导热油换热器预热煤粉气流的试验研究

来振亚,毛睿,李源,张平安,杜学森,周昊

Experimental study on preheating pulverized coal air flow by heat exchanger using thermal oil

Zhen-ya LAI,Rui MAO,Yuan LI,Ping-an ZHANG,Xue-sen DU,Hao ZHOU

表 2 材料的物理特性

Tab.2 Physical properties of materials

材料 tin /℃ ρ /(kg·m−3) cp /(J·kg−1·K−1) λ/(W·m−1·K−1) 导热油 165 769 2505 0.1107 导热油 190 751 2590 0.1078 导热油 215 735 2690 0.1049 导热油 270 691 2860 0.0985 煤粉 60 1400 1130 0.0650 20号钢 — 7850 465 48