高储能密度三相吸收式储热系统的设计与测试

游锦方; 高金彤; 闵恒; 刘巍巍; 江龙; 王如竹; 徐震原

doi:10.12465/j.issn.0253-4339.2024.06.033

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高储能密度三相吸收式储热系统的设计与测试

更新时间：2024-12-13

- 高储能密度三相吸收式储热系统的设计与测试
- Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density
- 制冷学报 2024年45卷第6期页码：33-40
- 作者机构：
  
  1.上海交通大学制冷与低温工程研究所　上海　 200240
  2.中建三局集团有限公司　武汉　 430064
- 作者简介：
  
  徐震原，男，副教授，上海交通大学制冷与低温工程研究所，021-34204358, E-mail: xuzhy@sjtu.edu.cn。研究方向：太阳能和余热利用。
- 基金信息：
  
  国家自然科学基金(52293411)
- DOI：10.12465/j.issn.0253-4339.2024.06.033
  中图分类号： TB61⁺1;TK512
- 收稿日期：2023-10-22，
  
  修回日期：2023-11-10，
  
  录用日期：2023-11-14，
  
  纸质出版日期：2024-12-16
- 稿件说明：
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游锦方, 高金彤, 闵恒, 等. 高储能密度三相吸收式储热系统的设计与测试[J]. 制冷学报, 2024,45(6):33-40.

You Jinfang, Gao Jintong, Min Heng, et al. Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density[J]. Journal of refrigeration, 2024, 45(6): 33-40.
游锦方, 高金彤, 闵恒, 等. 高储能密度三相吸收式储热系统的设计与测试[J]. 制冷学报, 2024,45(6):33-40. DOI： 10.12465/j.issn.0253-4339.2024.06.033.

You Jinfang, Gao Jintong, Min Heng, et al. Design and Test of a Three-Phase Absorption Thermal Storage System with High Energy Storage Density[J]. Journal of refrigeration, 2024, 45(6): 33-40. DOI： 10.12465/j.issn.0253-4339.2024.06.033.

摘要

吸收式储热是一种储能密度高且储热周期长的储热技术，是存储太阳热能并解决太阳热能在不同季节间供需不匹配问题的关键。传统的吸收式系统通过限制溶液的浓度来避免结晶的出现，从而避免对机组的可靠性和安全性构成威胁，但也导致系统储能密度有限。设计并测试了一台闭式三相吸收式储热系统。该系统通过滤筒的过滤和高位进液、加热棒的熔晶以及对溶液循环回路的冲洗等设计，使得溶液出现结晶后机组能够正常运行，增大机组可运行的浓度范围，提升吸收式储热系统的储能密度。样机经过测试，其在供热时的储能密度可达220 kW·h/m

，相对于传统的两相吸收式储热系统其储能密度提升114%，表明利用结晶的三相吸收式储热技术有望实现高密度太阳能跨季节储热。

Abstract

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 deman

d 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

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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