制冷学报2026，Vol.47Issue(3)：133-141,9.DOI:10.12465/issn.0253-4339.20250224002
大规模跨季节储热水体解析模型开发与验证
Development and Validation of a Analytical Model for Large-Scale Water Pit Thermal Energy Storage System
摘要
Abstract
The use of large-scale water-pit thermal energy storage(PTES)systems can increase the share of renewable energy sources in district heating systems.Currently,the available models for PTES systems are mostly based on numerical models that are not amenable to fast calculation,lacking accurate analytical models.Accordingly,this study proposes a analytical model suitable for PTES.The model solves for the water and soil domains separately and then couples them through the pit sidewall,bottom temperature,and boundary heat fluxes.For water domain heat transfer analysis,a"three-zone"model is proposed,dividing the cross-section into central,transition,and edge zones.Compared to simple one-dimensional models,this"three-zone"model considers horizontal water flow,thereby providing a more accurate dynamic simulation of water temperature.In the heat transfer analysis of the soil domain,the finite cylindrical source model used in the field of ground-source heat pumps was improved to make it suitable for modeling PTES.Furthermore,the semi-analytical model was validated using 10 years of measured data from a 60 000 m³ PTES in Denmark.The average temperature errors at the top,upper-middle,middle,lower-middle,and bottom positions were 0.233%,0.44%,0.445%,0.316%,and 1.27%,respectively,all less than 1.5%,indicating that the model exhibits high accuracy and reliability.关键词
跨季节储热/大规模水池蓄热系统/数值模型/解析模型Key words
seasonal thermal energy storage/large-scale water pit thermal energy storage system/numerical model/analytical model分类
能源科技引用本文复制引用
朱梅生,马明,金和平,华瑞,罗惠恒,田志勇,罗勇强,陈勰,周超辉..大规模跨季节储热水体解析模型开发与验证[J].制冷学报,2026,47(3):133-141,9.基金项目
本文受中国长江电力股份有限公司"跨季节储热水体模型与关键技术研发"(Z342302009)项目资助.(The Project was supported by the"Research and Development of Key Technologies and Model for Water Pit Seasonal Thermal Storage"of China Yangtze Power Co.,Ltd.(No.Z342302009).) （Z342302009）
