雪花型翅片提高相变储热单元储/放热性能
张永学, 王梓熙, 鲁博辉, 杨胜旗, 赵泓宇

Enhancement of charging and discharging performance of a latent-heat thermal-energy storage unit using snowflake-shaped fins
Yongxue ZHANG, Zixi WANG, Bohui LU, Shengqi YANG, Hongyu ZHAO
表1 储热单元中所用材料的热物理性质
Table 1 Thermophysical properties of materials used in heat storage unit
属性石蜡
密度/(g/cm3)880(s)/760(l)998.28960
比热容/[J·(g·K)]1.8(s)/2.4(l)4182402.5
热导率/[W·(m·K)]0.2(s)/0.1(l)0.6389
熔点/℃28~40
相变潜热/(J/g)157
密度/(g/cm3)0.86(s)/0.79(l)
体膨胀系数/K-10.0006
运动黏度/(m2/s)3.3×10-6