高温高压下饱和湿空气焓与湿度的预测  

PREDICTION OF SATURATED HUMIDITY AND ENTHALPY OFHUMID AIR AT HIGH TEMPERATURE AND PRESSURE

作　　者：丁皓[1] 吉晓燕[1] 秦建华[1] 陆小华[1] 严晋跃[2,3] 

机构地区：[1]南京工业大学化工学院,江苏南京210009 [2]上海交通大学动力与能源工程学院,上海200052 [3]瑞典皇家理工学院化学工程与技术系,瑞典斯德哥尔摩

出　　处：《化工学报》2002年第8期879-882,共4页CIESC Journal

基　　金：国家自然科学基金 (No .2 993 6110 ) ;国家杰出青年科学基金 (No .2 992 5 616)及;江苏省自然科学基金 (No .BK9712 4)资助项目~~

摘　　要：Design and calculation of humid air turbine cycle need saturated humidity and e nthalpy of humid air at 423?K,5?MPa. However, the models proposed by p revious workers are available only up to 373?K,5?MPa. In this paper,a method based on Helgeson Model is proposed.The saturated composition o f N 2-H 2O system at 336.15-636.35?K,1.74-25.6?MP a and O 2-H 2O system at 373-533?K,0.99-5.77?MPa are predicte d. The deviations from the experimental data are less than 5%. The p redictions for humid air at 273-372?℃,0.1?MPa are comparable wi th the results using the Hyland and Wexler model. The saturated compositio n and enthalpy of humid air at 473-573?K,5-15?MPa,are alsoDesign and calculation of humid air turbine cycle need saturated humidity and e nthalpy of humid air at 423?K,5?MPa. However, the models proposed by p revious workers are available only up to 373?K,5?MPa. In this paper,a method based on Helgeson Model is proposed.The saturated composition o f N 2-H 2O system at 336.15-636.35?K,1.74-25.6?MP a and O 2-H 2O system at 373-533?K,0.99-5.77?MPa are predicte d. The deviations from the experimental data are less than 5%. The p redictions for humid air at 273-372?℃,0.1?MPa are comparable wi th the results using the Hyland and Wexler model. The saturated compositio n and enthalpy of humid air at 473-573?K,5-15?MPa,are also presented

关 键 词：饱和湿空气 预测 湿度 焓 溶解度 气液平衡 Helgeson模型 高温高压条件 

分 类 号：O642[理学—物理化学]