相变蓄热蜂窝陶瓷蓄放热性能研究  

Study on Heat Storage and Release Performance of Phase Change Heat Storage Honeycomb Ceramics

作　　者：沈翰 熊志波[1] 周涛涛 吴志根[2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海 [2]同济大学环境科学与工程学院,上海

出　　处：《建模与仿真》2021年第3期668-675,共8页Modeling and Simulation

摘　　要：本文采用熔融浸渍法,将无机盐相变蓄热材料渗入到陶瓷基体当中,得到一种新型复合相变材料。研究拟在保持原有蜂窝陶瓷高导热传热性能、多孔通道的几何结构的基础上,提高蜂窝陶瓷蓄热性能。本文基于新型蜂窝陶瓷表征的热物性参数,采用Fluent软件,对添加硝酸钠的新型相变蓄热蜂窝陶瓷在高温条件的蓄放热过程进行模拟。研究结果表明,新型相变蓄热蜂窝陶瓷基体中,陶瓷的进口风速从1 m/s上升到10 m/s时,蓄热功率提高了328%。相变材料比例从10%提升到50%时,蓄热量提高了89%,陶瓷的蓄热性能得到有效提高。In this paper, the inorganic salt phase change heat storage material was infiltrated into the ceramic matrix by melt dipping method, which obtains a new composite phase change material. This re-search intends to improve the thermal performance of honeycomb ceramics on the basis of main-taining the high thermal conductivity, heat performance of the original honeycomb ceramics and the geometric structure of the porous channels. Based on the thermophysical parameters of the new composites, Fluent software was used to simulate the heat storage process under high temperature conditions. The research results show that in the new phase-change heat storage honeycomb ceramic matrix, when the inlet wind speed of the ceramic increases from 1 m/s to 10 m/s, the heat storage power is increased by 328%. When the proportion of phase change materials is increased from 10% to 50%, the heat storage capacity is increased by 89%, and the heat storage performance of ceramics is effectively improved.

关 键 词：蜂窝陶瓷 相变蓄热 数值模拟 

分 类 号：TQ1[化学工程]