Results 41 to 50 of about 246 (136)

Numerical study of piston bowl geometries on PFI-HCCI engine performance

open access: yesJournal of Mechanical Engineering and Sciences, 2023
Homogeneous charge compression ignition (HCCI) is an advanced combustion strategy proposed to provide higher efficiency and lower emissions than conventional compression ignition.
Nik Muhammad Hafiz Nik Ab Rashid   +4 more
doaj   +1 more source

Reaction Mechanisms and HCCI Combustion Processes of Mixtures of n-Heptane and the Butanols

open access: yesFrontiers in Mechanical Engineering, 2015
A reduced primary reference fuel (PRF)-Alcohol-Di-tert-butyl Peroxide (DTBP) mechanism with 108 species and 435 reactions, including sub-mechanisms of PRF, methanol, ethanol, DTBP and the four butanol isomers, is proposed for homogeneous charge ...
Hu eWang   +5 more
doaj   +1 more source

Characteristics of Hydrogen‐Enriched Fuels in Spark and Compression Ignition Engines With Dual Injection System: A Bibliometric Study of Research Evolution

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Recent fuel economy and stringent emissions concerns have stimulated the use of hydrogen in internal combustion engines and to drive dual‐fuel benefits. This paper explicitly conducted a bibliometric study of scholarly articles on hydrogen enrichment of diverse fuels in compression and spark ignition (SI) engines with dual injection systems (DIS ...
Solomon O. Giwa   +2 more
wiley   +1 more source

Selective Catalytic Reduction Techniques for Postcombustion Control of Nitrogen Oxide Emissions From a Diesel Engine

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Air pollution effects of nitrogen oxide emissions from diesel engines have now become a global crisis as the emissions greatly endanger environmental and human existence. The detrimental effects as a result of nitrogen oxide emissions include climate change, ozone layer depletion, skin cancer, respiratory and cardiovascular illnesses, and mortalities ...
Brian O. Obita   +4 more
wiley   +1 more source

Effect of Engine Speeds and Dimethyl Ether on Methyl Decanoate HCCI Combustion and Emission Characteristics Based on Low-Speed Two-Stroke Diesel Engine

open access: yesPolish Maritime Research, 2020
The combustion and emission characteristics of homogeneous charge compression ignition (HCCI) fuelled by methyl decanoate (MD) with different engine speeds and dimethyl ether (DME) mixing ratios are investigated in this work.
Wang Shiye, Yao Li
doaj   +1 more source

Investigation on Influence of Acetylene Enrichment in Diesel Engines Operating With Microalgae‐Waste Plastic Oil‐Heptane Fuel Mixture

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 3107-3122, June 2025.
The graphical abstract depicts biodiesel production from algae and plastic waste via oil extraction, transesterification, and pyrolysis. These fuels were tested for diesel engine performance, improve combustion, and reduce emissions. ABSTRACT This study investigates the performance and emission characteristics of a diesel engine running on a blend of ...
Veeraraghavan Sakthimurugan   +5 more
wiley   +1 more source

A Comprehensive Numerical Study on Effects of Natural Gas Composition on the Operation of an HCCI Engine Une étude numérique complète sur les effets de la composition du gaz naturel carburant sur le réglage d’un moteur HCCI

open access: yesOil & Gas Science and Technology, 2011
Homogeneous Charge Compression Ignition (HCCI) engine is a promising idea to reduce fuel consumption and engine emissions. Natural Gas (NG), usually referred as clean fuel, is an appropriate choice for HCCI engines due to its suitable capability of ...
Jahanian O., Jazayeri S. A.
doaj   +1 more source

Reduction and optimization of ammonia-hydrogen combustion reaction kinetic model for HCCI engines

open access: yesJournal of Thermal Science and Technology, 2023
To obtain a smaller-scale ammonia-hydrogen hybrid mechanism with better predictive performance suitable for HCCI engine combustion, the stagni mechanism, which is closer to the combustion temperature, pressure and equivalence ratio conditions of HCCI ...
Gongping MAO, Min HUANG
doaj   +1 more source

Reasonable Intake and Exhaust Processes Scheduling of Two‐Stroke Free Piston Linear Generator for Intelligent New Energy Vehicles

open access: yesEnergy Science &Engineering, Volume 13, Issue 5, Page 2428-2439, May 2025.
Reasonable intake and exhaust processes scheduling. ABSTRACT Considered a promising power plant offering 25% higher efficiency than conventional reciprocating engines, the free piston linear generator (FPLG) has garnered significant attention due to its breakthrough design that eliminates the crank‐connecting rod, thereby achieving enhanced efficiency.
Dequan Zeng   +6 more
wiley   +1 more source

Investigation of combined effects of compression ratio and steam injection on performance, combustion and emissions characteristics of HCCI engine

open access: yesCase Studies in Thermal Engineering, 2017
Combined effects of compression ratios and steam injection on performance, combustion and emission characteristics of a HCCI engine are numerically investigated.
Fridhi Hadia   +3 more
doaj   +1 more source

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