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Alternative synthetic fuels can be produced by renewable energy sources and represent a potential route for solving long-term energy storage. Among them, oxygenated fuels have the advantage of significantly reducing pollutant emissions and…

Chemical Physics · Physics 2022-04-25 Robert Schmitz , Federica Ferraro , Mariano Sirignano , Christian Hasse

Computational fluid dynamics (CFD) simulations of a single-cylinder gasoline compression ignition engine are performed to investigate the impact of gasoline-ethanol blending on autoignition, nitrogen oxide (NOx), and soot emissions under…

The Method of Moments (MOM) has largely been applied to investigate sooting laminar and turbulent flames. However, the classical MOM is not able to characterize a continuous particle size distribution (PSD). Without access to information on…

Fluid Dynamics · Physics 2022-10-20 Federica Ferraro , Sandro Gierth , Steffen Salenbauch , Wang Han , Christian Hasse

This work presents a numerical investigation of soot formation in the Cambridge lab-scale gas turbine combustor. Large-eddy simulations (LES) of a swirl-stabilized ethylene flame are performed using the flamelet generated manifold method…

Fluid Dynamics · Physics 2026-02-27 Leonardo Pachano , Daniel Mira , Abhijit Kalbhor , Jeroen van Oijen

In the present study, soot formation in the turbulent lifted diffusion flame, consisting of ethylene-air is numerically investigated using three different soot modeling approaches and is comprehensively reported. For turbulence-chemistry…

Fluid Dynamics · Physics 2021-03-03 Rohit Saini , Ashoke De

A numerical study of the effects of air dilution on soot formation and particle dynamics in a lab-scale rich-quench-lean (RQL) combustor is presented using large-eddy simulations (LES) with tabulated chemistry. The modelling approach…

Fluid Dynamics · Physics 2024-07-24 Leonardo Pachano , Abhijit Kalbhor , Daniel Mira , Jeroen van Oijen

The interaction between hydrogen atoms and carbon nanoparticles is a fundamental process governing the properties of carbonaceous materials in environments ranging from combustion systems to the interstellar medium. This study investigates…

The present work is aimed at examining the ability of different models in predicting soot formation in Delft flame III, which is a non-premixed pilot stabilized natural gas flame. The turbulence-chemistry interactions are modeled using a…

Fluid Dynamics · Physics 2021-02-23 B. Manedhar Reddy , Ashoke De , Rakesh Yadav

Soot formation in Delft flame III, a pilot stabilized turbulent diffusion flame burning natural gas/air, is investigated using ANSYS FLUENT by considering two different approaches for soot inception. In the first approach soot inception is…

Fluid Dynamics · Physics 2021-02-23 Manedhar Reddy B , Ashoke De , Rakesh Yadav

We used several data sets from the Plateau de Bure Interferometer to map the dimethyl ether emission in Orion-KL with different arcsec spatial resolutions and different energy levels to compare with our previous methyl formate maps. Our…

Astrophysics of Galaxies · Physics 2015-06-12 N. Brouillet , D. Despois , A. Baudry , T. -C. Peng , C. Favre , A. Wootten , A. J. Remijan , T. L. Wilson , F. Combes , G. Wlodarczak

This work describes the ethanol oxidation reaction (EOR) in alkaline medium using low-palladium nanoparticle electrocatalysts modified by Fe3O4 nano-octahedra and SnO2 nanorods. Operation studies on an alkaline direct ethanol fuel cell…

Soot nucleation is one of the most complex and debated steps of the soot formation process in combustion. In this work, we used scanning tunneling microscopy (STM) and spectroscopy (STS) to probe morphological and electronic properties of…

Numerical modeling of turbulent spray combustion provides a promising tool for advanced engine design. In spray flames, the droplet evaporation not only reduces the ambient gas temperature, but also influences flame structure by generating…

Fluid Dynamics · Physics 2025-07-03 Dong Wang , Min Zhang , Ruixin Yang , Zhi X. Chen

Numerical calculations of the effect of organophosphorous inhibitor (CF3CH2O)3P and its mixtures with carbon dioxide on propane flames are carried out using the three dimensional Reynolds-averaged Navier-Stokes (RANS) equations in the low…

Chemical Physics · Physics 2008-01-16 G. M. Makhviladze , S. E. Yakush , A. P. Zykov

Tropospheric ozone (O3) is a greenhouse gas which can absorb heat and make the weather even hotter during extreme heatwaves. Besides, it is an influential ground-level air pollutant which can severely damage the environment. Thus evaluating…

Atmospheric and Oceanic Physics · Physics 2021-05-06 Yu-Wen Chen , Sourav Medya , Yi-Chun Chen

Understanding and designing inertial confinement fusion (ICF) implosions through radiation-hydrodynamics simulations rely on the accurate knowledge of the equation of state (EOS) of the deuterium and tritium fuels. To minimize the drive…

Materials Science · Physics 2015-05-30 S. X. Hu , B. Militzer , V. N. Goncharov , S. Skupsky

In this work we studied the influence of particle size and agglomeration in the performance of solid oxide fuel cell cathodes made with nanoparticles of La0.8Sr0.2MnO3. We followed two synthesis routes based on the Liquid Mix method. In…

Materials Science · Physics 2018-07-12 Hernán Martinelli , Diego G. Lamas , Ana G. Leyva , Joaquín Sacanell

Incipient soot particles obtained from a series of reactive molecular dynamics simulations were studied to understand the evolution of physical, chemical, and morphological properties of incipient soot. Reactive molecular dynamics…

Atomic and Molecular Clusters · Physics 2024-10-24 Khaled Mosharraf Mukut , Anindya Ganguly , Eirini Goudeli , Georgios A. Kelesidis , Somesh P. Roy

In this study Fe2O3/Co3O4 nanocomposites were synthesized by using a simple hydrothermal route. The X-ray diffraction analysis results showed that synthesized powders were pure, and nanocrystalline in nature. Moreover, Scanning electron…

Chemical Physics · Physics 2016-09-21 Ali Mirzaei , Sunghoon Park , Gun-Joo Sun , Hyejoon Kheel , Sangmin Lee , Chongmu lee

The atomic and molecular compounds of cometary ices serve as valuable knowledge into the chemical and physical properties of the outer solar nebula, where comets are formed. From the cometary atmospheres, the atoms and gas-phase molecules…

Earth and Planetary Astrophysics · Physics 2024-12-03 Arijit Manna , Sabyasachi Pal , Sekhar Sinha , Sushanta Kumar Mondal
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