Thermal performance of solar air collection-storage system with phase change material based on flat micro-heat pipe arrays
Thermal performance of solar air collection-storage system with phase change material based on flat micro-heat pipe arrays
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DOI：
10.1016/j.enconman.2017.03.039
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发表时间：
2017-06
影响因子：
10.4
通讯作者：
Tengyue Wang;Y. Diao;T. Zhu;Yaohua Zhao;Jing Liu;Xiang-qian Wei
中科院分区：
文献类型：
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作者：
Tengyue Wang;Y. Diao;T. Zhu;Yaohua Zhao;Jing Liu;Xiang-qian Wei
在这项研究中，采用扁平微热管阵列（FMHPA）作为传热核心元件，设计了一种采用相变材料（PCM）的新型太阳能集热储热系统（ACSTS）。太阳能空气收集器由FMHPA和真空管组成。潜热存储装置（LTSD）利用月桂酸（一种脂肪酸）作为 PCM。实验通过不同风量流量测试集热器效率和蓄热装置充放电时间的性能。经过一系列测试，得出结论，高风量流量有助于提高集热器效率、缩短充放电时间并增强瞬时传热，而在放电过程中60 m3/h的风量可提供稳定的出口温度。放电期间的累积传热量在 4210 至 4300 kJ 之间。
In this study, a new type of solar air collection-storage thermal system (ACSTS) with phase change material (PCM) is designed using flat micro-heat pipe arrays (FMHPA) as the heat transfer core element. The solar air collector comprises FMHPA and vacuum tubes. The latent thermal storage device (LTSD) utilizes lauric acid, which is a type of fatty acid, as PCM. The experiments test the performance of collector efficiency and charging and discharging time of thermal storage device through different air volume flow rates. After a range of tests, high air volume flow rate is concluded to contribute to high collector efficiency and short charging and discharging time and enhance instantaneous heat transfer, whereas an air volume flow rate of 60 m3/h during discharging provides a steady outlet temperature. The cumulative heat transfer during discharging is between 4210 and 4300 kJ.