摘要
为了确保顺利开展对高温熔盐射流冲击传热特性的实验研究,文中建立了射流冲击传热实验装置。同时为了确保实验方法的准确性与可靠性,以较高温度的水为实验工质,进行了射流冲击传热的实验研究,得到了驻点以及径向分布的传热性能。驻点实验结果与前人实验结果非常一致,表明了该实验系统及方法的可靠性与准确性,为后期开展高温熔盐射流冲击实验奠定了技术基础。同时探究了温度对水射流冲击传热性能的影响,其结果表明了工质热物性的重要作用。
For a purpose of preparing for making a study about the heat transfer characteritics of high temperature molten salt,an experimental equipment has been established in this paper.In order to verify and ensure the validation of experimental method,the experiment about heat transfer eharaeteritics of higher water has been carried out as well as some results about the laeat transfer performance of the stagnation point has been achieved.The results of higher water for stagnation point have good consistences with previous results,whose results indicate the accuracy and reliability of this experimental method and equipment and lay technical foundations for making a research about the heat transfer characteritics of jet impingement using the molten salt at the state of high temperature.Meanwhile,a investigation about the effect from higher temrature water on the heat transfer charaeteritics also has been carried out,whose resuts indicate the importance of thermophysical properties of working fluid.
作者
王兵涛
陈永昌
蔡剑波
王泽鹏
WANG Bing—tao;CHEN Yong—chang;CAI Jian—bo;WANG Ze—peng(Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education and Key Laboratory of Heat Transfer and Energy Conversion,Beijing Education Commission,Beijing University of Technology,Beijing 100124,China)
出处
《应用能源技术》
2017年第3期1-5,共5页
Applied Energy Technology
基金
国家自然科学基金(51276004)
关键词
射流冲击
热物性
强化传热
实验方法
Jet impingement
Heat transfer enhancement
Thermal properties
Experimental method
