Results 71 to 80 of about 1,089,540 (201)

Engineering Phosphorus‐Modified Flame‐Retardant Thermoplastic Polyurethane via Reactive Melt Processing

open access: yesJournal of Polymer Science, Volume 64, Issue 19, Page 4131-4156, 1 October 2026.
Phosphorus‐modified TPUs are prepared by one‐step, solvent‐free reactive melt processing using phosphate‐ or phosphonate‐containing diols and PEG or PPG soft segments. Fire behavior and mechanical response depend strongly on both chemistries. Peak heat release rate decreases by up to 54%, but reduced tensile strength and V‐2 dripping behavior reveal a ...
Léa Gratier   +4 more
wiley   +1 more source

The Importance of Thermodynamic Data for Pyrrole Pyrolysis and Combustion Chemistry

open access: yesChemPhysChem, 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   +3 more
wiley   +1 more source

Characterization of a 5-nozzle array using premix/micromix injection for hydrogen

open access: yesApplications in Energy and Combustion Science
Hydrogen is one of the most promising fuels to decarbonize energy systems since it has a high specific energy, a carbon-free combustion process, and may be produced sustainably through electrolysis.
Antoine Durocher   +8 more
doaj   +1 more source

A modeling study on the combustion characteristics of alcohol/diesel dual fuel counterflow flame

open access: yesApplications in Energy and Combustion Science
This study combines a 0D Well Stirred Reactor (WSR), 1D counterflow flame, experimental data, and a 1D gas dynamic model to create an integrated modeling tool to study the dual fuel combustion behavior in engine-relevant conditions, fueled with E85 and ...
Pourya Rahnama   +2 more
doaj   +1 more source

An Experimental Study on Flame Puffing of a Swirl Partially Premixed Combustion under Varying Mass Flow Rate of Primary Air

open access: yesEnergies, 2018
It is of practical significance to understand the flame puffing behavior under varying mass flow rate of primary air ṁpri. An experiment was conducted to study the impact of ṁpri on flame puffing in a swirl partially premixed combustor, the puffing ...
Zhongya Xi   +4 more
doaj   +1 more source

Synthesis of functionalized polyolefins in a new continuous bench‐scale reactor apparatus

open access: yesAIChE Journal, Volume 72, Issue 9, September 2026.
Abstract In‐reactor functionalized polyolefins (FPOs), produced by molecular catalysts, are a new class of polymer materials with applications ranging from high performance adhesives to bitumen compatibilization. In this work, we disclose a procedure for the synthesis of FPOs in a new Continuous Bench‐scale Reactor Apparatus (COBRA).
Miloud Bouyahyi   +7 more
wiley   +1 more source

Hydrogen‐Enriched Tri‐Fuel Combustion for Low‐Carbon Engines at Medium Engine Load: A Comprehensive CFD Analysis

open access: yesEnergy Science &Engineering, Volume 14, Issue 9, Page 4130-4151, September 2026.
CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam   +4 more
wiley   +1 more source

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

open access: yesEnergies, 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   +2 more
doaj   +1 more source

Effect of HBr on Explosion Limits of Stoichiometric Hydrogen‐oxygen Mixture

open access: yesInternational Journal of Chemical Kinetics, Volume 58, Issue 9, Page 646-657, September 2026.
ABSTRACT This work, based on numerical simulations, discusses the effect of HBr as an inhibitor on the explosion limit of stoichiometric hydrogen‐oxygen gas mixture in a closed spherical vessel. The numerical simulation solves the complete governing equations for mass, momentum, species and energy.
Chunkan Yu, Peter Glarborg
wiley   +1 more source

Experimental Study on Laminar Burning Velocity and Flame Instability of Liquefied Petroleum Gas/Dimethyl Ether Blended Gas: Effects of Equivalence Ratio and Blended Ratio

open access: yesSafety Science and Technology, Volume 1, Issue 3, September 2026.
This study reveals the regulatory effect of LPG addition on laminar burning velocity of DME/air mixtures, and elucidates the governing mechanisms of flame instability under varying initial conditions. ABSTRACT Liquefied petroleum gas/dimethyl ether (LPG/DME) blended gas is a promising clean alternative fuel, characterized by high efficiency and clean ...
Qi Zhang   +12 more
wiley   +1 more source

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