Results 91 to 100 of about 709 (208)

CFD Simulation of Pre-Chamber Spark-Ignition Engines—A Perspective Review

Energies
The growing demand to reduce emissions of pollutants and CO2 from internal combustion engines has led to a critical need for the development of ultra-lean burn engines that can maintain combustion stability while mitigating the risk of knock.
Soo-Jin Jeong
doaj   +1 more source

Study on combustion and emissions of methanol engines based on active pre-chamber jet ignition technology

Case Studies in Thermal Engineering
Against the backdrop of the ''dual carbon'' goals, this study addressed the challenges of narrow lean-burn limits and low thermal efficiency in conventional spark-ignition (SI) methanol engines by proposing the active pre-chamber jet ignition (APCH-JI ...
Yafeng Ren, Hong Jia, Jiaxin Qin, Qisheng Zhang, Jinyan Du   +4 more
doaj   +1 more source

Effect of Dimensions of Prechamber on Lean Burn Gas Engine.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1992
The effect of the dimensions of a prechamber was researched using a medium-sized single-cylinder engine. The air-fuel ratio, A/F, in the prechamber changed quickly, when only gas was supplied to the prechamber. The amount of gas supplied, ignition timing, and A/F in the main chamber were affected by A/F in the prechamber at ignition timing.
Nakazono, Tohru, Natsume, Yoshihiro
openaire   +3 more sources

NUMERICAL FLOW SIMULATION OF A NATURAL GAS ENGINE EQUIPPED WITH AN UNSCAVANGED AUTO-IGNITION PRECHAMBER [PDF]

This work is part of ongoing research on stationary natural gas engines equipped with unscavanged prechambers. Spark ignition inside the prechamber has been successfully proven with natural gas as well as biogas, reducing emissions while keeping good ...
Heyne, Stefan, Favrat, Daniel, Wunsch, Dirk, Vos, Jan-Bernhard   +3 more
core  

Engine characteristics of turbocharged natural gas engine with a scavenged prechamber [PDF]

, 2020
Diplomová práce se zabývá potenciálem provozu plynového motoru vybaveného zapalováním s vyplachovanou komůrkou s využitím režimu spalování velmi chudé směsi paliva.
Ondřej Pavlíček
core  

USULAN WAKTU PENGGANTIAN OPTIMUM KOMPONEN MESIN GAS ENGINE (PRECHAMBER GAS VALVE) DENGAN MODEL AGE-BASED REPLACEMENT DI PT. XYZ [PDF]

, 2016
PT. XYZ adalah perusahaan yang bergerak di bidang manufaktur perakitan sepeda motor, visinya menjadi perusahaan yang leading di bidang tersebut.
Taryana Taryana, Kusnadi Kusnadi
core   +2 more sources

Simulation analysis of a gas engine with various prechamber neck diameters in lean burning condition

Pojazdy Szynowe
The research presented in this paper focused on the simulation analysis of the pre-chamber neck diameter on in-cylinder processes in a large gas engine.
Filip Szwajca, Kinga Skobiej, Kamil Wittek   +2 more
doaj   +1 more source

Investigation of the Combustion Process of a Thermally Conditioned Active Prechamber in Monovalent Operation with Ammonia [PDF]

The debate over synthetic fuels is intense especially in sectors with a high energy demand like maritime [1, 2]. Hydrogen production from renewable sources is growing, but immediate measures for decarbonization are needed [3, 4].
Rothe, Paul, Mauss, Fabian, Bikas, Georgios   +2 more
core   +1 more source

Experimental Investigation on Knock Characteristics from Pre-Chamber Gas Engine Fueled by Hydrogen

Energies
Hydrogen-fueled engines require large values of the excess air ratio in order to achieve high thermal efficiency. A low value of this coefficient promotes knocking combustion.
Ireneusz Pielecha, Filip Szwajca, Kinga Skobiej   +2 more
doaj   +1 more source

A Novel Modeling Approach for Plastics Melting within a CFD-DEM Framework. [PDF]

Polymers (Basel), 2021
Celik A, Bonten C, Togni R, Kloss C, Goniva C.   +4 more
europepmc   +1 more source