Results 21 to 30 of about 1,684,572 (226)

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

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

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

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

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

Energies, 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, Tommaso Capurso, Giovanni Filomeno, Marco Torresi, Giuseppe Pascazio   +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]

, 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, Commandre, Jean-Michel, Kajina, Wanida, Rousset, Patrick, Sornpitak, Thitima   +4 more
core   +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

A Review of the Numerical Investigations of Jet-In-Hot-Coflow Burner With Reactor-Based Models

Frontiers in Mechanical Engineering, 2020
Moderate or Intense Low-oxygen Dilution (MILD) combustion is considered as one of the most promising novel combustion technologies, as it ensures high efficiency and very low emissions (NOx and CO).
Zhiyi Li, Zhiyi Li, Alessandro Parente, Alessandro Parente   +3 more
doaj   +1 more source

The reactor-based perspective on finite-rate chemistry in turbulent reacting flows: A review from traditional to low-emission combustion

Applications in Energy and Combustion Science, 2023
In flames, turbulence can either limit or enhance combustion efficiency by means of strain and mixing. The interactions between turbulent motions and chemistry are crucial to the behaviour of combustion processes.
Arthur Péquin, Michael J. Evans, Alfonso Chinnici, Paul R. Medwell, Alessandro Parente   +4 more
doaj   +1 more source

Catalytic CVD Synthesis of Double and Triple-walled Carbon Nanotubes by the Control of the Catalyst Preparation [PDF]

, 2005
We report the influence of catalyst preparation conditions for the synthesis of carbon nanotubes (CNTs) by catalytic chemical vapour deposition (CCVD). Catalysts were prepared by the combustion route using either urea or citric acid as the fuel. We found
Flahaut, Emmanuel, Laurent, Christophe, Peigney, Alain   +2 more
core   +2 more sources