固体蓄热装置蓄热过程模拟分析与实验研究  

SIMULATION ANALYSIS AND EXPERIMENTAL STUDY ON THERMAL STORAGE PROCESS OF SOLID HEAT STORAGE DEVICE

作　　者：徐耀祖 商向东[1] 徐景久 陈雷[1] 段振云[1] 赵文珍[1] Xu Yaozu;Shang Xiangdong;Xu Jingjiu;Chen Lei;Duan Zhenyun;Zhao Wenzhen(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China;Shenyang Lanhao Keji Co.,Ltd.,Shenyang 110168,China)

机构地区：[1]沈阳工业大学机械工程学院,沈阳110870 [2]沈阳兰灏科技有限公司,沈阳110168

出　　处：《太阳能学报》2021年第3期401-405,共5页Acta Energiae Solaris Sinica

基　　金：国家能源局重点资助项目(NY20150303);辽阳市双百重大科技研发项目(Y17-0-007)。

摘　　要：设计一种采用分组投切的固体蓄热装置,并以此设计搭建总加热功率150 kW的固体蓄热实验装置,搭建热物理参数非定值的数值计算方法,模拟出炉体的温度场分布,并与定值参数进行对比,得到热物理参数非定值与定值的温度曲线和蓄热量曲线;通过数值模拟和实验数据相结合的方法,确定非定值法数值计算方法的可行性;设计一种分组投切的加热方式,对分组加热的固体蓄热装置进行蓄热量及温度分析。结果表明,采用整体加热的炉体温度梯度分布区间较大,传感器点温度有温差;采用分组加热的炉体温度梯度分布区间相对缩小,传感器间温度几乎相等,相同蓄热目标温度下,提高蓄热量6.0%。In this paper,a solid heat storage device with group switching is designed,based on this,complete the building of the experimental device with total heating power of 150 kW,simulate the temperature field distribution of furnace body with a numerical method of establishing the unsteady values of thermophysical parameters,and compare with the fixed value parameters to get the temperature curve and thermal storage curve of thermal physical parameters. Through numerical simulation and experimental data combination method,determine the feasibility of the numerical method of non-fixed value method. A heating mode of grouped switching is designed to analyze the heat storage and temperature of the solid regenerator with grouped heating. The results shown that the temperature gradient distribution range of the whole heating furnace is large,and the temperature of the sensor point is temperature difference. The temperature gradient distribution range of the furnace body heated by grouping is relatively narrow,and the temperature between sensors is almost equal. Under the same regenerative target temperature,the regenerative heat is increased by 6.0%.

关 键 词：蓄热 固体蓄热器 数值模拟 分组投切 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]