Thermal performance difference of phase change energy storage units based on tubular macro-encapsulation
Thermal performance difference of phase change energy storage units based on tubular macro-encapsulation
复制标题
基于管状宏观封装的相变储能单元热性能差异
DOI：
10.1016/j.scs.2019.101662
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发表时间：
2019-10
影响因子：
11.7
通讯作者：
Wang YuHan
中科院分区：
文献类型：
--
作者：
Feng GuoHui;Liang Dong;Huang KaiLiang;Wang YuHan
基于宏封装技术的相变储能装置具有成本相对较低的优点，在建筑节能中具有大规模应用的潜力。本文通过数值模拟和实验验证，对基于管状宏包封的PCES单元的热性能进行了比较和分析。不同的管道材料（镀锌钢，PET，PERT和PP）和管道直径（从20毫米到50毫米）进行了比较。提出了用塑料封装材料与普通镀锌钢封装材料相变时间之比即封装冲击因子（EIF）来评价基于塑料管的PCES单元的热性能。计算结果表明，钢壳封装的热性能优于塑料壳封装，但差异不明显。当水浴温度从45 ℃变化到55 ℃时，EIF从1.6下降到1.57，说明水温对EIF的影响很小。如果需要加速热存储过程，则增加相变材料（PCM）的热导率在本布置中是一个很好的选择。
Phase change energy storage (PCES) unit based on macro-encapsulation has the advantage of relatively low cost and potential for large-scale use in building energy conservation. Herein, the thermal performance of PCES unit based on tubular macro-encapsulation was compared and analyzed through numerical simulations using the enthalpy-porosity model with experimental validation. Different pipe materials (galvanized steel, PET, PERT, and PP) and tubular diameters (from 20 mm to 50 mm) were considered for comparison. The encapsulating impact factor (EIF), ratio between the phase change time using certain plastic encapsulation material and that using common galvanized steel, was raised up and used to evaluate the thermal characteristics of the PCES units based on plastic pipes. The calculated results indicate that steel encapsulation is better than plastic encapsulation in terms of thermal performance, but the difference is not obvious. When the water bath temperature changes from 45 ℃ to 55 ℃, the EIF decreases from 1.6 to 1.57, which means that the influence of water temperature on the EIF is small. Increasing thermal conductivity of phase change material (PCM) is a good choice in the present arrangement if the thermal storage process needs to be accelerated.
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DOI：
10.3390/ma9050361
发表时间：
2016-05-12
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Huang K;Liang D;Feng G;Jiang M;Zhu Y;Liu X;Jiang B
通讯作者：
Jiang B
影响因子：
6.4
作者：
M. Jaworski
通讯作者：
M. Jaworski
影响因子：
11.2
作者：
Guo, Shaopeng;Li, Hailong;Yan, Jinyue
通讯作者：
Yan, Jinyue
影响因子：
6.7
作者：
Esen, M
通讯作者：
Esen, M
DOI：
10.1016/j.ijheatmasstransfer.2013.08.001
发表时间：
2013-12
影响因子：
5.2
作者：
N. Dhaidan;J. Khodadadi;T. Al-Hattab;Saad M. Al-Mashat
通讯作者：
N. Dhaidan;J. Khodadadi;T. Al-Hattab;Saad M. Al-Mashat