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گواهی نمایه سازی مقاله CFD Based Simulation of Hydrodynamic and Nucleation under Subsonic Conditions at the RESS

عنوان مقاله: CFD Based Simulation of Hydrodynamic and Nucleation under Subsonic Conditions at the RESS
شناسه (COI) مقاله: ICHEC07_298
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

j karimi sabet - Department of Chemical and Petroleum Engineering sharif university of Technology, Azadi Ave., Tehran
c ghotbi - Department of Chemical and Petroleum Engineering sharif university of Technology, Azadi Ave., Tehran
f farhadpour - Department of Chemical and Petroleum Engineering sharif university of Technology, Azadi Ave., Tehran

خلاصه مقاله:
Rapid Expansion of Supercritical Solution (RESS) is a promising technique for ultrafine particles formation The size distribution of particles produced by the RESS process is depen s on the operating conditions, as well as on the geometry of the nozzle. In order to have possibility for particle design, it is crucial to conduct more co prehensive studies involving the hydrodynamic of fluid flow and nucleation through the nozzle. In this study, the computational fluid dynamic CFD) modelling of the supercritical ca bon dioxide passing through a capillary nozzle were studied. The CFD simulation is focused on the expansion devise, including the inlet and inside of nozzle. The flow was governed by compressible Navier stokes equation with axisymetry and turbulence was modelled y using RNG k-E model. The supersaturation, nucleation r te of benzoic acid (as a mod l solute) in carbon dioxide was calculated. Also, sensitivity analyses of nozzle shape has been carried out, the re ults show tha on the flow filed and nucleation rate.theses parameter have significant effect

کلمات کلیدی:
cfd,ress,hydrodynamic,nozzle shape,supersaturation,nucleation rate

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-ICHEC07-ICHEC07_298.html