| 电场极性对池沸腾换热影响的机理 |
| |
| 引用本文： | 董智广,黄烜,程道来,李瑞阳.电场极性对池沸腾换热影响的机理[J].上海轻工业高等专科学校学报,2012(2):94-96. |
| |
| 作者姓名： | 董智广 黄烜 程道来 李瑞阳 |
| |
| 作者单位： | [1]上海应用技术学院城市建设与安全工程学院,上海201418 [2]上海理工大学能源与动力工程学院,上海200093 |
| |
| 基金项目： | 上海应用技术学院引进人才科研启动项目（YJ2011-16）;七海市重点课程建设项目（1020M10100）;热能与动力工程学科建设项目（1020Q110011） |
| |
| 摘 要： | 对电场极性影响池沸腾换热的机理进行了理论分析和实验研究。在实验中，换热面为一平板并接地作为0电极，高压电极为平行于换热面的线状电极。实验结果表明，正电压下的强化换热效果优于负电压下的强化换热效果。这是由于施加正电压时不会有阴极发射电子现象，而施加负电压会有阴极发射电子现象，阴极发射电子削弱了电场对沸腾换热的作用。
|
| 关 键 词： | 电水动力学 沸腾换热 强化传热 极性 |
Mechanism of Influence of Polarities on Pool Boiling Heat Transfer in Electric Field |
| |
| DONG Zhi-guang,HUANG Xuan,CHENG Dao-lai,LI Rui-yang.Mechanism of Influence of Polarities on Pool Boiling Heat Transfer in Electric Field[J].Journal of Shanghai Institute of Technology(Natural Science),2012(2):94-96. |
| |
| Authors: | DONG Zhi-guang HUANG Xuan CHENG Dao-lai LI Rui-yang |
| |
| Affiliation: | 1. School of Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai 201418, China; 2. College of Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China) |
| |
| Abstract: | The mechanism of pool boiling heat transfer influenced by different polarities of electric field was investigated theoretically and experimentally. The high voltage electrode was straight wire electrode parallel to the heat exchanger surface while the heat transfer surface of parallel plate was earthed as 0 electrode in this experiment. Experimental results show that positive voltage brings better enhance- ment effects of heat transfer than negative voltage, because under positive voltage there is no charge injection phenomenon which occurs under negative voltage, and the charge injection from cathode can weaken boiling heat transfer in an electric field. |
| |
| Keywords: | electrohydrodynamics boiling heat transfer heat transfer enhancement polarity |
| 本文献已被 维普 等数据库收录！ |
