Thermal Performance of a PCM-Based Thermal Energy Storage with Metal Foam Enhancement

被引：33
作者：
Chen, Xue [1 ,2 ]
Li, Xiaolei [2 ]
Xia, Xinlin [2 ,3 ]
Sun, Chuang [2 ,3 ]
Liu, Rongqiang [1 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, 92 West Dazhi St, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Inst Technol, Sch Energy Sci & Engn, 92 West Dazhi St, Harbin 150001, Heilongjiang, Peoples R China
[3] Harbin Inst Technol, Key Lab Aerosp Thermophys MIIT, 92 West Dazhi St, Harbin 150001, Heilongjiang, Peoples R China
来源：
ENERGIES | 2019年 / 12卷 / 17期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
thermal energy storage; phase change material; metal foam; heat transfer enhancement; PHASE-CHANGE MATERIALS; LATENT-HEAT STORAGE; POROSITY; SOLIDIFICATION; SYSTEM; CONDUCTIVITY; MATRIX;
D O I：
10.3390/en12173275
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：
The energy transport inside a phase change material (PCM) based thermal energy storage system using metal foam as an enhancement technique is investigated numerically. The paraffin is used as the PCM and water as the heat transfer fluid (HTF). The transient heat transfer during the charging and discharging processes is solved, based on the volume averaged conservation equations. The flow in PCM/foam and HTF/foam composites is modelled by the Forchheimer-extended Darcy equation, while the two-temperature model is employed to account for the local thermal non-equilibrium effect between the foam matrix and fluid phase. The results show that the overall performance is greatly improved by inserting metal foam in both HTF and PCM sides. A nearly 84.9% decrease in the time needed for the total process is found compared with the case of pure PCM, and 40% compared with the case of metal foam insert only in the PCM side. Foam porosity and HTF inlet temperature greatly affect the dynamic heat storage/release process.
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页数：18
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