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2 蓄热器设计参数

Table 2 Design parameters of heat accumulator

螺旋数/圈 螺距/mm 换热面积/cm2 复合相变材料填充质量/g 5 16 379.2 393.4 6 13.3 448 384.6 7 11.4 521.6 374 8 10 592 363.7 9 8.8 662.4 352.7 10 8 732.8 342.6