双螺旋盘管内膨胀石墨对相变材料的传热强化机制与蓄放热性能

郭艳芹, 曾镇, 张弘光, 凌子夜, 张正国, 方晓明

Investigation of heat transfer enhancement mechanism and performance of phase change materials using expanded graphite in double helical coils

Yanqin GUO, Zhen ZENG, Hongguang ZHANG, Ziye LING, Zhengguo ZHANG, Xiaoming FANG

表3 石蜡和不锈钢的物理性质

Table 3 Physical properties of paraffin and stainless steel

物理性质 石蜡 不锈钢 ρ /(kg/m³) 850 8030 cp /[J/(kg · K)] 1600 502 λ /[W/(m · K)] 0.2～0.24 16 Tm/K 351～354 — μ/cP 17 —