Results 11 to 20 of about 931,175 (290)

Fire-Safe Hierarchical Solid Polymer Electrolytes Enabled by Dual-Functional Microcapsules for Lithium Metal Batteries. [PDF]

Adv Sci (Weinh)
Dual‐functional fire‐safe microcapsules are integrated into hierarchical solid polymer electrolytes to provide sequential protection against thermal abuse. The ammonium hydrogen phytate‐modified shell forms a protective char barrier, while the thermally triggered release of perfluoro(2‐methyl‐3‐pentanone) actively suppresses combustion, enabling safer ...
Huang Z, Gui J, Cao Q, Xiao Y, Hu H, Liang Y.   +5 more
europepmc   +2 more sources

A Comparison between Statistical Behaviours of Scalar Dissipation Rate between Homogeneous MILD Combustion and Premixed Turbulent Flames

Energies, 2022
Three-dimensional Direct Numerical Simulations (DNS) data has been utilised to analyse statistical behaviours of the scalar dissipation rate (SDR) and its transport for homogeneous methane-air mixture turbulent Moderate or Intense Low oxygen Dilution ...
Frederick W. Young, Hazem S. A. M. Awad, Khalil Abo-Amsha, Umair Ahmed, Nilanjan Chakraborty   +4 more
doaj   +1 more source

Role of radicals on MILD combustion inception [PDF]

, 2019
The criterion used to define MILD combustion in non-premixed condition is analysed using Direct Numerical Simulation (DNS) of MILD combustion of methane-diluted air established with internal exhaust gas recirculation.
Swaminathan, N, Doan, NAK, ,
core   +4 more sources

Numerical study of NH3/CH4 MILD combustion with conjugate heat transfer model in a down-fired lab-scale furnace

Applications in Energy and Combustion Science, 2023
Ammonia (NH3) is a promising carbon-free fuel but suffers from low flame stability and high NO emission. Moderate or intense low-oxygen dilution (MILD) combustion has been indicated to be a feasible technology for resolving these drawbacks of NH3 during ...
Mengqian Xie, Yaojie Tu, Qingguo Peng
doaj   +1 more source

Comparison of the Reactive Scalar Gradient Evolution between Homogeneous MILD Combustion and Premixed Turbulent Flames

Energies, 2021
Moderate or intense low-oxygen dilution (MILD) combustion is a novel combustion technique that can simultaneously improve thermal efficiency and reduce emissions.
Hazem S.A.M. Awad, Khalil Abo-Amsha, Umair Ahmed, Nilanjan Chakraborty   +3 more
doaj   +1 more source

Experimental Characterization of a Novel Foam Burner Design for the Low-Excess-Enthalpy Combustion of Very Lean Syngas Mixtures

Energies, 2023
In the present work, a novel foam burner design is proposed and experimentally evaluated for operation with highly diluted syngas mixtures. The lab-scale burner consists of a purpose-built, square-shaped, high-temperature-grade stainless steel tubular ...
Kyriakos Fotiadis, Akrivi Asimakopoulou, Penelope Baltzopoulou, Georgia Kastrinaki, Dimitrios Koutsonikolas, George Karagiannakis, George Skevis, Jana Richter, Fabian Mauss   +8 more
doaj   +1 more source

NOx Formation in MILD Combustion: Potential and Limitations of Existing Approaches in CFD

Frontiers in Mechanical Engineering, 2020
Emissions of nitrogen oxides (NOx) from combustion systems remain a lingering environmental issue, being these species either greenhouse gases or acid rain precursors.
Salvatore Iavarone, Alessandro Parente
doaj   +1 more source

Numerical Study of Critical Recirculation Ratio for Achieving Unconditional MILD Combustion

TecnoLógicas, 2023
Moderate or Intense Low Oxygen Dilution (MILD) combustion is a regime in which fuels burn in a distributed reaction zone generating ultra-low emissions and no visible flame front.
Luis Fernando Cardona Sepúlveda, Daniel Sanín-Villa   +1 more
doaj   +1 more source

Computational Investigation of Burner Blockage Ratio Effects on Combustion Mode in Stagnation-point Reverse-flow (SPRF) Combustors [PDF]

Journal of Applied Fluid Mechanics
Sustainable combustion technologies are essential for reducing carbon footprints and harmful emissions. The stagnation-point reverse-flow (SPRF) combustor is a promising configuration for achieving ultra-low emissions through mild combustion enabled by ...
D. Benmenine, Y. Bakache, A. Bentebbiche, A. Abdulnaim, A. Mahgoub, M. Elmously   +5 more
doaj   +1 more source

Increased heat transfer to sustain flameless combustion under elevated pressure conditions – a numerical study

Engineering Applications of Computational Fluid Mechanics, 2019
Sustaining flameless combustion under elevated pressure conditions remains a challenge that hinders its application in gas turbines. Previous attempts succeeded to sustain flameless operation up to 5 atm.
Hesham M. Khalil, Yehia A. Eldrainy, Walid A. Abdelghaffar, Adel A. Abdel-Rahman   +3 more
doaj   +1 more source