Results 71 to 80 of about 1,216,705 (204)

Modeling Homogeneous, Stratified, and Diffusion Combustion in Hydrogen SI Engines Using the Wiebe Approach

Energies
The use of hydrogen as a fuel for piston engines enables environmentally friendly and efficient operation. However, several challenges arise in the combustion process, limiting the development of hydrogen engines.
Oleksandr Osetrov, Rainer Haas
doaj   +1 more source

Scaling Up of a Lightweight Aggregates System Based on Recovery Raw Materials and With Fertilisation Capacity: From Laboratory Prototype to Semi‐Industrial Production

Applied Research, Volume 5, Issue 4, August 2026.
Improved glass meltability enabled semi‐industrial prototyping of a residue‐derived PK fertiliser. Firing produced mechanically stable micropellets and induced partial vitrification, pore‐network reorganisation, delayed P release, but restricted K availability; 6‐month field trials on turfgrass and Photinia supported agronomic feasibility.
Martina Napolitano, Giulia Malvolti, Fernanda Andreola, Isabella Lancellotti, Gianluca Malavasi, Michelina Catauro, Antonio D'Angelo, Luisa Barbieri   +7 more
wiley   +1 more source

Reaction-diffusion effects on species mixing rates in turbulent premixed methane-air combustion

, 2009
The scalar mixing time scale, a key quantity in many turbulent combustion models, is investigated for reactive scalars in premixed combustion. Direct numerical simulations of threedimensional, turbulent Bunsen flames with reduced methane-air chemistry ...
Grout, R.W., Sankaran, R., Richardson, E.S., Chen, J.H.   +3 more
core  

Predicted Thermoacoustic Flame Response at Megawatt Scale in a Near-Stoichiometric Atmospheric Industrial Furnace

Energies
While gas-turbine combustors have received much research attention, the forced response of large atmospheric industrial flames is much less studied. To improve the understanding of thermoacoustic instabilities in industrial combustion systems, the forced
Jesse Hofsteenge, Jim Kok
doaj   +1 more source

Effect of different flue gas recirculation rates on low‐NOx combustion characteristics: A numerical simulation based on the combustion process of a gas boiler

The Canadian Journal of Chemical Engineering, Volume 104, Issue 8, Page 3970-3983, August 2026.
Abstract NOx emissions from gas boilers severely impact the environment, and flue gas recirculation (FGR) technology can effectively reduce such emissions, yet the effects of different FGR rates on combustion performance and NOx formation remain unclear. This study thus used numerical simulation (via ANSYS Fluent, adopting the realizable k‐ε turbulence
Chao Min, Shuhao Xu, Yitao Yang, Peng Wang   +3 more
wiley   +1 more source

Large Eddy Simulations of gaseous flames in gas turbine combustion chambers [PDF]

, 2012
Recent developments in numerical schemes, turbulent combustion models and the regular increase of computing power allow Large Eddy Simulation (LES) to be applied to real industrial burners.
Staffelbach, Gabriel, Gicquel, Laurent Y.M., Poinsot, Thierry   +2 more
core   +1 more source

Effects of Partial Premixing and Coflow Temperature on Flame Stabilization of Lifted Jet Flames of Dimethyl Ether in a Vitiated Coflow Based on Stochastic Multiple Mapping Conditioning Approach

Fluids
The Reynolds-averaged Navier–Stokes (RANS)-based stochastic multiple mapping conditioning (MMC) approach has been used to study partially premixed jet flames of dimethyl ether (DME) introduced into a vitiated coflowing oxidizer stream.
Sanjeev Kumar Ghai, Rajat Gupta, Santanu De   +2 more
doaj   +1 more source

Waste‐to‐Energy Transformation: Performance and Emission Analysis of Diesel–Plastic–Vegetable Fuel Blends

Engineering Reports, Volume 8, Issue 8, August 2026.
DPV blends produced from waste plastic pyrolysis oil and vegetable oils deliver higher engine efficiency and lower emissions compared to diesel. The optimized B60‐PSO blend improves BTE by 12% and reduces BSFC, CO, NOx, and soot, supporting sustainable, circular‐energy solutions.
Jasgurpreet Singh Chohan, Praveen Oggu, Mahendrasinh R. Chauhan, Akanksha Mishra, Nagaraj Patil, Abhayveer Singh, Ripendeep Singh, Swetarani Biswal, Abhijit Bhowmik, Yalew Tamene   +9 more
wiley   +1 more source

Using LES to Study Reacting Flows and Instabilities in Annular Combustion Chambers [PDF]

, 2011
Great prominence is put on the design of aeronautical gas turbines due to increasingly stringent regulations and the need to tackle rising fuel prices.
Pierre Wolf, Wolf, Pierre, Staffelbach, Gabriel, Thierry Poinsot, Ramesh Balakrishnan, Balakrishnan, Ramesh, Gabriel Staffelbach, Gicquel, Laurent Y.M., Laurent Y. M. Gicquel, Poinsot, Thierry   +9 more
core   +1 more source

Control of the low-load region in partially premixed combustion

Journal of Physics: Conference Series, 2016
Partially premixed combustion (PPC) is a low temperature, direct-injection combustion concept that has shown to give promising emission levels and efficiencies over a wide operating range. In this concept, high EGR ratios, high octane-number fuels and early injection timings are used to slow down the auto-ignition reactions and to enhance the fuel and ...
Gabriel Ingesson, Lianhao Yin, Rolf Johansson, Per Tunestal   +3 more
openaire   +1 more source