Results 11 to 20 of about 345,672 (330)

Combustion and Emissions Performance of High-Compression-Ratio Methanol Pre-Chamber Engines: Effect of Pre-Chamber Jet Hole Configurations

Energy
Xiaoxiao Jiang, Fangxi Xie, Hong Chen, Jingxun Yang, Jiakun Du, Wenxi Zhao   +5 more
openaire   +2 more sources

Optimization of Pre-Chamber Geometry and Operating Parameters in a Turbulent Jet Ignition Engine

Energies, 2022
A turbulent jet ignition engine enables operation with lean mixtures, decreasing nitrogen oxide (NOX) emissions up to 92%, while the engine efficiency can be increased compared to conventional spark-ignition engines.
Viktor Dilber, Momir Sjerić, Rudolf Tomić, Josip Krajnović, Sara Ugrinić, Darko Kozarac   +5 more
doaj   +1 more source

Pre-Chamber spark ignition: a reliability analysis of pre-chamber valve functions

Pamukkale University Journal of Engineering Sciences, 2023
Ön oda ateşlemesi, kıvılcım ateşlemeli motorların zayıf hava yakıtı ayarlarında çalışmasına izin verir. Yakıt verimliliğini artırır ve emisyonları azaltır. Bu çalışmada tek bir GE Jenbacher J620 doğal gaz motorunun güvenilirlik analizi yapılmıştır. Pakistan, Karaçi'de elektrik üretim sektöründe sürekli yükte çalışıyordu.
AKBAR, Faraz, ZAKİ, Sarah
openaire   +2 more sources

Effect of Pre-Chamber Enrichment on Lean Burn Pre-Chamber Spark Ignition Combustion Concept with a Narrow-Throat Geometry [PDF]

SAE Technical Paper Series, 2020
<div class="section abstract"><div class="htmlview paragraph">Pre-chamber spark ignition (PCSI) combustion is an emerging lean-burn combustion mode capable of extending the lean operation limit of an engine. The favorable characteristic of short combustion duration at the lean condition of PCSI results in high efficiencies compared to ...
Ponnya Hlaing, Manuel Echeverri Marquez, Eshan Singh, Fahad Almatrafi, Emre Cenker, Moez Ben Houidi, Bengt Johansson   +6 more
openaire   +2 more sources

CFD Optimization of the Pre-Chamber Geometry for a Gasoline Spark Ignition Engine

Frontiers in Mechanical Engineering, 2021
In the present paper, an efficient optimization method based on Bayesian updating strategy is developed for the design of a spark-ignition engine equipped with pre-chamber.
Haiwen Ge, Ahmad Hadi Bakir, Suren Yadav, Yunseon Kang, Siva Parameswaran, Peng Zhao   +5 more
doaj   +1 more source

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   +2 more sources

A Mapping Approach for Efficient CFD Simulation of Low-Speed Large-Bore Marine Engine with Pre-Chamber and Dual-Fuel Operation

Energies, 2021
A natural-gas-diesel dual-fuel marine engine with a pre-chamber is a promising solution for ocean transportation to meet the International Maritime Organization (IMO) emission regulations. This engine system employs a pre-chamber with direct injection of
Ying Ye, Zongyu Yue, Hu Wang, Haifeng Liu, Chaohui Wu, Mingfa Yao   +5 more
doaj   +1 more source

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

Applied Sciences, 2023
To evaluate the significance of the geometrical parameters of a passive pre-chamber on engine performance, this study investigated the design of a plug-and-play passive pre-chamber in a 15 L heavy-duty natural gas engine.
Wei Li, Junfang Ma, Tao Zhu, Haiqiao Wei, Jiaying Pan   +4 more
doaj   +1 more source

Numerical Investigation of the Pre-Chamber and Nozzle Design in the Gasoline Engine of an Agricultural Tractor

Energies, 2022
With the rapid development of agriculture in China today, the demand for agricultural machinery is rapidly increasing. A large amount of exhaust gas emissions poses a severe threat to the environment. To better promote engine fuel and air mixing, enhance
Bowen Zheng, Quan Zhou, Zhenghe Song, Enrong Mao, Zhenhao Luo, Xuedong Shao, Yuxi Liu, Wenjie Li   +7 more
doaj   +1 more source

The Influence of Charge Motion on Pre-Chamber and Main Chamber Combustion in a Highly Dilute Jet Ignition Engine

Frontiers in Mechanical Engineering, 2021
Though there are multiple viable powertrain options available for the automotive sector, those that contain internal combustion engines will continue to account for the majority of global sales for the next several decades.
Michael Bunce, Michael Bunce, Alasdair Cairns, Sai Krishna Pothuraju Subramanyam, Nathan Peters, Hugh Blaxill   +5 more
doaj   +1 more source