液态铅铋合金热物性研究  

Thermophysical properties of liquid lead-bismuth eutectic

作　　者：苏子威[1] 周涛[1] 刘梦影[1] 邹文重[1] 

机构地区：[1]华北电力大学核热工安全与标准化研究所,北京102206

出　　处：《核技术》2013年第9期35-39,共5页Nuclear Techniques

基　　金：中国科学院战略性先导科技专项(XDA03040000)资助

摘　　要：液态铅铋合金(Lead-Bismuth Eutectic,LBE)是加速器驱动次临界系统(Accelerator driven subcritical,ADS)重要的散裂靶材料和冷却剂候选材料,其热力学物理性质是ADS研发过程中必须解决的基础问题。通过对已有定律的推算,得出液态铅铋合金熔沸点、密度、比热容、粘度、热导率的热物性公式;并拟合了其他学者的实验研究数据,得出计算铅铋物性的拟合公式。通过对比分析可知:拟合公式与已有定律推算公式趋向一致,吻合较好;且拟合公式更趋近实验值,精确度高,最大偏差不超过1%。Background： Liquid lead-bismuth eutectic （LBE） is important spallation target materials and candidate coolant materials in accelerator driven subcritical （ADS）system. Purpose： Its thermodynamic physical properties are keys to understand the basic problems in ADS R＆D. Methods： By the calculation of scientific laws as well as fitting other scholars＇ experimental results, we tried to obtain the above thermodynamics physical properties. Results： By the calculation, we got formula about characteristic temperatures, density, specific heat, viscosity and thermal conductivity of liquid lead-bismuth alloy. And by fitting other scholars＇ experimental results, we got the fitting formula. Conclusions： Finally, by the contrast analysis, we found that the fitting formula and calculation formula agree well, and fitting formula more approaches the experimental value with a high accuracy whose differential deviation is not over 1%.

关 键 词：加速器驱动次临界系统 液态铅铋合金 热物性 

分 类 号：TL33[核科学技术—核技术及应用]