氨水溶液节流过程中焦汤效应的试验研究  

Experimental investigation of Joule-Thomson effect for ammonia solution throttle process

作　　者：刘小军[1] 梅宁[1] 丁爽[1] 赵杰[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《热科学与技术》2009年第4期355-360,共6页Journal of Thermal Science and Technology

基　　金：S863计划项目(2008AA05208);国家自然科学基金资助项目(50676086;50806069)

摘　　要：氨水是一种复杂的二元溶液,其状态方程至今尚无满意的关系式,因此对氨水等焓节流效应的研究有很大的现实意义。采用文献[1]提出的氨水立方体型方程的形式对氨水的汤姆-焦耳逊系数进行了理论的计算,并对氨水溶液节流效应进行了试验的研究。结果表明:采用的氨水立方体型方程计算的汤姆-焦耳逊系数与实验结果比较吻合;氨水在初始压力相同的情况下,节流后的压力越低得到的节流后温度越低,初始温度越高得到的节流后温度越高;氨水在初始温度相同的情况下,初始压力越高得到的节流后温度越低。Ammonia solution is a complex binary solution. However, no satisfactory equation of state for ammonia solution was found yet. Thus the study of the throttle effect of ammonia-water is of great significance. The cube model equation of ammonia solution was adopted to calculate the J-T coefficient and a series of experimental of ammonia-water throttle process were carried out. The results showed that： the J-T coefficient which calculate with triparameter cubic equation of ammonia-water nearly replicate the empirical data; with the same initial pressure, the lower the final pressur, the lower the final temperature; the higher the initial temperature, the higher the final temperature; with the same initial temperature, the higher the initial pressure, the lower the final temperature.

关 键 词：氨水 氨水立方体型方程 焦耳-汤姆逊效应 焦耳-汤姆逊系数 节流试验 

分 类 号：TB612[一般工业技术—制冷工程] S143.12[农业科学—肥料学]