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caracas,
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Momentan, aici e ora 12:02 a.m.
S-a înregistrat pe august 29, 2018
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Freddy Luis F.
@freddyfigueira
1,3
1,3
100%
100%
caracas,
venezuela
100 %
Proiecte finalizate
100 %
Conform bugetului
100 %
La timp
Indisponibil
Rata de angajare repetată
MSc and BSc in Chemical Engineering
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Engineering
Research
Mathematics
Physics
•
Experiență
Professor
sept. 2005 - Prezent
As a full professor I have taught undergraduates courses in thermodynamics, numerical methods for engineers, chemical reactors design, and graduate courses on introduction to gas engineering. I have advised undergraduate thesis, internships, short research projects, master thesis, and specialization thesis.
I have developed research lines on thermodynamics, equations of state for pure fluids and multicomponent systems, process simulation and modeling, and molecular dynamics.
Invited Researcher
ian. 2013 - iul. 2013 (6 luni, 1 zi)
Invited Researcher at the Material Science and Engineering Department, College of Earth and Mineral Sciences, where I:
o Attended to the graduate course on “Computational Materials Science of Soft Materials”
o Was trained in the use of the Gaussian and Amber simulations software.
o Researched on molecular dynamic simulations of Deep Eutectic solvents (Ionic Liquids Analogues), specifically the study of mixtures of choline chloride / urea DES with water.
Invited Scholar
oct. 2007 - dec. 2007 (2 luni, 1 zi)
Member of the delegation of the Universidad Simón Bolívar (USB) visiting NTNU and Statoil facilities in Norway as part of the USB/NTNU/Statoil collaboration program in order to have a firsthand knowledge of the Norwegian gas and oil industry.
Educație
MSc. Chemical Engineering
(3 ani)
BSc. Chemical Engineering
(5 ani)
Calificări
Gas Conditioning and Processing - G-4
John M. Campbel -l PetroSkills
2007
Advanced Course on Thermodynamic Models: Fundamentals & Computational Aspects
DTU, Lyngby, Denmark
2008
Publicații
An energy-based cohesion function for cubic equations of state
Polish Journal Of Chemistry, Vol. 80 (2006) 81-97
A cohesion function is derived for cubic equations of state, based on the behaviour of the residual internal energy of pure fluids; it contains two fluid-specific constants and is therefore suitable for nonpolar and polar fluids. Comparison with similar functions proposed in the literature shows that the new function is generally better. A corresponding states generalization is presented using the acentric and critical compressibility factors.
Generalized parameters of the Stryjek–Vera and Gibbons–Laughton cohesion functions
Fluid Phase Equilibria, 259 (2007) 105-115
In this work, the parameters of the Stryjek–Vera and Gibbons–Laughton cohesion functions were determined for over 800 fluids by fitting vapor pressure data generated from the DIPPR database from the triple to the critical point. Parameter sets were obtained for use with the van der Waals, Redlich–Kwong and Peng–Robinson equations of state. Contrary to assertions in the literature, we showed that a generalized correlation of these parameters is possible.
Prediction of the thermodynamic properties of NH3/H2O using cubic EOS with the SOF cohesion function
Fluid Phase Equilibria, 303 (2011) 96-102.
The two-parameter SOF cohesion function and the cubic equations of state are shown to give accurate predictions of the VLE and enthalpies of NH3/H2O. Statistical analysis of the interaction parameters shows that their values (within the range of validity mentioned above) are effectively the same for both cohesion functions. At higher tempera- tures, however, extrapolation of the two cohesion functions gives different results, and correspondingly requires different interaction parameters.
Correlation and prediction of equilibria of CO2–aromatics and CO2–dichlorobenzoates binary mixtures
Fluid Phase Equilibria, 311 (2011) 45-53.
The capabilities and usefulness of several cubic equations of state as well as a molecular-based equation of state were explored. We show that these models can capture many important features of the complex phase behavior of highly asymmetric systems composed of supercritical CO2 and alkyl (nonfluorinated or semi-fluorinated) 2,5-dichlorobenzoates.
Generalized correlation of BIP in cubic equations of state for HC/CO2, HC/H2S and CO2/H2S systems
Chemical Engineering Transactions, 24 (2011) 589-594
We develop a predictive corresponding-states correlation for the binary interaction parameters of systems composed of hydrocarbons (HC), up to C10, with CO2 and H2S. Optimal kij were computed using the isofugacity method of Paunovic et al. Computations were made for the van der Waals, Redlich-Kwong and Peng-Robinson equations of state, with the cohesion functions of Soave, Gibbons and Laughton, Stryjek and Vera, Twu et al., and our own group.
Development and applications of a two-Parameter cohesion function for cubic equations of state
III Iberoamerican Conference on Supercritical Fluids Cartagena de Indias (Colombia, 2013)
The Stamateris–Olivera–Figueira (SOF) cohesion function is based on the behavior of the configurational internal energy, rather than on the repulsion-attraction interpretation of cubic equations of state.In this paper, we review the work done in development and implementation of the SOF function, and present some new applications for nonpolar and polar fluid mixtures.
Predicting the solubility of Hydrogen in PYGAS from Equations of State
Journal of Computational Methods in Science and Engineering, 14 (2014) 137-153
The objective of this contribution was to explore the effect of thermodynamic model selection on predicting the solubility of hydrogen in Pyrolysis Gasoline (PYGAS). Different combinations of cubic equations of state (EOS), cohesion functions and mixing rules were compared.
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