Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density

Absorption thermal storage, as a type of thermal storage technology with a high energy storage density and long thermal storage period, is the key to storing solar thermal energy and solving the mismatch between solar thermal energy supply and demand during different seasons. Traditional absorption...

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Main Authors: You Jinfang, Gao Jintong, Min Heng, Liu Weiwei, Jiang Long, Wang Ruzhu, Xu Zhenyuan
Format: Article
Language:zho
Published: Journal of Refrigeration Magazines Agency Co., Ltd. 2024-12-01
Series:Zhileng xuebao
Subjects:
Online Access:http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2024.06.033
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author You Jinfang
Gao Jintong
Min Heng
Liu Weiwei
Jiang Long
Wang Ruzhu
Xu Zhenyuan
author_facet You Jinfang
Gao Jintong
Min Heng
Liu Weiwei
Jiang Long
Wang Ruzhu
Xu Zhenyuan
author_sort You Jinfang
collection DOAJ
description Absorption thermal storage, as a type of thermal storage technology with a high energy storage density and long thermal storage period, is the key to storing solar thermal energy and solving the mismatch between solar thermal energy supply and demand during different seasons. Traditional absorption systems avoid crystallization by limiting the solution concentration, which assures reliability and safety but causes a limited energy storage density of the system. In this study, a closed three-phase absorption heat storage system is designed and tested. Through filtering and high-level inlet by the filters, crystal fusion by the heating rods, and flushing of the solution circulation lines, the system can operate normally after the solution crystallization, increase the concentration glide, and improve the energy storage density. Testing shows that the energy storage density of the system can reach 220 kW·h/m<sup>3</sup> upon heat supply, which is an 114% increase compared to traditional two-phase absorption heat storage systems. Hence, the three-phase absorption heat storage technology with the utilization of crystallization is expected to realize high-density long-term solar energy thermal storage.
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spelling doaj.art-b6206dc718264633a0bcaec5eacc362f2025-03-04T09:33:43ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392024-12-0145334078553100Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage DensityYou JinfangGao JintongMin HengLiu WeiweiJiang LongWang RuzhuXu ZhenyuanAbsorption thermal storage, as a type of thermal storage technology with a high energy storage density and long thermal storage period, is the key to storing solar thermal energy and solving the mismatch between solar thermal energy supply and demand during different seasons. Traditional absorption systems avoid crystallization by limiting the solution concentration, which assures reliability and safety but causes a limited energy storage density of the system. In this study, a closed three-phase absorption heat storage system is designed and tested. Through filtering and high-level inlet by the filters, crystal fusion by the heating rods, and flushing of the solution circulation lines, the system can operate normally after the solution crystallization, increase the concentration glide, and improve the energy storage density. Testing shows that the energy storage density of the system can reach 220 kW·h/m<sup>3</sup> upon heat supply, which is an 114% increase compared to traditional two-phase absorption heat storage systems. Hence, the three-phase absorption heat storage technology with the utilization of crystallization is expected to realize high-density long-term solar energy thermal storage.http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2024.06.033Absorption thermal storageenergy storage densityCrystallizationprototype designsolar energy
spellingShingle You Jinfang
Gao Jintong
Min Heng
Liu Weiwei
Jiang Long
Wang Ruzhu
Xu Zhenyuan
Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
Zhileng xuebao
Absorption thermal storage
energy storage density
Crystallization
prototype design
solar energy
title Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
title_full Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
title_fullStr Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
title_full_unstemmed Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
title_short Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
title_sort design and test of a three phase absorption thermal storage system with high energy storage density
topic Absorption thermal storage
energy storage density
Crystallization
prototype design
solar energy
url http://www.zhilengxuebao.com/thesisDetails#10.12465/j.issn.0253-4339.2024.06.033
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AT minheng designandtestofathreephaseabsorptionthermalstoragesystemwithhighenergystoragedensity
AT liuweiwei designandtestofathreephaseabsorptionthermalstoragesystemwithhighenergystoragedensity
AT jianglong designandtestofathreephaseabsorptionthermalstoragesystemwithhighenergystoragedensity
AT wangruzhu designandtestofathreephaseabsorptionthermalstoragesystemwithhighenergystoragedensity
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