@article{Xie2026, 
author = {Yuanyuan Xie and Yanping Luo and Jingwei Wang and Wenwu Zhang and Xiongwen Xu},
title = {Research on Labyrinth-Type Water-Based Cold Thermal-Energy Storage in the Space Under Subway-Platform Slabs},
year = {2026},
journal = {Journal of Refrigeration},
volume = {47},
number = {1},
pages = {147-154},
keywords = {metro air-conditioner, labyrinth-type water-based cold thermal energy storage, turbulence model, model experiment},
url = {https://www.sciopen.com/article/10.12465/issn.0253-4339.20250102001},
doi = {10.12465/issn.0253-4339.20250102001},
abstract = {Cold thermal-energy storage technology for air conditioning is an important measure to achieve "peak shaving and valley filling". This study proposes a water-based cold thermal-energy storage solution that utilizes the space under metro-platform slabs to create a labyrinth-type cold water-storage tank. To investigate the feasibility of this solution, we first design a scaled-down model experiment based on the Reynolds-number similarity criterion and employ various turbulence models to numerically simulate the cold release and storage processes in a cold-water tank. The accuracies of these turbulence models for such mixed flows are analyzed by comparing the experimental and numerical results. The comparison shows that the large-eddy model is more accurate for modeling turbulent flow in this type of labyrinthine cold water-storage tank with mixed flows. Numerical simulations show that the efficiency of charging and discharging cold thermal energy using labyrinth-type water-based cold thermal storage in the space under metro-platform slabs is approximately 60%.}
}