Results 61 to 70 of about 514,804 (300)
Advanced Energy and Sustainability Research, EarlyView.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Further experimental results on the structure and acoustics of turbulent jet flames [PDF]
, 1975 The structure of open turbulent jet flames is experimentally studied in the context of their noise emission characteristics. The differences between premixed and (co-flow) non-premixed flames are explored.
Kumar, R. N.
core
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study examines a dual‐fuel enhancement strategy that combines hydrogen enrichment with hybrid nanoparticle (HNP) doping. The aim is to improve combustion, performance, and emission characteristics of microbial oil biodiesel (MOB) in compression ignition engines.
D. Premkumar +3 more
wiley +1 more source
Non-Premixed Filtered Tabulated Chemistry: Filtered Flame Modeling of Diffusion Flames
Fuels, 2021 The flame front filtering is a well-known strategy in turbulent premixed combustion. An extension of this approach for the non-premixed combustion context has been proposed by means of directly filtering counterflow diffusion flamelets. Promising results
Pedro Javier Obando Vega +3 more
doaj +1 more source
Non-linear simulations of combustion instabilities with a quasi-1D Navier-Stokes code
, 2010 As lean premixed combustion systems are more susceptible to combustion instabilities than non-premixed systems, there is an increasing demand for improved numerical design tools that can predict the occurrence of combustion instabilities with high ...
Allam +29 more
core +1 more source
Effect of steam addition on the flow field and NOx emissions for Jet-A in an aircraft combustor [PDF]
, 2016 The steam injection technology for aircraft engines is gaining rising importance because of the strong limitations imposed by the legislation for NOx reduction in airports.
Hu, Chunbo +3 more
core +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.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 +3 more
wiley +1 more source
An optical investigation of dual fuel and RCCI pilot ignition in a medium speed engine
Fuel Communications, 2021 Driven by the Paris agreement and tightening IMO regulations, the marine sector is focusing on lowering engine emissions and moving to low-carbon fossil or renewable fuel such as methane.
Menno Merts +5 more
doaj +1 more source
Energy Science &Engineering, EarlyView.This study concluded that wider spray angles produce wall impingement and greater unburned hydrocarbons in methane‐diesel dual‐fuel engines, whereas 110° balances efficiency and emissions. ABSTRACT A diesel methane dual fuel engine appears as a potential means for lowering emissions while retaining useful thermal efficiency.
Abdullah Al Rifat +4 more
wiley +1 more source
Energies, 2015 In opposed-piston folded-cranktrain diesel engines, the relative movement rules of opposed-pistons, combustion chamber components and injector position are different from those of conventional diesel engines.
Fukang Ma +6 more
doaj +1 more source