液体CO_2在毛细管中质量流量特性的实验  

Experimental Study on the Mass Flux Characteristic of Liquid Carbon Dioxide in a Capillary

作　　者：严嘉[1] 童明伟[1] 臧仁德[1] 

机构地区：[1]重庆大学动力工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2005年第2期47-50,共4页Journal of Chongqing University

基　　金：重庆市科技攻关项目(20025567)

摘　　要：针对液体CO2在压力突变中将会产生大量干冰而堵塞喷淋管道这一实际问题,提出了使用毛细管进行节流降压从而防止堵塞的新构想。实验对液体CO2在不同长度、不同内径、不同入口压力状态下的毛细管内的质量流量特性进行了测定,在实验基础上回归出了适用于本实验中的液体CO2在毛细管内的质量流量经验关联式,具有一定的工程指导意义。When liquid carbon dioxide goes through a adjutage, dry ice will lock it with the depressing pressure of liquid carbon dioxide. For this reason, the authors put forward a new design using a capillary to settle the actual question. They study the mass flux characteristic of liquid carbon dioxide in a capillary the length, inner diameter and input pressure of which are different. On this condition, it has been regressed experiential expression of liquid carbon dioxide's mass flux characteristic in a capillary, and it has a value of engineering field to some extent.

关 键 词：液体CO2 毛细管 质量流量 

分 类 号：TK124[动力工程及工程热物理—工程热物理]