Results 51 to 60 of about 321 (183)

On the Influence of Kinetic Uncertainties on the Accuracy of Numerical Modeling of an Industrial Flameless Furnace Fired With NH3/H2 Blends: A Numerical and Experimental Study

Frontiers in Energy Research, 2020
Ammonia/hydrogen-fueled combustion represents a very promising solution for the future energy scenario. This study aims to shed light and understand the behavior of ammonia/hydrogen blends under flameless conditions.
Marco Ferrarotti, Marco Ferrarotti, Marco Ferrarotti, Andrea Bertolino, Andrea Bertolino, Andrea Bertolino, Ruggero Amaduzzi, Ruggero Amaduzzi, Alessandro Parente, Alessandro Parente   +9 more
doaj   +1 more source

Oxide Scale Formation of Stainless Steels with Different Heating Methods – Effect of Hydrogen as Fuel

steel research international, Volume 95, Issue 1, January 2024.
Transition toward CO2‐free heating by replacing natural gas with H2 as the combustion gas, or by electrifying the reheating furnace, affects the oxide scale formation of stainless steels. The results indicate the potential reheating conditions to the use of H2 fuels with minor changes of oxide scale and the possibility to reduce oxidation by induction ...
Susanna Airaksinen, Juho Haapakangas, Aleksi Laukka, Eetu-Pekka Heikkinen, Timo Fabritius   +4 more
wiley   +1 more source

Numerical models for the phenomenological study of flameless combustion

Ingeniería e Investigación, 2009
Flameless combustion is a technique which offers environmental advantages such as lower than 100 ppm NOx and CO emis- sions due to below 200 K temperature gradients. Flameless combustion also supplies higher than 70% energy efficiency.
Bernardo Argemiro Herrera Múnera, Andrés Adolfo Amell Arrieta, Francisco Javier Cadavid Sierra   +2 more
doaj  

Development of Ammonia Combustion Technology for NOx Reduction

Energies
This study comprehensively reviewed the engineering theories and technologies required for using ammonia as a fuel. The slow reaction rate and high NOx emissions of ammonia remain challenging issues with existing combustion technologies. Accordingly, the
Hossein Ali Yousefi Rizi, Donghoon Shin
doaj   +1 more source

Method for Burning Super-Poor Fuel Mixtures in the Combustion Chamber of the Energy Microturbine by Means of theStreamer Discharge [PDF]

Problems of the Regional Energetics, 2018
The paper considers the problem of increasing fuel efficiency and reducing emissions of gas turbine power plants. The aim of the work is to develop a method for burning extra-lean fuel mixtures.
Grachev L.P., Bulat P.V., Esakov I.I., Bulat M.P., Volobuev I.A., Upyrev V.V.   +5 more
doaj   +1 more source

A dimensionless modeling framework for scaling flameless combustion furnaces: Integrating energy–exergy and flow-similarity analyses for predictive, low-emission, and scalable industrial design

Results in Engineering
Flameless combustion offers ultra-low emissions and high thermal uniformity, but scaling such systems from laboratory to industrial applications remains challenging due to complex interactions between flow, heat transfer, and chemical kinetics ...
Mohamad-Amin Zamani, Mohammad Hassan Saidi   +1 more
doaj   +1 more source

Joint RANS/LES Modeling of Flameless Combustion

Energy and Power Engineering, 2011
We present our timesaving joint RANS/LES approach (we originally developed it for numerical simulations of turbulent premixed combustion) to simulate flameless combustion with separate injection of gas fuel and strong exhaust gas recirculation. It is based on successive RANS/LES numerical modeling where part of the information (stationary average ...
Zimont, Vladimir L., Battaglia, Valerio
openaire   +3 more sources

Flow field and emission characterization of a novel enclosed jet-in-hot-coflow canonical burner

Applications in Energy and Combustion Science
The jet-in-hot-coflow is a canonical combustion setup, which has been used in several studies to study Flameless/MILD combustion and auto-ignition of fuels.
Thimo van den Berg, Rishikesh Sampat, Arvind Gangoli Rao   +2 more
doaj   +1 more source

Fundamental and Technical Challenges for a Compatible Design Scheme of Oxyfuel Combustion Technology

Engineering, 2015
Oxyfuel combustion with carbon capture and sequestration (CCS) is a carbon-reduction technology for use in large-scale coal-fired power plants. Significant progress has been achieved in the research and development of this technology during its scaling ...
Chuguang Zheng, Zhaohui Liu, Jun Xiang, Liqi Zhang, Shihong Zhang, Cong Luo, Yongchun Zhao   +6 more
doaj   +1 more source

A Comparative CFD Study on Simulating Flameless Oxy-Fuel Combustion in a Pilot-Scale Furnace

Journal of Combustion, 2016
The current study presents a method to model the flameless oxy-fuel system, with a comparative approach, as well as validation of the predictions. The validation has been done by comparing the predicted results with previously published experimental ...
Mersedeh Ghadamgahi, Patrik Ölund, Tomas Ekman, Nils Andersson, Pär Jönsson   +4 more
doaj   +1 more source