Abstract

Heat storage performance of an open thermochemical heat storage (TCHS) system using composite salt hydrates of Wakkanai siliceous shale (WSS) - 9.6 wt.% LiCl was investigated numerically. A two-dimensional model considering the combined heat and mass transfer was developed. The calculation results were validated by the experimental results obtained in our previous study. The inlet air temperature, inlet air relative humidity, humid air flow rate, the ratio of the thickness of air channel and the thickness of composite solid wall, and length of the TCHS unit were evaluated to evaluate the heat storage performance. When the ratio of the thickness of air channel and the thickness of composite solid wall is 5 and the length of the heat storage unit is 0.1 m, the volumetric heat storage density of the open TCHS system can reach 510 MJ/m3.

Details

Title
Performance Assessment of an Open Thermochemical Heat Storage (TCHS) System Using Composite Salt Hydrates
Author
Liu, H Z 1 ; Wang, W T 2 ; Liu, S Q 2 ; Ye, Z D 2 ; Huang, B J 2 ; Yu, G Q 2 ; Nagano, K 3 

 Department of Building Environment and Energy Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China; Environmental System Research Laboratory, Faculty of Engineering, Hokkaido University, N13-W8, Sapporo 060-8628, Japan 
 Department of Building Environment and Energy Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China 
 Environmental System Research Laboratory, Faculty of Engineering, Hokkaido University, N13-W8, Sapporo 060-8628, Japan 
Publication year
2021
Publication date
Mar 2021
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2512953426
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.