冰浆蓄冰槽蓄冷与释冷特性模拟分析  

Simulation on cold storage and release characteristics of ice slurry storage tanks

作　　者：于宏鑫 王宁波 田博 邵双全 Yu Hongxin;Wang Ningbo;Tian Bo;Shao Shuangquan(School of Energy and Power Engineering,Huazhong University of Science and Technology)

机构地区：[1]华中科技大学能源与动力工程学院

出　　处：《制冷与空调》2024年第12期82-88,共7页Refrigeration and Air-Conditioning

摘　　要：冰浆蓄冰槽作为动态蓄冰系统的关键部件,其蓄冷与释冷特性对系统的储能效果有着很大影响。本文搭建CFD-PBM耦合模型和冰粒融化模型,对蓄冰槽的蓄冷和释冷过程进行模拟研究。结果表明:在蓄冷时,入口流速的提高不利于提高蓄冰槽内富冰层的形状均匀性,入口流速和含冰率的提高有利于冰粒的增长;在释冷过程中,较高的入口质量流量和温度能够提升释冷速度和出口温度,而在实际应用中采用小流量、高回水温度更有利于提高蓄冰槽释冷功率的稳定性。As a key component of the dynamic ice storage system,the ice slurry storage tank has a great influence on the energy storage effect in terms of its characteris-tics of cold storage and release.A CFD-PBM coupled model and an ice particle melting model are constructed to simulate the cold storage and release process of ice storage tank.The results indicate that in the process of cold storage,the increase of inlet velocity hinders the shape uniformity improvement of the ice-rich layer in the ice storage tank.Both increase of inlet velocity and ice phase fraction will be conducive to the growth of the ice particles.In the process of cold release,the higher inlet mass flow rate and temperature will enhance the cold release rate and outlet temperature.The use of a lower mass flow rate and a higher return water temperature will be more conducive to the stability improvement of the cold release power of the storage tank in the practical application.

关 键 词：蓄冰槽 CFD-PBM耦合模型 融化模型 冰浆 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]