| 电场作用下竖直板表面特性对霜层生长的影响 |
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| 引用本文： | 张新华,刘中良,王皆腾,勾昱君,孟声,程水源.电场作用下竖直板表面特性对霜层生长的影响[J].制冷学报,2006,27(3):54-58. |
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| 作者姓名： | 张新华 刘中良 王皆腾 勾昱君 孟声 程水源 |
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| 作者单位： | 北京工业大学传热强化与过程节能教育部重点实验室,北京,100022 |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 研究了自然对流条件下直流电场对竖直表面上霜晶初始形态的影响，拍摄了不同电场下的霜晶形态，研究发现，在成霜初期，电场越强，冷壁面上形成的水珠越小。当水珠完全冻结后，所形成的冰柱在一定时间内不断增大。在适当的电场下，亲水表面比裸铜表面能够更好地抑制霜层的厚度。对亲水表面结霜质量的研究表明，电场使结霜质量增加，并且结霜质量随着电场的增大而增大。
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| 关 键 词： | 热工学 表面特性 实验研究 结霜 电场 |
| 修稿时间： | 2005年7月28日 |
Influences of Surface Characteristics on Frost Formation on Vertical Cold Plate with Electric Field |
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| Zhang Xinhua,Liu Zhongliang,Wang Jieteng,Gou Yujun,Meng Sheng,Cheng Shuiyuan.Influences of Surface Characteristics on Frost Formation on Vertical Cold Plate with Electric Field[J].Journal of Refrigeration,2006,27(3):54-58. |
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| Authors: | Zhang Xinhua Liu Zhongliang Wang Jieteng Gou Yujun Meng Sheng Cheng Shuiyuan |
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| Abstract: | The influences of direct current(DC) electric fields on the initial form of the frost crystal on a cold vertical plate were investigated.The photos of frost crystals formed on the plate were taken with different electric field intensities.The results show that at the initial stages of the frost formation,the stronger the electric field,the smaller the water drops formed on the cold plate.After the water drops froze completely,the formed ice columns would grow up gradually.The frost layer thickness on hydrophilic coating was lower than that on copper surface under certain electric-field intensity.The result of this study also shows that electric field leads to the frost mass increase,and the frost mass increases with the increase of the electric field intensity. |
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| Keywords: | Pyrology Surface characteristic Experimental Frost formation Electric field |
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