摘要
在自行设计、制作的强化凝结换热模型基础上,以R11为工质,对高压电场下的凝结液膜进行了实验分析,得出了表面微扰的增长行为取决于表面能,弹性势能,电能的交互作用关系,电场既可以加强也可以抑制表面微扰引发的表面不稳定性.所以在适当的电场强度下,可以促使液膜凝结成珠状或假珠状,明显提高强化换热系数.
On the basis of enhancement of condensation heat transfer model by self aesign and production, R11 is selected as the working fluid, analysis for condensated film in high - voltage electric field, as a result of the growth behavior of surface perturbations depends on surface energy, elastic potential energy, electric energy and electromechanical interaction,it turns out that the electric field can either enhance or suppress the surface instability introduced by surface perturbations. Therefore, the electric field at the appropriate intensity can promote film condensating bead or false bead, and increase enhancing heat transfer coefficient obviously.
出处
《哈尔滨理工大学学报》
CAS
2008年第6期105-107,共3页
Journal of Harbin University of Science and Technology
基金
黑龙江省教育厅科学技术研究项目(11511085)
关键词
电场
表面微扰
凝结液膜
electric field
surface perturbations
condensate film
作者简介
陈春天（1964-），男，哈尔滨理工大学教授．
