Cooling performance of a thermal energy storage-based portable box for cold chain applications
Cooling performance of a thermal energy storage-based portable box for cold chain applications
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DOI：
10.1016/j.est.2020.101238
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发表时间：
2020-04
影响因子：
9.4
通讯作者：
Jianping Du;Binjian Nie;Yanping Zhang;Zheng Du;Li Wang;Yulong Ding
中科院分区：
文献类型：
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作者：
Jianping Du;Binjian Nie;Yanping Zhang;Zheng Du;Li Wang;Yulong Ding
对一种集成相变材料蓄冷模块的便携式箱体的制冷性能进行了研究。PCM模块的位置，PCM的熔点，和隔热材料的冷却时间的盒子上的效果进行了数值研究与实验验证的模型。检查箱内的PCM模块的五种配置：情况1 - 100%的PCM位于顶部;情况2 - 20%在顶部，20%在每个侧壁上;情况3 - 25%在每个侧壁上;情况4 - 20%在每个侧壁上，20%在底部;情况4 - 20%在每个侧壁上;情况5 - 20%在每个侧壁上。和情况5 - 100%在底部。考虑熔点为2 °C、3 °C、4 °C、5 °C和8 °C的五种不同PCM。比较了两种不同保温材料（聚氨酯、真空绝热板）的降温性能。结果发现，PCM模块的配置，PCM熔点，和类型的绝缘材料都影响冷却时间。具有20%位于顶部和20%位于每个侧壁上、熔点为2 °C和真空绝热板（VIP）的PCM的配置给出了最长的持续时间。最大冷却时间可达46.5 h，最大出料效率达90.7%，最大出料深度达99.4%，具有很大的冷链应用潜力。
Cooling performance of a portable box integrating with phase change material (PCM)-based cold thermal energy storage (TES) modules was studied and reported in this paper. The effects of locations of the PCM modules, melting point of the PCM, and insulation materials on the cooling duration of the box were numerically investigated with an experimentally validated model. Five configurations of PCM modules inside the box were examined: Case 1 - 100 % of the PCM located at the top; Case 2 - 20 % at the top and 20 % on each of side walls; Case 3 - 25 % on each of the side walls; Case 4 - 20 % on each of the side walls and 20 % at the bottom; and Case 5 - 100 % at the bottom. Five different PCMs with melting points at 2 °C, 3 °C, 4 °C, 5 °C and 8 °C were considered. A comparison was made between two different insulation materials (polyurethane, vacuum insulated panels) on the cooling performance. It was found that the configuration of PCM modules, the PCM melting point, and the type of insulation material all affected the cooling durations. The configuration of PCM with 20 % located at the top and 20 % on each of the side walls, with the melting point at 2 °C and the vacuum insulated panel (VIP) gave the longest duration time. The maximum cooling time was up to 46.5 h with the maximum discharging efficiency at 90.7 % and the highest discharging depth at 99.4 %, offering a great potnetial for cold chain applications.