| 球形单元储热装置蓄热特性的分析与优化 |
| |
| 引用本文： | 方桂花,王峰,刘颖杰,孙鹏博,谭心.球形单元储热装置蓄热特性的分析与优化[J].太阳能学报,2023,44(2):9-14. |
| |
| 作者姓名： | 方桂花 王峰 刘颖杰 孙鹏博 谭心 |
| |
| 作者单位： | 内蒙古科技大学机械工程学院,包头 014010 |
| |
| 基金项目： | 内蒙自治区科技创新引导奖励资金（KCBJ2018031）; 内蒙自治区科技创新引导奖励资金（2017CXYD-2） |
| |
| 摘 要： | 为提高太阳能利用率，设计一套相变蓄热装置，研究球形相变单元蓄热影响因素，保持相变材料（PCM）总质量维持在较小浮动范围内，对比不同直径、孔隙率、层间距，探究整个装置的蓄热性能。实验与模拟结果表明：同等条件下，相变球直径越小，蓄热时间越短。而考虑到加工制造难度及成本，直径为46或50 mm的蓄热球是最优选择；孔隙率、入口温度和入口流量对整体蓄热时间影响较大；相反，改变蓄热球层间距对蓄热时间的影响较小。
|
| 关 键 词： | 太阳能 蓄热球 蓄热时间 相变材料 孔隙率 |
| 收稿时间： | 2021-08-31 |
ANALYSIS AND OPTIMIZATION OF HEAT STORAGE CHARACTERISTICS OF SPHERICAL UNIT HEAT STORAGE DEVICE |
| |
| Fang Guihua,Wang Feng,Liu Yingjie,Sun Pengbo,Tan Xin.ANALYSIS AND OPTIMIZATION OF HEAT STORAGE CHARACTERISTICS OF SPHERICAL UNIT HEAT STORAGE DEVICE[J].Acta Energiae Solaris Sinica,2023,44(2):9-14. |
| |
| Authors: | Fang Guihua Wang Feng Liu Yingjie Sun Pengbo Tan Xin |
| |
| Affiliation: | School of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China |
| |
| Abstract: | Phase change heat storage technology plays an important role in the field of solar heating. In order to improve solar energy utilization, a set of phase change heat storage device was designed, the influence factors of the spherical phase change heat storage unit were studied, keeping the total mass of the phase change material （PCM） in a small changing range. The heat storage performance of the device was explored through comparing the different diameters, porosity, and interlayer spacing. Experimental and simulation results show that: under the same conditions, the smaller the diameter of the phase change ball, the shorter time for charging heat. Considering the processing difficulty and manufacturing cost, the heat storage ball with a diameter of 46 mm or 50 mm is the best choice; the porosity, inlet temperature and inlet flow have a greater impact on the overall charging heat time; on the contrary, changing the distance between the heat storage balls has smaller effect on the charging heat time. |
| |
| Keywords: | solar energy heat storage ball heat storage time phase change material porosity |
|
| 点击此处可从《太阳能学报》浏览原始摘要信息 |
|
点击此处可从《太阳能学报》下载全文 |
|
