Results 51 to 60 of about 10,332,623 (155)

Optimized Design of a Swirler for a Combustion Chamber of Non-Premixed Flame Using Genetic Algorithms

Energies, 2020
Recirculation in a combustion chamber is required for stabilizing the flame and reducing pollutants. The swirlers can generate recirculation in a combustion chamber, inducing a swirling flow that breaks vorticity and improves the mixing of air and fuel ...
Daniel Alejandro Zavaleta-Luna, Marco Osvaldo Vigueras-Zúñiga, Agustín L. Herrera-May, Sergio Aurelio Zamora-Castro, María Elena Tejeda-del-Cueto   +4 more
doaj   +1 more source

The Importance of Thermodynamic Data for Pyrrole Pyrolysis and Combustion Chemistry

ChemPhysChem, Volume 27, Issue 18, 28 September 2026.
High level ab initio quantum chemical computations with ORCA 6.1.1 are done to derive enthalpy and entropy of formation at 298.15 K for 32 species that include both radicals and stable molecules relevant to the pyrolysis and combustion of pyrrole. The effects of thermochemical data on chemical model performance are assessed.
Atmadeep Bhattacharya, Kari Laasonen, Ossi Kaario, Alexander A. Konnov   +3 more
wiley   +1 more source

Joint stereo-PIV and NO-LIF in turbulent premixed hydrogen-air flames [PDF]

, 2009
A new technique to simultaneously and instantaneously resolve 3D velocity/2D strain rate fields and scalar/scalar gradient fields was developed and evaluated in this study.
Magand, Christelle C. G.
core   +5 more sources

Multi‐Phase Heterostructured NiMoN Nanoflower as Bifunctional Separator Coatings for High‐Performance Lithium–Sulfur Batteries

Battery Energy, Volume 5, Issue 5, September 2026.
NiMoN nanoflowers are introduced as multifunctional separator coatings for Li–S batteries. The dual‐metal nitride structure offers strong polysulfide adsorption, accelerated redox kinetics, and enhanced Li+ transport. Compared to NiN and Celgard, NiMoN achieves superior cycling stability, lower capacity fading, and excellent rate performance ...
Frederik Bettels, Tim Niclas Will, Zhihua Lin, Tao Liu, Yuping Liu, Fei Ding, Lin Zhang   +6 more
wiley   +1 more source

Thermal Degradation of PFAS in Different Scales: Measurement of Hydrogen Fluoride (HF)

Chemie Ingenieur Technik, Volume 98, Issue 9, Page 600-606, September 2026.
The communication article is about the challenges to balance a combustor in the case of fluorine when incinerating PFAS containing materials. Several analytical methods are compared: for continuous measurement, FTIR with TDLS. The detected fluorine species are further compared with results upon IC and pyrohydrolysis for discontinuous measurements in ...
Hans‐Joachim Gehrmann, Vanessa Nuredin, Krasimir Aleksandrov, Steffen Tonndorf, Manuela Hauser, Björn Meermann, Dieter Stapf   +6 more
wiley   +1 more source

Combustion Characteristics of Liquid Ammonia Direct Injection Under High-Pressure Conditions Using DNS

Energies
As a zero-carbon fuel, ammonia can be directly employed in its liquid form. However, its unique physical and chemical properties pose challenges to its application in engines. The direct injection of liquid ammonia is considered a promising technique for
Ziwei Huang, Haiou Wang, Qian Meng, Kun Luo, Jianren Fan   +4 more
doaj   +1 more source

A theory for steady and self-sustained premixed combustion waves

Cogent Engineering, 2016
Based on the compressible Navier–Stokes equations for reactive flow problems, an eigenvalue problem for the steady and self-sustained premixed combustion wave propagation is developed.
Weiming Liu
doaj   +1 more source

Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion

Case Studies in Thermal Engineering, 2019
Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is
Santiphong Klayborworn, Watit Pakdee
doaj   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, Volume 104, Issue 9, Page 4787-4808, September 2026.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Two-Dimensional Tomographic Simultaneous Multi-Species Visualization—Part I: Experimental Methodology and Application to Laminar and Turbulent Flames

Energies, 2020
In recent years, the tomographic visualization of laminar and turbulent flames has received much attention due to the possibility of observing combustion processes on-line and with high temporal resolution.
Thomas Häber, Henning Bockhorn, Rainer Suntz   +2 more
doaj   +1 more source