and 32 °C cooling water.",

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note = "Funding Information: This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421) and Korea Institute of Energy Technology Evaluation and Planning ( KETEP ) grant funded by the Korea government ( MOTIE ) (Grant number: 20212050100010 ). Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

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AU - Kim, Young

AU - Kang, Yong Tae

N1 - Funding Information: This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIP ) (Grant number: 2022R1A2B5B03002421) and Korea Institute of Energy Technology Evaluation and Planning ( KETEP ) grant funded by the Korea government ( MOTIE ) (Grant number: 20212050100010 ). Publisher Copyright: © 2023 Elsevier Ltd

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N2 - The study propose firstly an absorption thermal energy storage (ATES) system designed for repeated operations on a daily base without any additional manipulation. The performance of the sorption thermal battery was analyzed by varying four parameters (mass flow ratio, number of exchanger heat transfer units (NTU), heat source, and cooling water temperature). The lower the cooling water temperature, the better was the performance, particularly for improving the energy storage density (ESD). Additionally, if low-temperature cooling water is used, the coefficient of performance (COP) with a 65 °C heat source is comparable to that with 95 °C. ESD increased with the increasing the heat source temperature, and the maximum COP was obtained when using a 75–85 °C heat source. To solve the crystallization problem, [DMIM][DMP], a type of ionic liquid, was applied as an absorbent. However, the COP of H2O-[DMIM][DMP] with a heat source temperature of 120 °C was lower that of H2O–LiBr with 95–100 °C. Therefore, it is advantageous to use H2O–LiBr to improve the sorption thermal battery performance. ESD and COP of the sorption thermal battery are 451.13 kJ/kg and 0.728, respectively, when using a 95 °C heat source and 32 °C cooling water.

AB - The study propose firstly an absorption thermal energy storage (ATES) system designed for repeated operations on a daily base without any additional manipulation. The performance of the sorption thermal battery was analyzed by varying four parameters (mass flow ratio, number of exchanger heat transfer units (NTU), heat source, and cooling water temperature). The lower the cooling water temperature, the better was the performance, particularly for improving the energy storage density (ESD). Additionally, if low-temperature cooling water is used, the coefficient of performance (COP) with a 65 °C heat source is comparable to that with 95 °C. ESD increased with the increasing the heat source temperature, and the maximum COP was obtained when using a 75–85 °C heat source. To solve the crystallization problem, [DMIM][DMP], a type of ionic liquid, was applied as an absorbent. However, the COP of H2O-[DMIM][DMP] with a heat source temperature of 120 °C was lower that of H2O–LiBr with 95–100 °C. Therefore, it is advantageous to use H2O–LiBr to improve the sorption thermal battery performance. ESD and COP of the sorption thermal battery are 451.13 kJ/kg and 0.728, respectively, when using a 95 °C heat source and 32 °C cooling water.

KW - Charging factor

KW - Coefficient of performance

KW - Daily

KW - Energy storage density

KW - Sorption thermal battery

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ER -

Daily sorption thermal battery cycle for building applications

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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