液氦极限过热度计算方法比较  

Comparison of calculation methods of limit of superheat temperature of liquid helium

作　　者：董磊[1] 鲁雪生[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200030

出　　处：《低温工程》2005年第6期1-4,共4页Cryogenics

基　　金：国家自然科学基金(50476022)支持

摘　　要：利用预测液体极限过热度的经验公式,对液氦的极限过热度进行了计算,对各种方法进行了比较与分析;指出采用涨落理论所导出的公式对液氦极限过热度所进行的预测具有实践上的意义和价值。The limits of superheat temperatures of liquid helium are calculated using several experiential equations for estimating the limits of superheat tion methods are compared and analyzed. It is ation have practical significance and value for um temperatures of a liquid. The applicabilities of these calculaalso pointed out that the equations educed with theory fluctuestimating the limits of superheat temperatures of liquid helium.

关 键 词：液氦 极限过热度 涨落理论 

分 类 号：TB611[一般工业技术—制冷工程]