New Formulation for the Viscosity of n-Butane

IF 4.4 2区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY Journal of Physical and Chemical Reference Data Pub Date : 2018-03-12 DOI:10.1063/1.5020802
S. Herrmann, E. Vogel
{"title":"New Formulation for the Viscosity of n-Butane","authors":"S. Herrmann, E. Vogel","doi":"10.1063/1.5020802","DOIUrl":null,"url":null,"abstract":"A new viscosity formulation for n-butane, based on the residual quantity concept, uses the reference equation of state by Bucker and Wagner [J. Phys. Chem. Ref. Data 35, 929 (2006)] and is valid in the fluid region from the triple point to 650 K and to 100 MPa. The contributions for the zero-density viscosity and for the initial-density dependence were separately developed, whereas those for the critical enhancement and for the higher-density terms were pretreated. All contributions were given as a function of the reciprocal reduced temperature τ, while the last two contributions were correlated as a function of τ and of the reduced density δ. The different contributions were based on specific primary data sets, whose evaluation and choice were discussed in detail. The final formulation incorporates 13 coefficients derived employing a state-of-the-art linear optimization algorithm. The viscosity at low pressures p ≤ 0.2 MPa is described with an expanded uncertainty of 0.5% (coverage factor k = 2) for temp...","PeriodicalId":16783,"journal":{"name":"Journal of Physical and Chemical Reference Data","volume":"47 1","pages":"013104"},"PeriodicalIF":4.4000,"publicationDate":"2018-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.5020802","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physical and Chemical Reference Data","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1063/1.5020802","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 12

Abstract

A new viscosity formulation for n-butane, based on the residual quantity concept, uses the reference equation of state by Bucker and Wagner [J. Phys. Chem. Ref. Data 35, 929 (2006)] and is valid in the fluid region from the triple point to 650 K and to 100 MPa. The contributions for the zero-density viscosity and for the initial-density dependence were separately developed, whereas those for the critical enhancement and for the higher-density terms were pretreated. All contributions were given as a function of the reciprocal reduced temperature τ, while the last two contributions were correlated as a function of τ and of the reduced density δ. The different contributions were based on specific primary data sets, whose evaluation and choice were discussed in detail. The final formulation incorporates 13 coefficients derived employing a state-of-the-art linear optimization algorithm. The viscosity at low pressures p ≤ 0.2 MPa is described with an expanded uncertainty of 0.5% (coverage factor k = 2) for temp...
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
正丁烷粘度的新配方
基于残余量的概念,利用Bucker和Wagner的参考状态方程,提出了一种新的正丁烷粘度公式[J]。理论物理。化学。参考资料35,929(2006)],在三相点至650 K和100 MPa的流体区域有效。对零密度粘度和初始密度依赖性的贡献分别进行了开发,而对临界增强和高密度项的贡献进行了预处理。所有贡献都以还原温度τ的倒数函数给出,而最后两个贡献则以τ和还原密度δ的函数相关。不同的贡献基于特定的原始数据集,并对其评估和选择进行了详细讨论。最终公式包含13个系数,采用最先进的线性优化算法。在p≤0.2 MPa的低压下,粘度的扩展不确定度为0.5%(覆盖系数k = 2)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
6.90
自引率
11.60%
发文量
14
审稿时长
>12 weeks
期刊介绍: The Journal of Physical and Chemical Reference Data (JPCRD) is published by AIP Publishing for the U.S. Department of Commerce National Institute of Standards and Technology (NIST). The journal provides critically evaluated physical and chemical property data, fully documented as to the original sources and the criteria used for evaluation, preferably with uncertainty analysis. Critical reviews may also be included if they document a reference database, review the data situation in a field, review reference-quality measurement techniques, or review data evaluation methods.
期刊最新文献
Critical Evaluation and Calorimetric Study of the Thermodynamic Properties of Na2CrO4, K2CrO4, Na2MoO4, K2MoO4, Na2WO4, and K2WO4 Critical Evaluation of the Thermodynamic Properties of Na2Cr2O7, K2Cr2O7, Na2Mo2O7, K2Mo2O7, Na2W2O7, and K2W2O7 Evaluation of Physicochemical Property Data in the ECHA Database IUPAC-NIST Solubility Data Series. 105. Solubility of Solid Alkanoic Acids, Alkenoic Acids, Alkanedioic Acids, and Alkenedioic Acids Dissolved in Neat Organic Solvents, Organic Solvent Mixtures, and Aqueous–Organic Solvent Mixtures. III. Alkanedioic Acids and Alkenedioic Acids Ab Initio Calculation of Fluid Properties for Precision Metrology
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1