【作者】 宋永吉； 任晓光； 蒋英杰； 程刚；

【Author】 SONG Yongji, REN Xiaoguang, JIANG Yingjie, CHENG Gang (Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617)

【机构】 北京石油化工学院；

【摘要】 在紫铜基地表面制备了纳米结构碳膜,此种超疏水表面具有较高接触角。池式沸腾传热实验表明,水在这种表面上的传热系比普通表面大约10 000 W／(m2·K);同样传热温差下,传热通量约大2×105W／m2。实验过程中观察发现,气泡的脱离直径一般小于2 mm,气泡脱离频率比普通表面快得多。阻垢实验证明,这种表面具有优良的阻垢性能。更多还原

【Abstract】 A novel nanostructure film was prepared on copper substrate. This kind of super hydrophobic surface possessed higher contact angel. Pool boiling heat transfer experiments indicated that the heat transfer coefficient for super hydrophobic surface was larger about 10 000 W/(m2 · K) than that of plain copper surface. And heat flux of super hydrophobic surface was larger about 2×105 W/m2 than that of plain copper surface at same temperature difference. The observation found very smaller departure bubble diameter and faster departure frequency than that of pure copper surface. Scaling experiment also proved the nanostructured film possessed good anti fouling characteristics.更多还原