Investigation of open-type 1 kW-scale thermochemical heat storage system with zeolite 13X for power-to-heat applications

Sungkook Hong; Si won Yoon; Jong kyu Kim

doi:10.1007/s12206-022-0842-y

Investigation of open-type 1 kW-scale thermochemical heat storage system with zeolite 13X for power-to-heat applications

Sungkook Hong^*
, Si won Yoon
, Jong kyu Kim

^*Corresponding author for this work

Department of Smart Farm

Korea Institute of Energy Research

Research output: Contribution to journal › Journal article › peer-review

8 Scopus citations

Abstract

This study investigated thermochemical heat storage with zeolite 13X to provide an insight into the design and operation of a heat storage system for power-to-heat (P2H) applications. The heat storage system consists of a storage chamber with 21.2 liters of its capacity stacked by zeolite 13X. Experiments were conducted based on the variation of operating parameters, such as charging temperature, absolute humidity, and flow rate. The results show that the amount of available heat linearly increases with charging temperature; that is, its value at 220 °C is twice that at 100 °C. The maximum energy storage density is calculated as 0.56 GJ/m³. The average heat power varies in the range of 0.4–0.7 kW depending on the amount of supplied water. In addition, a linear correlation between the reacted water and discharged heat is provided. It was confirmed that the thermal storage efficiency was 60–70 %.

Original language	English
Journal	Journal of Mechanical Science and Technology
DOIs	https://doi.org/10.1007/s12206-022-0842-y
State	Accepted/In press - 2022

Keywords

1kW-scale system
Power-to-heat (P2H)
Thermochemical heat storage
Zeolite 13X

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10.1007/s12206-022-0842-y

Cite this

@article{dcba4662759f402f92e80bb0ba82028d,

title = "Investigation of open-type 1 kW-scale thermochemical heat storage system with zeolite 13X for power-to-heat applications",

abstract = "This study investigated thermochemical heat storage with zeolite 13X to provide an insight into the design and operation of a heat storage system for power-to-heat (P2H) applications. The heat storage system consists of a storage chamber with 21.2 liters of its capacity stacked by zeolite 13X. Experiments were conducted based on the variation of operating parameters, such as charging temperature, absolute humidity, and flow rate. The results show that the amount of available heat linearly increases with charging temperature; that is, its value at 220 °C is twice that at 100 °C. The maximum energy storage density is calculated as 0.56 GJ/m3. The average heat power varies in the range of 0.4–0.7 kW depending on the amount of supplied water. In addition, a linear correlation between the reacted water and discharged heat is provided. It was confirmed that the thermal storage efficiency was 60–70 \%.",

keywords = "1kW-scale system, Power-to-heat (P2H), Thermochemical heat storage, Zeolite 13X",

author = "Sungkook Hong and Yoon, \{Si won\} and Kim, \{Jong kyu\}",

note = "Publisher Copyright: {\textcopyright} 2022, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2022",

doi = "10.1007/s12206-022-0842-y",

language = "English",

journal = "Journal of Mechanical Science and Technology",

issn = "1738-494X",

}

TY - JOUR

T1 - Investigation of open-type 1 kW-scale thermochemical heat storage system with zeolite 13X for power-to-heat applications

AU - Hong, Sungkook

AU - Yoon, Si won

AU - Kim, Jong kyu

PY - 2022

Y1 - 2022

N2 - This study investigated thermochemical heat storage with zeolite 13X to provide an insight into the design and operation of a heat storage system for power-to-heat (P2H) applications. The heat storage system consists of a storage chamber with 21.2 liters of its capacity stacked by zeolite 13X. Experiments were conducted based on the variation of operating parameters, such as charging temperature, absolute humidity, and flow rate. The results show that the amount of available heat linearly increases with charging temperature; that is, its value at 220 °C is twice that at 100 °C. The maximum energy storage density is calculated as 0.56 GJ/m3. The average heat power varies in the range of 0.4–0.7 kW depending on the amount of supplied water. In addition, a linear correlation between the reacted water and discharged heat is provided. It was confirmed that the thermal storage efficiency was 60–70 %.

AB - This study investigated thermochemical heat storage with zeolite 13X to provide an insight into the design and operation of a heat storage system for power-to-heat (P2H) applications. The heat storage system consists of a storage chamber with 21.2 liters of its capacity stacked by zeolite 13X. Experiments were conducted based on the variation of operating parameters, such as charging temperature, absolute humidity, and flow rate. The results show that the amount of available heat linearly increases with charging temperature; that is, its value at 220 °C is twice that at 100 °C. The maximum energy storage density is calculated as 0.56 GJ/m3. The average heat power varies in the range of 0.4–0.7 kW depending on the amount of supplied water. In addition, a linear correlation between the reacted water and discharged heat is provided. It was confirmed that the thermal storage efficiency was 60–70 %.

KW - 1kW-scale system

KW - Power-to-heat (P2H)

KW - Thermochemical heat storage

KW - Zeolite 13X

UR - https://www.scopus.com/pages/publications/85137470620

U2 - 10.1007/s12206-022-0842-y

DO - 10.1007/s12206-022-0842-y

M3 - Journal article

AN - SCOPUS:85137470620

SN - 1738-494X

JO - Journal of Mechanical Science and Technology

JF - Journal of Mechanical Science and Technology

ER -

Investigation of open-type 1 kW-scale thermochemical heat storage system with zeolite 13X for power-to-heat applications

Abstract

Keywords

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