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Simulation of supercritical diesel jets using the PC-SAFT EoS

C. Rodriguez, P. Koukouvinis, M. Gavaises
2019 Journal of Supercritical Fluids  
The thermodynamic properties are predicted using the Perturbed Chain Statistical Associating Fluid Theory (PC-SAFT) real-fluid equation of state (EoS).  ...  Finally, twodimensional simulations of planar jets of n-dodecane and a four component Diesel surrogate are included to demonstrate the capability of the developed methodology to predict supercritical Diesel  ...  and the PC-SAFT EoS.  ... 
doi:10.1016/j.supflu.2018.11.003 fatcat:iohuvqhdqza3rmulzvfshfr4la

Enhancing the predictive capabilities for high P/T fuel sprays; non-ideal thermodynamic modelling using PC-SAFT [article]

Phoevos Koukouvinis, Alvaro Vidal-Roncero, Carlos Rodriguez, Manolis Gavaises, Lyle Pickett
2020 arXiv   pre-print
At the same time, a more advanced model based on the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) is employed to create the thermodynamic table, as it is proven superior to the traditional  ...  While commonly in the literature transcritical mixing cases are approached using traditional cubic equation-of-state models, such models can prove insufficient in the accurate prediction of liquid density  ...  The primary author would also like to thank Sandia National Laboratories, the US Department of Energy (DoE) and the staff at Combustion Research Facility for hosting him.  ... 
arXiv:2011.09983v2 fatcat:x2cvaf5vfzgoboy7xtxhggpora

A tabulated real-fluid modeling approach applied to cryogenic LN2-H2 jets evaporation and mixing at transcritical regime

SAJAD JAFARI, Hesham GABALLA, Angela Di-Lella, Chaouki HABCHI, Jean-Charles De hemptinne
2021 International Conference on Liquid Atomization and Spray Systems (ICLASS)  
This modeling approach has been applied to the simulation of a classical cryogenic injection of liquid nitrogen (LN2) coaxially with warm hydrogen (H2) jet, in a transcritical regime using thermodynamic  ...  Accurate, robust, and fast fully compressible real-fluid simulation of fuel jets is today's one of the highly debated topics in various research laboratories and industries.  ...  In that study, the authors proposed a uniform tabulated thermodynamic approach based on NIST-database and VLE using PC-SAFT EoS for the simulation of the ECN spray A [10] .  ... 
doi:10.2218/iclass.2021.5988 fatcat:4s3wywesg5cevfyj6kqecjc7oq

Towards Understanding the Structure of Subcritical and Transcritical Liquid–Gas Interfaces Using a Tabulated Real Fluid Modeling Approach

Sajad Jafari, Hesham Gaballa, Chaouki Habchi, Jean-Charles de Hemptinne
2021 Energies  
One of the reasons for this is that the accurate, robust, and efficient simulation of fuel jets remains a challenge.  ...  The simulation of a classical cryogenic injection of liquid nitrogen coaxially with a hot hydrogen jet is performed using thermodynamic tables generated by two different equations of state: Peng–Robinson  ...  In that study, the authors proposed a uniform, tabulated thermodynamic approach based on the NIST-database and VLE using PC-SAFT EoS for simulation of the ECN spray A [45] .  ... 
doi:10.3390/en14185621 fatcat:52j2aqlvzjbnrbhmq2ueogrgju

Simulation of transient effects in a fuel injector nozzle using real-fluid thermodynamic closure

Konstantinos Kolovos, Phoevos Koukouvinis, Alvaro Vidal, Manolis Gavaises, Robert M. McDavid
2021 Applications in Energy and Combustion Science  
The first is based on tabulated data for a 4component Diesel fuel surrogate, derived from the Perturbed-Chain, Statistical Associating Fluid Theory (PC-SAFT) Equation of State (EoS), allowing for thermal  ...  The second thermodynamic closure is based on the widely used barotropic Equation of State (EoS) approximation between density and pressure and neglects viscous heating.  ...  Acknowledgements The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of the article: This project has received funding from the European  ... 
doi:10.1016/j.jaecs.2021.100037 fatcat:r7hxfbdkybgdre3nofohlxdddi

Supercritical and transcritical real-fluid mixing using the PC-SAFT EOS

Carlos Rodriguez, Alvaro Vidal, Phoevos Koukouvinis, Manolis Gavaises
2017 Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems   unpublished
By using the PC-SAFT EoS (Perturbed Chain Statistical Association Fluid Theory Equation of State) real fluids effects can be taken into account in a CFD simulation.  ...  A numerical framework has been developed to simulate the mixing of supercritical and transcritical fluids using anequation of state based on statistical associating fluid theory.  ...  PC-SAFT EoS In perturbation theory, the potential energy of the molecular fluid is described as the sum of the potential energy of the reference fluid and a perturbation.  ... 
doi:10.4995/ilass2017.2017.5000 fatcat:r7g23yizlzch5mac4iqscmwsim

Energieeffizienzsteigerung durch kaskadierte Organic Rankine Cycles und die Bestimmung thermodynamischer Stoffdaten [article]

Matthias Linnemann, Technische Universität Berlin, Technische Universität Berlin, Jadran Vrabec
2020
the Peng-Robinson and the PC-SAFT equations of state so that VLE data can be calculated over the entire range of interest.  ...  Anhand der experimentellen Werte wird die Peng-Robinson und die PC-SAFT Zustandsgleichung parametrisiert, wodurc [...]  ...  The authors gratefully thank family Willeke, Bergkamen for the appropriation of the test site.  ... 
doi:10.14279/depositonce-9842 fatcat:hxafzucggbbgxny4rhvatpm3ee

Non-invasive thermometry and wake mixture fraction determination of evaporating droplets at elevated pressures using laser spectroscopy

Andreas Preusche
2021
The signal separation is realized in the time domain using a time gated image intensifier. The results of this characterization show a significant non-linear influence of the emission.  ...  First, laser induced fluorescence and phosphorescence (LIFP) of acetone is used to noninvasively measure the average temperature of the acetone droplets during their fall.  ...  In the context of this work, the nonanalytical EOS perturbed chain -statistically associating fluid theory (PC-SAFT) [35] [36] [37] , Span and Wagner's EOS and the GERG-2008 EOS [52] are used, either  ... 
doi:10.26083/tuprints-00019515 fatcat:owivvsh66zaz7eol523glr2z3e