Surface Tension of Binary Mixtures Including Polar Components Modeled by the Density Gradient Theory Combined with the PC-SAFT Equation of State

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F13%3A00393234" target="_blank" >RIV/61388998:_____/13:00393234 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10765-012-1207-z" target="_blank" >http://dx.doi.org/10.1007/s10765-012-1207-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10765-012-1207-z" target="_blank" >10.1007/s10765-012-1207-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface Tension of Binary Mixtures Including Polar Components Modeled by the Density Gradient Theory Combined with the PC-SAFT Equation of State

Popis výsledku v původním jazyce

In this study, the Cahn?Hilliard density gradient theory (GT) is used for predicting the surface tension of various binary mixtures and for testing the application of the GT for predictions of homogeneous nucleation. The GT was combined with two physically based equations of state (EoS), namely the perturbed-chain (PC) statistical associating fluid theory (SAFT) and its modification for polar substances PCP-SAFT. The GT applied to the planar phase interface was employed to predict the interfacial tension for various quadrupolar and dipolar substances and for binary mixtures including polar components. Besides the planar phase interface, the GT was also applied to the spherical phase interface simulating a critical cluster occurring in homogeneous nucleation of droplets. Application of the PCP-SAFT EoS provides a significant improvement compared to the PC-SAFT EoS, and it is clearly superior to the classical cubic Peng?Robinson EoS, which is still used for modeling droplet nucleation.

Název v anglickém jazyce

Surface Tension of Binary Mixtures Including Polar Components Modeled by the Density Gradient Theory Combined with the PC-SAFT Equation of State

Popis výsledku anglicky

In this study, the Cahn?Hilliard density gradient theory (GT) is used for predicting the surface tension of various binary mixtures and for testing the application of the GT for predictions of homogeneous nucleation. The GT was combined with two physically based equations of state (EoS), namely the perturbed-chain (PC) statistical associating fluid theory (SAFT) and its modification for polar substances PCP-SAFT. The GT applied to the planar phase interface was employed to predict the interfacial tension for various quadrupolar and dipolar substances and for binary mixtures including polar components. Besides the planar phase interface, the GT was also applied to the spherical phase interface simulating a critical cluster occurring in homogeneous nucleation of droplets. Application of the PCP-SAFT EoS provides a significant improvement compared to the PC-SAFT EoS, and it is clearly superior to the classical cubic Peng?Robinson EoS, which is still used for modeling droplet nucleation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Thermophysics

ISSN

0195-928X

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

792-812

Kód UT WoS článku

000320806100004

EID výsledku v databázi Scopus

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