Optimal design and application of a compound cold storage system combining seasonal ice storage and chilled water storage
Optimal design and application of a compound cold storage system combining seasonal ice storage and chilled water storage
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DOI：
10.1016/j.apenergy.2016.03.005
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发表时间：
2016-06
期刊：
影响因子：
11.2
通讯作者：
Chengchu Yan;Chengchu Yan;W. Shi;Xianting Li;Yang Zhao
中科院分区：
文献类型：
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作者：
Chengchu Yan;Chengchu Yan;W. Shi;Xianting Li;Yang Zhao
季节性冷库利用自然冷源进行冷却，是一种可持续的制冷技术。然而，这种技术存在存储空间大、可靠性差等局限性。将季节性储存和短期储存结合起来可能是一个有前途的解决方案，但它还没有得到充分的探索。提出了一种将基于热管的季节性冰蓄冷系统与冷水蓄冷系统相结合的复合式蓄冷系统。季节性冰蓄冷系统自动以冰的形式对冬季冷能进行充电。在夏天，储存的冰被提取出来冷却，然后融化的冰被用作冷水储存的制冷介质。对季节性冰蓄冷系统和复合蓄冷系统进行了设计优化，包括热管的尺寸、蓄冷箱的结构和体积以及冷水机组的容量。通过一个案例研究，展示了该系统的设计和在北京某实际建筑中的应用。结果表明，两种冷库的合理组合可以大大提高季节性冷库的适用性，使建筑制冷系统的全生命周期成本降低40%。
Seasonal cold storage using natural cold sources for cooling is a sustainable cooling technique. However, this technique suffers from limitations such as large storage space and poor reliability. Combining seasonal storage with short-term storage might be a promising solution while it is not explored sufficiently. This paper presents a compound cold storage system that combines a heat pipe-based seasonal ice storage system with a chilled water storage system. The seasonal ice storage system automatically charges winter cold energy in the form of ice. In summer, the stored ice is extracted for cooling, and then the melting ice is used as a chilling medium for chilled water storage. Design optimization of the seasonal ice storage system and the compound storage system is addressed, including the sizes of heat pipes, the configuration and volume of the cold storage tank and the chiller capacity. A case study is conducted to demonstrate the design and the application of the proposed system in a real building in Beijing. Results show that the appropriate combination of the two types of cold storage can greatly improve the applicability of the seasonal cold storage and reduce the life-cycle cost of a building cooling system by 40%.