摘要
Based on the second law of thermodynamics,a method of energy consumption evaluation of electrohydrodynamics(EHD) enhancement of heat transfer was presented, the profit factor of available energy was newly defined.The experimental data were analyzed. The results showed that the profit factor of available energy increased with increasing heat flux under the same voltage given in experiments, while decreased with increasing voltage under the same heat flux given in experiments.It was found for the first time that the application of EHD enhancement of heat transfer was not economical when the voltage was higher than a critical value at a low heat flux. This method provided a theoretical basis for the economy of EHD heat transfer enhancement.
Based on the second law of thermodynamics, a method of energy consumption evaluation of electrohydrodynamics （EHD） enhancement of heat transfer was presented, the profit factor of available energy was newly defined. The experimental data were analyzed. The results showed that the profit factor of available energy increased with increasing heat flux under the same voltage given in experiments, while decreased with increasing voltage under the same heat flux given in experiments. It was found for the first time that the application of EHD enhancement of heat transfer was not economical when the voltage was higher than a critical value at a low heat flux. This method provided a theoretical basis for the economy of EHD heat transfer enhancement.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2006年第1期27-30,共4页
CIESC Journal
基金
国家重点基础研究发展规划项目(G2000026302)
上海市基础研究重点项目(02DJ14049).~~
关键词
可用能获益系数
强化系数
强化换热
电水动力学
profit factor of available energy
enhancement factor
heat transfer enhancement
electrohydrodynamics （EHD）
