混合组分高压气体节流效应的理论及实验研究  

Theoretical and experimental investigations of the mixed gas throttling process

作　　者：赵霄[1] 孟文惠 宋鹏[2] 张建云[2] 于爱国[2] 张博[1] 

机构地区：[1]大连理工大学能源与动力学院,辽宁大连116024 [2]沈阳鼓风机集团股份有限公司,辽宁沈阳110869

出　　处：《节能》2017年第5期18-21,共4页Energy Conservation

摘　　要：气体流经控制阀门的过程被认为是经典节流过程,该过程没有能量的输入与输出,总焓不变同时熵增加,热力学不可逆。由于混合气体的回转温度与单一组分气体有很大区别,其节流特性往往更难描述,进行有效的理论和实验研究十分必要。文中分别针对简单组分氮气与氢气在大型压缩机回流循环节流过程中的应用,通过建立实际气体混合模型和节流实验台进行分析研究。Gas flow across a control valve is considered a classic'throttling'process that is defined by energy not being added. So the total enthalpy is kept constant and meanwhile entropy increases,which means that the process is thermodynamically irreversible. This paper analyzes the throttling process in large compressor cycling of mixed gas with simple components of Nitrogen and Hydrogen. The mixed real gas throttling process is then validated experimentally. The temperature change of the process measured experimentally is then compared with the results of our theoretical work.

关 键 词：焦耳-汤姆逊效应 混合气体 压缩机 

分 类 号：TK01[动力工程及工程热物理]