Performance analysis of an integrated energy storage and energy upgrade thermochemical solid-gas sorption system for seasonal storage of solar thermal energy

Tingxian Li; Ruzhu Wang; Jeremiah K. Kiplagat; Yong Tae Kang

doi:10.1016/j.energy.2012.11.043

Performance analysis of an integrated energy storage and energy upgrade thermochemical solid-gas sorption system for seasonal storage of solar thermal energy

Tingxian Li, Ruzhu Wang, Jeremiah K. Kiplagat, Yong Tae Kang

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

145 Citations (Scopus)

Abstract

An innovative dual-mode thermochemical sorption energy storage method is proposed for seasonal storage of solar thermal energy with little heat losses. During the charging phase in summer, solar thermal energy is stored in form of chemical bonds resulting from thermochemical decomposition process, which enables the stored energy to be kept several months at ambient temperature. During the discharging phase in winter, the stored thermal energy is released in the form of chemical reaction heat resulting from thermochemical synthesis process. Thermodynamic analysis showed that the advanced dual-mode thermochemical sorption energy storage is an effective method for the long-term seasonal storage of solar energy. A coefficient of performance (COP_h) of 0.6 and energy density higher than 1000 kJ/kg of salt can be attained from the proposed system. During the discharging phase at low ambient temperatures, the stored thermal energy can be upgraded by use of a solid-gas thermochemical sorption heat transformer cycle. The proposed thermochemical sorption energy storage has distinct advantages over the conventional sensible heat and latent heat storage, such as higher energy storage density, little heat losses, integrated energy storage and energy upgrade, and thus it can contribute to improve the seasonal utilization of solar thermal energy.

Original language	English
Pages (from-to)	454-467
Number of pages	14
Journal	Energy
Volume	50
Issue number	1
DOIs	https://doi.org/10.1016/j.energy.2012.11.043
Publication status	Published - 2013 Feb 1
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Natural Science Foundation of China under the contract No. 51276211 and the International joint project of the Natural Science Foundation of China under the contract No. 51020105010 . The authors would like to thank the financial support from the National Research Foundation (NRF) of Korea under the grant No. 20100029120 .

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

Energy upgrade
Internal heat recovery
Seasonal energy storage
Solar energy
Thermochemical process

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Pollution
Mechanical Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1016/j.energy.2012.11.043

Cite this

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title = "Performance analysis of an integrated energy storage and energy upgrade thermochemical solid-gas sorption system for seasonal storage of solar thermal energy",

abstract = "An innovative dual-mode thermochemical sorption energy storage method is proposed for seasonal storage of solar thermal energy with little heat losses. During the charging phase in summer, solar thermal energy is stored in form of chemical bonds resulting from thermochemical decomposition process, which enables the stored energy to be kept several months at ambient temperature. During the discharging phase in winter, the stored thermal energy is released in the form of chemical reaction heat resulting from thermochemical synthesis process. Thermodynamic analysis showed that the advanced dual-mode thermochemical sorption energy storage is an effective method for the long-term seasonal storage of solar energy. A coefficient of performance (COPh) of 0.6 and energy density higher than 1000 kJ/kg of salt can be attained from the proposed system. During the discharging phase at low ambient temperatures, the stored thermal energy can be upgraded by use of a solid-gas thermochemical sorption heat transformer cycle. The proposed thermochemical sorption energy storage has distinct advantages over the conventional sensible heat and latent heat storage, such as higher energy storage density, little heat losses, integrated energy storage and energy upgrade, and thus it can contribute to improve the seasonal utilization of solar thermal energy.",

keywords = "Energy upgrade, Internal heat recovery, Seasonal energy storage, Solar energy, Thermochemical process",

author = "Tingxian Li and Ruzhu Wang and Kiplagat, {Jeremiah K.} and Kang, {Yong Tae}",

note = "Funding Information: This work was supported by the Natural Science Foundation of China under the contract No. 51276211 and the International joint project of the Natural Science Foundation of China under the contract No. 51020105010 . The authors would like to thank the financial support from the National Research Foundation (NRF) of Korea under the grant No. 20100029120 . Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2013",

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doi = "10.1016/j.energy.2012.11.043",

language = "English",

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AU - Li, Tingxian

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AU - Kiplagat, Jeremiah K.

AU - Kang, Yong Tae

N1 - Funding Information: This work was supported by the Natural Science Foundation of China under the contract No. 51276211 and the International joint project of the Natural Science Foundation of China under the contract No. 51020105010 . The authors would like to thank the financial support from the National Research Foundation (NRF) of Korea under the grant No. 20100029120 . Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

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N2 - An innovative dual-mode thermochemical sorption energy storage method is proposed for seasonal storage of solar thermal energy with little heat losses. During the charging phase in summer, solar thermal energy is stored in form of chemical bonds resulting from thermochemical decomposition process, which enables the stored energy to be kept several months at ambient temperature. During the discharging phase in winter, the stored thermal energy is released in the form of chemical reaction heat resulting from thermochemical synthesis process. Thermodynamic analysis showed that the advanced dual-mode thermochemical sorption energy storage is an effective method for the long-term seasonal storage of solar energy. A coefficient of performance (COPh) of 0.6 and energy density higher than 1000 kJ/kg of salt can be attained from the proposed system. During the discharging phase at low ambient temperatures, the stored thermal energy can be upgraded by use of a solid-gas thermochemical sorption heat transformer cycle. The proposed thermochemical sorption energy storage has distinct advantages over the conventional sensible heat and latent heat storage, such as higher energy storage density, little heat losses, integrated energy storage and energy upgrade, and thus it can contribute to improve the seasonal utilization of solar thermal energy.

AB - An innovative dual-mode thermochemical sorption energy storage method is proposed for seasonal storage of solar thermal energy with little heat losses. During the charging phase in summer, solar thermal energy is stored in form of chemical bonds resulting from thermochemical decomposition process, which enables the stored energy to be kept several months at ambient temperature. During the discharging phase in winter, the stored thermal energy is released in the form of chemical reaction heat resulting from thermochemical synthesis process. Thermodynamic analysis showed that the advanced dual-mode thermochemical sorption energy storage is an effective method for the long-term seasonal storage of solar energy. A coefficient of performance (COPh) of 0.6 and energy density higher than 1000 kJ/kg of salt can be attained from the proposed system. During the discharging phase at low ambient temperatures, the stored thermal energy can be upgraded by use of a solid-gas thermochemical sorption heat transformer cycle. The proposed thermochemical sorption energy storage has distinct advantages over the conventional sensible heat and latent heat storage, such as higher energy storage density, little heat losses, integrated energy storage and energy upgrade, and thus it can contribute to improve the seasonal utilization of solar thermal energy.

KW - Energy upgrade

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Performance analysis of an integrated energy storage and energy upgrade thermochemical solid-gas sorption system for seasonal storage of solar thermal energy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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