化工学报2024，Vol.75Issue(3)：782-788,7.DOI:10.11949/0438-1157.20231321
低温下高纯空气黏度实验研究
Experimental study on viscosity of high purity air at low temperatures
摘要
Abstract
The accurate thermophysical properties of the working fluid are the basis for industrial process calculations and equipment usage optimization.However,the lack of data on the viscosity of air below 190 K affects the engineering design and process optimization of industrial applications.In this work,the viscosity measurements of high purity air in gas,liquid,supercritical states were performed by using a low-temperature vibrating-wire viscometer at temperatures from 85 K to 190 K and pressures from 0.2 MPa to 5 MPa.The standard uncertainty of the viscosity measurements was estimated to be 2.64%over all the ranges of temperature and pressure.Measurement results can provide basic data for the optimization design of related technologies in industrial liquid air applications.关键词
振动弦/液态空气/热力学/黏度/测量Key words
vibrating-wire/liquid air/thermodynamics/viscosity/measurement分类
能源科技引用本文复制引用
周辛梓,李增辉,孟现阳,吴江涛..低温下高纯空气黏度实验研究[J].化工学报,2024,75(3):782-788,7.基金项目
国家自然科学基金项目(51976164) （51976164）
陕西省自然科学基础研究计划项目(2024JC-YBMS-257) （2024JC-YBMS-257）
