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This Special Issue on "New Trends on the Combustion Processes in Spark Ignition Engines" contains nine papers on new developments on Internal Combustion (IC) engines aiming to enhance their efficiency, leading to the reduction of fossil CO2 and other gaseous pollutants. It is divided into two parts. In the initial part, the focus in on fuels, with four papers discussing the use of biofuels and other alternative fuels that can be used in different types of IC Engines. Additionally, conventional fuels are tested in order to evaluate their optimal use in new downsizing high-boost engines. A revision paper on alternative fuels is also included. The second part involves the study and improvement of engine combustion diagnostics as well as the presentation of an alternative type of propulsion system.

iso-octane --- n-heptane --- toluene --- surrogate fuels --- burning velocity --- combustion bomb --- octane number --- knocking --- spark-ignition --- performance --- knock sensor --- fuel economy --- vehicle acceleration --- spark ignition --- calorimeter --- thermal energy --- spark plug --- natural gas engine --- Biodiesel --- diesel engines --- diethyl ether --- ethanol --- biofuels --- emissions --- fuels --- synthetic fuels --- internal combustion engine --- alternative fuels --- lipid bio-oils --- pyrogasoline --- exhaust emissions and spark-ignition engine --- combustion optimization --- cylinder-to-cylinder variation --- cycle-to-cycle variation --- fuel consumption --- 0D-1D engine modeling --- experiments --- axial engines --- wobble plate --- opposed piston engine --- uniflow scavenging --- variable compression ratio --- variable valve timing --- downsizing --- downspeeding --- multifuel potential --- Ion current --- cylinder pressure --- cooperative combustion diagnosis and control --- field-programmable gate array --- artificial neural network

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This volume provides unique views of combustion from many technical and international research perspectives.

hydrate ignition --- lean flames --- Atkinson cycle --- heavy metals --- iso-octane --- quantitative reaction pathway diagrams --- watery flames --- CeO2 doping --- hydrogen yield --- climate change --- mitigation --- computational fluid dynamics --- solid fuel --- cleaner combustion --- GRI-Mech 3.0 --- steam methane reformer --- emission characteristics --- flue gas mercury removal --- chemical analysis --- combustion --- Lewis number --- powder coke --- methane --- hydrate flame spectrum --- oxidizer ratio --- fluidized bed --- swirling burner --- CFD --- methane clathrate --- fuel rich/lean combustion --- general correlations --- control system efficiency --- MP-PIC method --- wall shear stress --- activated carbon sorbent --- density functional theory(DFT) calculations --- energy management --- self-similar spherical flame propagation --- bioethanol --- biofuel burner --- ultra-lean methane flame --- NO emissions --- tubular diffusion flame --- flaring angle --- methane–air combustion --- methane/air --- low load --- short stroke engine --- porous plate reactor --- combustion adjustment --- ecological fuels --- field study --- air-pollution control --- methane hydrate --- gas hydrate --- battery recycling --- hydrate combustion --- oxy-fuel combustion --- high-pressure turbulent burning velocity --- tube surface temperature --- PIV --- cooking stove

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This Special Issue will highlight the latest advances in numerical modeling of combustion-related applications. With the recent advancements in computational capacities and the widespread use of simulations in engineering problems, numerical methods are becoming increasingly important to improve existing models and develop new models that can help researchers to better understand the underlying mechanisms of combustion, their interaction with other physical phenomena, such as turbulence, and their impacts on the performance of related applications at both fundamental and practical levels.

Technology: general issues --- History of engineering & technology --- gas fire suppression --- inert gas agents --- agent quantity --- discharge rate --- ventilation rate --- premixed combustion --- obstructed channels --- flame acceleration --- thermal expansion --- computational simulations --- machine learning --- soot concentration --- soot emissions --- artificial neural network --- estimator --- computational fluid dynamics --- combustion --- biogas --- hydrogen --- laminar flame speed --- correlation --- jet-and-recirculation stabilized combustion --- OH* measurements --- numerical CFD analysis --- RANS modeling --- detailed chemistry schemes --- heat-loss modeling --- low-calorific combustion --- syngas fuel --- micro-combustion --- syngas --- repetitive extinction and ignition (FREI) --- numerical simulations --- flame instabilities --- flame propagation --- closed spherical bomb --- incipient stage --- methane --- N2O --- flash boiling --- gasoline direct injection --- Spray G --- discrete droplet method --- fuel surrogates --- combustion process --- reactivity model --- synthetic jet fuels --- turbine engines --- two-stroke engine --- multiple injection --- emission --- numerical simulation --- computational fluid dynamic (CFD) --- natural gas --- laminar burning velocity (LBV) --- closed vessel combustion --- numerical study --- microcombustion --- complex geometry --- n/a

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• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue will highlight the latest advances in numerical modeling of combustion-related applications. With the recent advancements in computational capacities and the widespread use of simulations in engineering problems, numerical methods are becoming increasingly important to improve existing models and develop new models that can help researchers to better understand the underlying mechanisms of combustion, their interaction with other physical phenomena, such as turbulence, and their impacts on the performance of related applications at both fundamental and practical levels.

Technology: general issues --- History of engineering & technology --- gas fire suppression --- inert gas agents --- agent quantity --- discharge rate --- ventilation rate --- premixed combustion --- obstructed channels --- flame acceleration --- thermal expansion --- computational simulations --- machine learning --- soot concentration --- soot emissions --- artificial neural network --- estimator --- computational fluid dynamics --- combustion --- biogas --- hydrogen --- laminar flame speed --- correlation --- jet-and-recirculation stabilized combustion --- OH* measurements --- numerical CFD analysis --- RANS modeling --- detailed chemistry schemes --- heat-loss modeling --- low-calorific combustion --- syngas fuel --- micro-combustion --- syngas --- repetitive extinction and ignition (FREI) --- numerical simulations --- flame instabilities --- flame propagation --- closed spherical bomb --- incipient stage --- methane --- N2O --- flash boiling --- gasoline direct injection --- Spray G --- discrete droplet method --- fuel surrogates --- combustion process --- reactivity model --- synthetic jet fuels --- turbine engines --- two-stroke engine --- multiple injection --- emission --- numerical simulation --- computational fluid dynamic (CFD) --- natural gas --- laminar burning velocity (LBV) --- closed vessel combustion --- numerical study --- microcombustion --- complex geometry --- gas fire suppression --- inert gas agents --- agent quantity --- discharge rate --- ventilation rate --- premixed combustion --- obstructed channels --- flame acceleration --- thermal expansion --- computational simulations --- machine learning --- soot concentration --- soot emissions --- artificial neural network --- estimator --- computational fluid dynamics --- combustion --- biogas --- hydrogen --- laminar flame speed --- correlation --- jet-and-recirculation stabilized combustion --- OH* measurements --- numerical CFD analysis --- RANS modeling --- detailed chemistry schemes --- heat-loss modeling --- low-calorific combustion --- syngas fuel --- micro-combustion --- syngas --- repetitive extinction and ignition (FREI) --- numerical simulations --- flame instabilities --- flame propagation --- closed spherical bomb --- incipient stage --- methane --- N2O --- flash boiling --- gasoline direct injection --- Spray G --- discrete droplet method --- fuel surrogates --- combustion process --- reactivity model --- synthetic jet fuels --- turbine engines --- two-stroke engine --- multiple injection --- emission --- numerical simulation --- computational fluid dynamic (CFD) --- natural gas --- laminar burning velocity (LBV) --- closed vessel combustion --- numerical study --- microcombustion --- complex geometry