Quantitative analysis of passive seasonal cold storage with a two-phase closed thermosyphon

被引：17
|
作者：
Li, Xingping [1 ]
Li, Ji [1 ]
Zhou, Guohui [1 ]
Lv, Lucang [1 ]
机构：
[1] Univ Chinese Acad Sci, Sch Engn Sci, 19A Yu Quan Lu Rd, Beijing 100049, Peoples R China
来源：
APPLIED ENERGY | 2020年 / 260卷
基金：
国家重点研发计划;
关键词：
Passive; Cold storage; Energy conservation; Thermosyphon; Visualization; Modeling; THERMAL-ENERGY STORAGE; HEAT-PIPE; SYSTEM;
D O I：
10.1016/j.apenergy.2019.114250
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Seasonal cold energy storage is an efficient and sustainable technique for energy acquisition that stores environmental cold energy in winter and offers free cooling in industries, such as food storage or data center cooling. This paper presents a visualized seasonal cold storage system utilizing a two-phase closed thermosyphon as the passive heat-transfer device. Meanwhile, a theoretical model of energy conservation for the passive cold energy storage system was established. The process of ice formation was quantitatively studied through water/ice temperature variations and icicle shape evolution. The effects of the ambient variables and the working period of a thermosyphon on the ice formation were identified. Finally, a conceptual passive cold storage warehouse based on our validated model was proposed and compared with a traditional warehouse cooled by air conditioning system in terms of energy conservation and benefit-cost ratio. This study provides a practical guidance for passive cold storage system design and performance evaluation.
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页数：16
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