Results 101 to 110 of about 709 (208)

Controlled Auto-Ignition (CAI) in Engine Combustion Prechamber [PDF]

Unscavenged prechamber ignition has recently been developed at LENI-EPFL to reduce the emissions from cogeneration spark ignition gas engines (natural gas and biogas) within the Swiss Motor project supported by the Federal Office of Energy.
Roubaud, Anne, Favrat, Daniel
core  

Development of a Refined Model for a Rapid Compression and Expansion Machine with Pre-Chamber Applied to Study the Effects of Pre-Chamber Geometry and Hydrogen Enrichment on Combustion and Extinction of Methane/Air Flames

Energies
In this paper, experimental and numerical analyses are performed with a Rapid Compression and Expansion Machine (RCEM) equipped with a passive pre-chamber (PC) and fueled with premixed stoichiometric air/methane mixture to replicate engine-like ...
Fabio Bozza, Luigi Teodosio, Emanuele Ugliano, Ratnak Sok, Enrica Malfi, Jin Kusaka   +5 more
doaj   +1 more source

Design and Commissioning of a Novel Optical Prechamber for Combustion Studies in Medium-bore engine conditions [PDF]

The ongoing decarbonization of the transportation and energy sector has led to strong research and development efforts into cleaner and more efficient energy sources.
Kock, Robin
core  

MODELING OF THE INITIAL STAGE OF THE PRECHAMBER FILLING WHILE COPPER BUSBARES PRESSING ON THE CONTINUOUS EXTRUSION LINE "CONFORM-400" [PDF]

, 2017
В работе проведено моделирование в пакете DEFORM-3D начальной стадии заполнения форкамеры при прессовании медной шины на линии непрерывной экструзии «CONFORM-400».
Шимов, Г. В., Kovin, D. S., Фоминых, Р. В., Shimov, G. V., Ковин, Д. С., Bogatov, A. A., Fominykh, R. V., Богатов, А. А.   +7 more
core  

Development of Prechamber Enabled Mixing-Controlled Combustion Strategy for Ultra-Low Methane Emissions From Lean Burn Natural Gas Engines [PDF]

This numerical study explores the optimization of Prechamber Enabled Mixing-Controlled Combustion (PC-MCC) using natural gas in heavy-duty engines, aiming to enhance combustion efficiency to minimize methane slip and NOx emissions.
Nsaif, Osama, Dempsey, Adam
core   +1 more source

Prechamber autoignition in natural gas engines [PDF]

Unscavanged prechamber ignition has been developed at the Laboratory of Industrial Energy Systems to reduce the emissions from cogeneration spark ignition gas engines, operating with both natural gas and biogas.
Heyne, Stefan, Roubaud, Anne, Favrat, Daniel, Vos, Jan-Bernhard   +3 more
core  

A comparison between direct spark ignition and prechamber ignition in an internal combustion engine [PDF]

, 1993
We simulated the flow field and flame propagation near top dead center in a generic large-bore internal combustion engine using the COYOTE computer program, which is based on the full Navier-Stokes equations for a fluid mixture. The combustion chamber is
Cloutman, L. D.
core  

Experimental Study of Ignition Characteristics in Oblique-Injected Annular Combustors Using a Pre-Chamber Ignition System

Aerospace Research Communications
In this work, a pre-chamber ignition system is used to initiate the ignition in a premixed oblique-injected annular combustor. Although the introduction of the oblique-injecting burner in the gas turbine improved the gyratory flow motion and flow ...
Haroun Hassan, Haroun Hassan, Chenghao Qian, Hui Wang, Jinxiang Zhu, Haiwen Ge, Elsayed Barakat, Elsayed Barakat, Elsayed Barakat, Gaofeng Wang   +9 more
doaj   +1 more source

The role of shuntography in diagnosis of mechanic complications after implantation of ventriculoperitoneal shunts in patients with idiopathic normal pressure hydrocephalus: a retrospective clinical evaluation. [PDF]

Neuroradiology, 2022
Rot S, Goelz L, Arndt H, Gutowski P, Meier U, Lemcke J.   +5 more
europepmc   +1 more source

Numerical investigation on turbulent flame jet characteristics of ultra-lean H2/air ignited by pre-chamber enrichment strategy

Energy Conversion and Management: X
Pre-chamber enrichment for igniting ultra-lean premixed H2/air is an effective strategy for achieving ultra-low emission and improved fuel economy. This study employed a three-dimensional numerical simulation based on a constant volume combustion chamber
Wenchao Zhu, Xuanrui Zhang, Mingkun Zhang, Shuo Yin, Xianrong Wu, Wuqiang Long, Xiangyu Meng   +6 more
doaj   +1 more source