Theoretical analysis and experiment of thermochemical composite sorption heat storage cycle

YAN Ting; WANG Ruzhu; LI Tingxian

doi:10.11949/j.issn.0438-1157.20161414

您当前的位置：

首页 >

文章列表页 >

Theoretical analysis and experiment of thermochemical composite sorption heat storage cycle

更新时间：2025-11-26

- Theoretical analysis and experiment of thermochemical composite sorption heat storage cycle
- CIESC Journal Issue S2, Pages: 311-317(2016)
- 作者机构：
  
  1. 上海电力学院能源与机械工程学院,上海,200090
  2. 上海交通大学制冷与低温工程研究所,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161414
  CLC： K02
- Online First：30 December 2016，
  
  Published：30 December 2016
- 稿件说明：
移动端阅览
YAN Ting, WANG Ruzhu, LI Tingxian. Theoretical analysis and experiment of thermochemical composite sorption heat storage cycle[J]. CIESC Journal, 2016, (S2): 311-317.
DOI：

YAN Ting, WANG Ruzhu, LI Tingxian. Theoretical analysis and experiment of thermochemical composite sorption heat storage cycle[J]. CIESC Journal, 2016, (S2): 311-317. DOI： 10.11949/j.issn.0438-1157.20161414.

摘要

对一种基于固-气可逆化学反应的热化学复合吸附储热循环的储热特性以及能量品位提升性能进行了理论分析，并以MnCl2/SrCl2/NH3作为工质对进行了实验研究。理论分析表明，热化学复合吸附储热循环不仅可以降低外界驱动热源的温度并保证输出热能温度稳定，而且能大幅度地提升输出热能的温度品位。在MnCl2和SrCl2都参与放热的实验工况下，获得的储热效率为93.31%。MnCl2复合吸附剂的总储热密度按单位质量反应盐MnCl2和单位质量的固化吸附剂计量分别为4393.36和3734.36 kJ·kg-1；SrCl2复合吸附剂的总储热密度按单位质量反应盐SrCl2和单位质量的固化吸附剂计量分别为1947.28和1655.19 kJ·kg-1。结果表明，热化学储热是一种相当有潜力的储热方式，可为低品位热能的高效回收利用提供强有力的技术支持。

Abstract

A novel thermochemical composite sorption heat storage cycle was described using reversible solid-gas chemical reaction.The thermal energy storage and energy upgrade characteristics for the low-grade thermal energy was analyzed theoretically.Meanwhile

the experimental research was carried out by employing the MnCl2/SrCl2/NH3 as the working pair.The theoretical analysis suggested the thermochemical composite sorption heat storage cycle not only reduces the driving temperature of external heat source

but also can enhance significantly energy upgrade capacity compared to the thermochemical adsorption heat storage cycle.Compared to the thermochemical resorption energy storage cycle

it can provide the stable heat output temperature and further improve the thermal energy grade.Under the operation condition of charging temperature of 135℃ for the desorption of MnCl2 and temperature of 12℃ for the adsorption of SrCl2

desorption temperature of 90℃ for the regeneration of SrCl2

condensation/evaporation temperature of 12℃

discharging temperature of 40℃ for MnCl2 and SrCl2

the obtained thermal energy storage efficiency is 93.31%.The heat storage density of MnCl2-based composite sorbents is 4393.36 kJ·kg-1 MnCl2 or 3734.36 kJ·kg-1 composite sorbents.Meanwhile

the heat storage density of SrCl2-based composite sorbents is 1947.28 kJ·kg-1 SrCl2 or 1655.19 kJ·kg-1 composite sorbents.The heat storage density of materials is as 10 to 20 times as that of the sensible heat storage and phase change heat storage materials.Therefore

thermochemical composite sorption heat storage is feasible and a very potential way in storing heat.It can be used for recovering the low-grade thermal energy to promote the highly efficient utilization of thermal energy.

关键词

Keywords

references

Views

164

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Preparation of ZTIF based hydrophobic micro-mesoporous carbon and their adsorption and separation performance of 5-hydroxymethylfurfural

Heat storage performance of composite adsorbent with activated carbon fiber

Fine adjustment of elliptical windows of ZIFs and performances of adsorptive separation of furfural/5-hydroxymethylfurfural

Preparation of amino modified styrene-divinylbenzene resin and its adsorption of rhenium

Dehumidification characteristics of recirculated desiccant wheel dehumidification system under variable working conditions

Related Author

LYU Tiantian

YUAN Min

WANG Jiang

GAO Meizhen

YANG Jiahui

XU Hong

DONG Jinxiang

SHI Qi

Related Institution

College of Chemical Engineering and Technology, Shanxi Key Laboratory of Chemical Product Engineering, Taiyuan University of Technology

School of Mechanical Engineering, Shanghai Jiao Tong University

College of Chemistry and Chemical Engineering, Taiyuan University of Technology

State Key Laboratory of Nuclear Resources and Environment, School of Nuclear Science and Engineering, East China University of Technology

Sunresin New Materials Co., Ltd

⁰