以R134a为工质的分离式热管换热性能分析

发布时间：2018-03-04 02:01

  本文选题：分离型热　切入点：Ra　出处：《低温与超导》2014年12期 　论文类型：期刊论文

【摘要】：以核电站乏燃料水池散热及太阳能热利用等为应用背景,实验分析了R134a作为工质的分离式热管在不同热源温度和不同充液率条件下的换热特性。在热源温度从40℃以5℃间隔递增到65℃的条件下,共进行了6组不同的充液率实验,分别为43.7%,51.7%,60.1%,68.5%,75.2%,82.9%。实验结果表明,系统充液率达到68.5%以后,换热量和换热系数随着充液率的增加波动小,存在最佳充液率区间,并且管内蒸发温度和换热量随着热源温度的升高而升高。与氨工质关于蒸发段换热系数和换热量两方面进行数据分析对比,结果表明随着充液率的增加,两种工质在管内换热系数和换热量上存在较大差异。
[Abstract]:Based on the application background of spent fuel pool heat dissipation and solar energy utilization in nuclear power plant, The heat transfer characteristics of a separate heat pipe with R134a as a working medium under different heat source temperatures and different liquid-filling rates were analyzed experimentally. Six groups of different liquid-filling experiments were carried out under the condition that the heat source temperature increased from 40 鈩，

本文编号：1563631