Results 11 to 20 of about 68,749 (301)

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

open access: yesEnergies, 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   +4 more
doaj   +1 more source

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

open access: yesApplications 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

The role of chemistry in the oscillating combustion of hydrocarbons : an experimental and theoretical study [PDF]

open access: yes, 2020
The stable operation of low-temperature combustion processes is an open challenge, due to the presence of undesired deviations from steady-state conditions: among them, oscillatory behaviors have been raising significant interest.
Battin-Leclerc, Frédérique   +7 more
core   +2 more sources

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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

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

open access: yesFrontiers 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

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

open access: yesEnergies, 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   +8 more
doaj   +1 more source

Numerical Study of Critical Recirculation Ratio for Achieving Unconditional MILD Combustion

open access: yesTecnoLógicas, 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   +1 more
doaj   +1 more source

Recent Combustion Strategies in Gas Turbines for Propulsion and Power Generation toward a Zero-Emissions Future: Fuels, Burners, and Combustion Techniques

open access: yesEnergies, 2021
The effects of climate change and global warming are arising a new awareness on the impact of our daily life. Power generation for transportation and mobility as well as in industry is the main responsible for the greenhouse gas emissions.
Michele Stefanizzi   +4 more
doaj   +1 more source

Coupled effect of torrefaction and blending on chemical and energy properties for combustion of major open burned agriculture residues in Thailand [PDF]

open access: yes, 2018
Thailand is an agriculture-based country. It produces large amounts of open burned agricultural residues. A strategy to use them as biofuel all year round is to enhance their fuel properties by coupling blending and thermochemical pre-treatment.
Chen, Wei-Hsin   +4 more
core   +1 more source

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

open access: yesEngineering 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   +3 more
doaj   +1 more source

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