标准氢的黏度方程  

Viscosity equation for normal hydrogen

作　　者：吴江涛[1] 周永[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《化工学报》2011年第2期301-306,共6页CIESC Journal

基　　金：国家高技术研究发展计划项目(2009AA05Z107);国家自然科学基金项目(51076128)~~

摘　　要：在广泛搜集标准氢(25%仲氢)黏度实验数据的基础上,运用单纯形算法拟合了标准氢的黏度计算方程,方程计算值与实验数据的偏差一般在2.0%以内。方程的适用范围为温度100～500K,压力不超过200MPa的区域。方程的不确定度为2.0%。方程具有一定的外推性,可以用于标准氢三相点温度到100 K以及500～1000K,压力不超过500 MPa的区域;100K以下,除临界区和气相区,方程的不确定度为3.0%,500K以上不确定度为5.0%,可满足工程计算的要求。In this work,a new viscosity equation for the normal hydrogen（25% para-hydrogen） has been fitted based on an extensive selection of experimental data using simplex method.The deviations between the values calculated by the equation and the experimental data are generally less than 2.0%.The valid range of the equation is from 100 K to 500 K,with pressure up to 200 MPa.The uncertainty in viscosity of the equation is estimated to be 2.0%.In addition,the extrapolation behavior of the equation is reasonable,and the equation could be used from the triple point temperature to 100 K or from 500 K to 1000 K,with pressure up to 500 MPa.The uncertainty is estimated to be 3.0% below 100 K except for the gas phase and critical region,and 5.0% above 500 K.

关 键 词：氢 黏度 关联 

分 类 号：TK123[动力工程及工程热物理—工程热物理] O551.3[动力工程及工程热物理—热能工程]