Gaseous PvTx measurements of HFO-1234yf+HFC-32 binary mixture by single-sinker magnetic suspension densimeter
Gaseous PvTx measurements of HFO-1234yf+HFC-32 binary mixture by single-sinker magnetic suspension densimeter
复制标题
使用单沉子磁悬浮密度计对 HFO-1234yf HFC-32 二元混合物进行气态 PvTx 测量
DOI：
10.1016/j.fluid.2017.12.037
复制
发表时间：
2018-03-25
影响因子：
2.6
通讯作者：
Liu, Ming-Hou
中科院分区：
文献类型：
--
作者：
Cai, Xu-Dong;Zhang, Nan;Liu, Ming-Hou
用磁悬浮密度计测量了HFO-1234 yf/HFC-32二元混合物在279.8 ~ 347.9K、0.10 ~ 2.66MPa、230 ~ 66.02kg·m ~（-3）、100 ~ 200 ℃、100且HFO-1234 yf的摩尔分数为0.062至0.610。温度、压力和摩尔分数的实验扩展不确定度（k = 2）估计分别为12 mK、1.4 kPa和0.0002。密度的相对扩展不确定度（k = 2）为0.029- 0.104%。根据实验数据，建立了HFO-1234 yf/HFC-32二元体系的截断维里状态方程。它再现了实验值的平均绝对偏差为0.10%和0.11%的压力和密度，分别。(C)2018 Elsevier B. V.版权所有。
The measurements of PvTx properties of HFO-1234yf/HFC-32 binary mixture in the vapor phase were carried out by single-sinker magnetic suspension densimeter in the range of temperatures from 279.8 to 347.9 K, pressures from 0.10 to 2.66 MPa, densities from 230 to 66.02 kg m(-3), and mole fractions of HFO-1234yf from 0.062 to 0.610. The experimental expanded uncertainty (k = 2) in temperature, pressure, and mole fraction are estimated to be 12 mK, 1.4 kPa, and 0.0002, respectively. The relative expanded uncertainty (k = 2) in density is 0.029-0.104%. On the basis of the experimental PvTx properties data, a truncated virial equation of state was developed for the binary HFO-1234yf/HFC-32 system. It reproduces the experimental values with average absolute deviations of 0.10% and 0.11% for pressure and density, respectively. (C) 2018 Elsevier B.V. All rights reserved.