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Large Eddy Simulations of a Low-Swirl Gaseous Partially Premixed Lifted Flame in Presence of Wall Heat Losses

open access: yesEnergies, 2022
The use of lifted flames presents some very promising advantages in terms of pollutant emissions and flame stability. The focus here is on a specific low-swirl injection system operated with methane and derived from an air-blast atomizer for aero-engine ...
Leonardo Langone   +2 more
doaj   +1 more source

Impact of Modern Vehicular Technologies and Emission Regulations on Improving Global Air Quality

open access: yesAtmosphere, 2023
Over the past few decades, criteria emissions such as carbon monoxide (CO), hydrocarbons (HCs), nitrogen oxides (NOx) and particulate matter (PM) from transportation have decreased significantly, thanks to stricter emission standards and the widespread ...
Sai Sudharshan Ravi   +2 more
doaj   +1 more source

A Hybrid Physics-Based and Stochastic Neural Network Model Structure for Diesel Engine Combustion Events

open access: yesVehicles, 2022
Estimation of combustion phasing and power production is essential to ensuring proper combustion and load control. However, archetypal control-oriented physics-based combustion models can become computationally expensive if highly accurate predictive ...
King Ankobea-Ansah, Carrie Michele Hall
doaj   +1 more source

EGR and Emulsified Fuel Combination Effects on the Combustion, Performance, and NOx Emissions in Marine Diesel Engines

open access: yesEnergies, 2022
Techniques such as exhaust gas recirculation (EGR) and water-in-fuel emulsions (WFEs) can significantly decrease NOx emissions in diesel engines. As a disadvantage of adopting EGR, the afterburning period lengthens owing to a shortage of oxygen, lowering
Elsayed Abdelhameed, Hiroshi Tashima
doaj   +1 more source

Combustion theory and modeling [PDF]

open access: yesProceedings of the Combustion Institute, 2005
In honor of the fiftieth anniversary of the Combustion Institute, we are asked to assess accomplishments of theory in combustion over the past fifty years and prospects for the future. The title of our article is chosen to emphasize that development of theory necessarily goes hand-in-hand with specification of a model.
Buckmaster, J.   +6 more
openaire   +3 more sources

Understanding the Compositional Effects of SAFs on Combustion Intermediates

open access: yesFrontiers in Energy Research, 2022
This work analyses, experimentally and numerically, the combustion behavior of three aviation fuels: a standard Jet A-1, a high aromatic content fuel, and an isoparaffinic Alcohol to Jet (ATJ) fuel.
M. Mehl, M. Pelucchi, P. Osswald
doaj   +1 more source

A New Simple Function for Combustion and Cyclic Variation Modeling in Supercharged Spark Ignition Engines

open access: yesEnergies, 2022
Research in the field of Internal Combustion (IC) engines focuses on the drastic reduction of both pollutant and greenhouse gas emissions. A promising alternative to gasoline and diesel fuel is represented by the use of gaseous fuels, above all green ...
Stefano Beccari, Emiliano Pipitone
doaj   +1 more source

Effect of Secondary Combustion on Thrust Regulation of Gas Generator Cycle Rocket Engine

open access: yesApplied Sciences, 2022
Thrust regulation is applied to maintain the performance of the liquid propellant rocket engine. The thrust level of a rocket engine can be readily controlled by adjusting the number of propellants introduced into the combustion chamber. In this study, a
Sohaib Khan   +4 more
doaj   +1 more source

Data-Driven Model for Real-Time Estimation of NOx in a Heavy-Duty Diesel Engine

open access: yesEnergies, 2023
The automotive sector is greatly contributing to pollutant emissions and recent regulations introduced the need for a major control of, and reduction of, internal combustion engine emissions.
Alessandro Falai, Daniela Anna Misul
doaj   +1 more source

CFD Study of Dual Fuel Combustion in a Research Diesel Engine Fueled by Hydrogen

open access: yesEnergies, 2022
Superior fuel economy, higher torque and durability have led to the diesel engine being widely used in a variety of fields of application, such as road transport, agricultural vehicles, earth moving machines and marine propulsion, as well as fixed ...
Maria Cristina Cameretti   +3 more
doaj   +1 more source

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