Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state
A new temperature-dependent correlation for the reduced influence parameter of the density gradient theory, when used with the Peng-Robinson equation of state, is proposed and compared with other correlations found in the literature. The proposed correlation is linear in its two fitting parameters a...
| Published in: | Case Studies in Thermal Engineering |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-08-01
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| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22004397 |
| _version_ | 1852737164417171456 |
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| author | Isidro Cachadiña Ariel Hernández Ángel Mulero |
| author_facet | Isidro Cachadiña Ariel Hernández Ángel Mulero |
| author_sort | Isidro Cachadiña |
| collection | DOAJ |
| container_title | Case Studies in Thermal Engineering |
| description | A new temperature-dependent correlation for the reduced influence parameter of the density gradient theory, when used with the Peng-Robinson equation of state, is proposed and compared with other correlations found in the literature. The proposed correlation is linear in its two fitting parameters and contains a universal exponent related to the one from the liquid-vapor phase transition universal scale law. The overall absolute deviation (OAAD) respect 1275 surface tension data for 39 esters is 1.37%. Only the proposal from Zuo and Stenby with OAAD = 1.29%, yields similar results with the same number of parameters.Fitting parameters for the new correlation proposed and those from Zuo and Stenby are given for the fluids considered in this work. |
| format | Article |
| id | doaj-art-cdf0a1af8daa4fc2bdb7a81e152f10f7 |
| institution | Directory of Open Access Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| spelling | doaj-art-cdf0a1af8daa4fc2bdb7a81e152f10f72025-08-19T21:06:14ZengElsevierCase Studies in Thermal Engineering2214-157X2022-08-013610219310.1016/j.csite.2022.102193Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of stateIsidro Cachadiña0Ariel Hernández1Ángel Mulero2Departamento de Física Aplicada, Universidad de Extremadura, Spain; Corresponding author.Departamento de Física Aplicada, Universidad de Extremadura, Spain; Departamento de Ingeniería Industrial, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Alonso de Ribera 2850, Concepción, ChileDepartamento de Física Aplicada, Universidad de Extremadura, Spain; Corresponding author.A new temperature-dependent correlation for the reduced influence parameter of the density gradient theory, when used with the Peng-Robinson equation of state, is proposed and compared with other correlations found in the literature. The proposed correlation is linear in its two fitting parameters and contains a universal exponent related to the one from the liquid-vapor phase transition universal scale law. The overall absolute deviation (OAAD) respect 1275 surface tension data for 39 esters is 1.37%. Only the proposal from Zuo and Stenby with OAAD = 1.29%, yields similar results with the same number of parameters.Fitting parameters for the new correlation proposed and those from Zuo and Stenby are given for the fluids considered in this work.http://www.sciencedirect.com/science/article/pii/S2214157X22004397Surface tensionPeng-Robinson equation of stateGradient density theoryInfluence parameterEsters |
| spellingShingle | Isidro Cachadiña Ariel Hernández Ángel Mulero Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state Surface tension Peng-Robinson equation of state Gradient density theory Influence parameter Esters |
| title | Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state |
| title_full | Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state |
| title_fullStr | Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state |
| title_full_unstemmed | Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state |
| title_short | Surface tension of esters. Temperature dependence of the influence parameter in density gradient theory with Peng-Robinson equation of state |
| title_sort | surface tension of esters temperature dependence of the influence parameter in density gradient theory with peng robinson equation of state |
| topic | Surface tension Peng-Robinson equation of state Gradient density theory Influence parameter Esters |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22004397 |
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