Vapor-Phase (p, ρ, T, x) Behavior of the (Hydrogen + Argon) System,Journal of Chemical & Engineering Data

当前位置： X-MOL 学术 › J. Chem. Eng. Data › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Vapor-Phase (p, ρ, T, x) Behavior of the (Hydrogen + Argon) System
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-06-26 , DOI: 10.1021/acs.jced.0c00355
Christian W. Scholz ₁ , Roland Span ₁

Affiliation

Accurate density measurements on three binary (hydrogen + argon) mixtures were carried out at temperatures between 273.15 and 323.15 K and at pressures up to 9 MPa, utilizing a two-sinker magnetic suspension densimeter. The measurements resulted in a total of 144 (p, ρ, T, x) data points. The gravimetrically prepared mixtures contain a hydrogen mole fraction of 0.06078, 0.29892, and 0.55073. When taking the measurement uncertainties in temperature, pressure, density, and composition into account, the combined expanded uncertainty (k = 2) was estimated to be less than or equal to 1.16 × 10^–3 ρ. Relative deviations of the measured densities from values calculated with the GERG-2008 equation of state were within 0.44% for the composition with a hydrogen mole fraction of 0.06078, up to 1.17% for the composition with a hydrogen mole fraction of 0.29892, and up to 1.01% for the composition with a hydrogen mole fraction of 0.55073.

中文翻译：

（氢+氩）系统的汽相（p，ρ，T，x）行为

利用二沉磁悬浮密度计，在273.15至323.15 K之间的温度和最高9 MPa的压力下，对三种二元（氢+氩）混合物进行了精确的密度测量。测量结果总共有144（p，ρ，T，x）个数据点。重量制备的混合物包含0.06078、0.29892和0.55073的氢摩尔分数。考虑到温度，压力，密度和成分的测量不确定度时，组合的扩展不确定度（k = 2）估计小于或等于1.16×10 ^–3ρ。对于具有0.06078的氢摩尔分数的组合物，测量的密度与通过GERG-2008状态方程计算的值的相对偏差在0.44％以内，对于具有0.29892的氢摩尔分数的组合物，高达1.17％该组合物的氢摩尔分数为0.55073，为1.01％。

更新日期：2020-07-09

点击分享查看原文

点击收藏

阅读更多本刊最新论文