Results 11 to 20 of about 5,881,026 (232)

Numerical Investigation on the Performance of a 4-Stroke Engine with Different Passive Pre-Chamber Geometries Using a Detailed Chemistry Solver

open access: yesEnergies, 2022
Pre-chamber turbulent jet ignition represents one of the most promising techniques to improve spark ignition engines efficiency and reduce pollutant emissions.
Simone Bigalli   +6 more
doaj   +1 more source

Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine

open access: yesAdvances in Mechanical Engineering, 2021
Pre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine.
Wei Duan   +5 more
doaj   +1 more source

Experimental Study of Pre-evacuation Effect on Second throat Diffuser Starting Process [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2022
In the present study, the effect of pre- evacuation on starting process of a second throat exhaust diffuser has been investigated experimentally by examining a thrust optimized parabolic nozzle.
Nematollah Fouladi   +2 more
doaj   +1 more source

Lean combustion and emission performance of a gasoline direct injection engine with active pre-chamber

open access: yesAdvances in Mechanical Engineering, 2022
Pre-chamber jet ignition technology can effectively improve flame propagation speed and in-cylinder combustion rate, so it is conducive to the improvement of thermal efficiency and fuel economy.
Li Zhang   +5 more
doaj   +1 more source

A Community Inventory of Walker County

open access: yes, 2019
Report done by the Huntsville Chamber of Commerce on the population of Walker ...
Huntsville-Walker County Chamber of Commerce
core   +9 more sources

Analysis of Performance of Passive Pre-Chamber on a Lean-Burn Natural Gas Engine under Low Load

open access: yesJournal of Marine Science and Engineering, 2023
Stable ultra-lean combustion is an effective way for natural gas engines to reduce NOx emissions, but it also has higher requirements for ignition stability.
Changhao Lu   +5 more
doaj   +1 more source

Effect of Temperature Conditions on Flame Evolutions of Turbulent Jet Ignition

open access: yesEnergies, 2021
Turbulent jet ignition technology can significantly improve lean combustion stability and suppress engine knocking. However, the narrow jet channel between the pre-chamber and the main chamber leads to some difficulties in heat exchange, which ...
Jiaying Pan   +5 more
doaj   +1 more source

CFD Investigation of Methanol Combustion in Active and Passive Pre-Chamber Marine Engine Configurations

open access: yesEnergies
This study presents a 3D computational fluid dynamics (CFD) investigation of methane and methanol combustion in a medium-speed, large-bore marine spark-ignition engine equipped with a pre-chamber (PC) ignition system.
Marco Palomba   +2 more
doaj   +1 more source

Characteristics performance of newly developed parallel plate chamber in electron beams

open access: yesJournal of Medical Physics, 2023
Background: To investigate the dosimetric performance of newly developed parallel plate chamber in electron beams. Materials and Methods: Rosalina Instruments India Private Limited (Mumbai, Maharashtra, India) has designed and fabricated PRATT2 parallel ...
Sathiyan Saminathan   +4 more
doaj   +1 more source

THE PRE-TRIAL CHAMBER JUDGE [PDF]

open access: yesChallenges of the Knowledge Society, 2014
The importance of this work lies in important changes in the new Code of Criminal Procedure, amendments justified by the new realities of a democratic society in which criminal procedural rules must be adapted according to the daily realities in the ...
Edgar Laurenţiu DUMBRAVĂ
doaj   +2 more sources

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