Results 51 to 60 of about 575 (165)

Mechanical and Physical Performance of Mortars Incorporating Crushed Hazelnut Shells as Partial Fine Aggregate Replacement

open access: yesAdvances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study investigates the mechanical and physical properties of mortars incorporating crushed hazelnut shell (HS) as a partial replacement for fine aggregates. Mortar mixtures were prepared with varying water‐to‐cement (w/c) ratios ranging from 0.35 to 0.50 and HS dosages of 2.5%, 5%, and 7.5% by weight, along with reference mixtures without HS.
Sergio J. Yanez   +7 more
wiley   +1 more source

Comparison of Presumed PDF Models of Turbulent Flames

open access: yesJournal of Combustion, 2012
Over the past years, the use of a presumed probability density function (PDF) for combustion progress variable or/and mixture fraction has been becoming more and more popular approach to average reaction rates in premixed and partially premixed turbulent
Chen Huang, Andrei N. Lipatnikov
doaj   +1 more source

The Influence of Hydrocarbon Additives on Laminar Burning Velocity and NOx Emissions in Hydrogen‐Air Combustion

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 25, Issue 4, December 2025.
ABSTRACT Hydrogen is a promising carbon‐free fuel but faces challenges due to combustion instability and nitrogen oxide (NOx${\rm NO}_x$) emissions during combustion. This study investigates the potential of blending hydrocarbons (methane, propane) or ammonia with hydrogen‐air flames in order to minimize these challenges.
Abdelkader Hemaizia   +4 more
wiley   +1 more source

Thermal Release Characteristics of Aeroengine Combustor Outlet Modulated by Gliding Arc Plasma

open access: yesAdvanced Science, Volume 12, Issue 41, November 6, 2025.
Gliding arc plasma‐assisted combustion significantly improves aeroengine combustor. Gliding arc plasma moves flames closer to the fuel source, enabling complete burning. This increases the combustion efficiency by 10.3% and raises outlet temperature by 141.6°C.
Lei Zhang   +5 more
wiley   +1 more source

Non‐Flammable Electrolytes for Safe Lithium‐, Sodium‐, and Potassium‐Ion Batteries

open access: yesElectron, Volume 3, Issue 4, November 2025.
This review highlighted recent progress in non‐flammable electrolytes for lithium‐, sodium‐, and potassium‐ion batteries (PIBs). It explores diverse flame‐retardant systems, including organophosphorus, halogenated, ionic liquid, aqueous, and solid‐state types, emphasizing their safety mechanisms, electrochemical performance, and compatibility.
Guifang Zeng   +7 more
wiley   +1 more source

Towards Sustainable Development Goals: Application of Hydrogen‐Enriched Mahua Biodiesel/Diesel Blend to Dual‐Fuel Diesel Engine

open access: yesGlobal Challenges, Volume 9, Issue 10, October 2025.
This study explores hydrogen enrichment in a dual‐fuel diesel engine fuelled with a Mahua biodiesel/diesel blend. At 10 L min−1 hydrogen flow, engine efficiency rises while fuel consumption and major emissions decline, though NOx increases. The findings highlight hydrogen's role in cleaner combustion and its contribution to advancing Sustainable ...
Anh Tuan Hoang   +11 more
wiley   +1 more source

Dynamics of Thermoacoustic Oscillations in Swirl Stabilized Combustor without and with Porous Inert Media

open access: yesJournal of Combustion, 2022
Lean premixed (LPM) combustion processes are of increased interest to the gas turbine industry due to their reduction in harmful emissions. These processes are susceptible to thermoacoustic instabilities, which are produced when energy added by an in ...
Cody Dowd, Joseph Meadows
doaj   +1 more source

Advancing Biocatalysis: Using Siloxanes to Solubilize and Stabilize Enzymes in Organic Solvents

open access: yesChemCatChem, Volume 17, Issue 17, September 5, 2025.
Biocatalysis offers an attractive route in the development of more sustainable approaches in silicon chemistry. Given the propensity for enzymes to operate optimally in an aqueous environment there are obvious challenges to incorporating biocatalysts in organic solvents.
Najibeh Alizadeh   +2 more
wiley   +1 more source

Fourier–physical space coherent structure in flame–vortex interactions relevant to flame–turbulence interactions using a new signal periodization procedure

open access: yesAIP Advances, 2021
The aim of the current study is to characterize key multidimensional relationships between coherent structures in physical vs Fourier/scale space representations of flame–turbulence interactions, as a basis for future analysis of the nonlinear couplings ...
Paulo L. K. Paes   +3 more
doaj   +1 more source

Performance‐Emission Optimization of a Diesel Engine Blended With Biodiesel and Pentanol

open access: yesEnergy Science &Engineering, Volume 13, Issue 8, Page 4190-4198, August 2025.
ABSTRACT The quest for novel alternative fuel blends is fueled by the urgent need to address the inadequacy of fossil fuels and the escalating environmental concerns. While previous studies have primarily explored base fuel and minimally diluted alcohol content since the late 20th century, a significant research gap exists in the comparative analysis ...
Geetesh Goga   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy