Results 31 to 40 of about 655 (183)

Performance and Emission Parameters of Homogeneous Charge Compression Ignition (HCCI) Engine: A Review

open access: yesEnergies, 2019
Strict emission regulations and demand for better fuel economy are driving forces for finding advanced engines that will be able to replace the conventional internal combustion engines in the near future.
M. Mofijur   +5 more
doaj   +1 more source

An Experimental Investigation of the Effects of Acetone, Tetrahydrofuran and N-heptane Fuel Blends on HCCI Combustion and Engine Performance

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2019
In the current study, a single cylinder, four stroke gasoline engine was converted to HCCI engine. HCCI engine was run at 1400 rpm, between λ=1.9 and λ=2.74 lambda values with n-heptane, acetone/n-heptane (A20N80) and tetrahydrofuran/n-heptane (F20N80 ...
Bilal AYDOĞAN   +2 more
doaj   +1 more source

Research on Homogeneous Charge Compression Ignition Combustion of Intake Port Exhaust Gas Recirculation Based on Cam Drive Hydraulic Variable Valve Actuation Mechanism

open access: yesEnergies, 2022
The thermal efficiency of an efficient gasoline engine is only about 40% and it will produce a large number of harmful products. Curbing harmful emissions and enhancing thermal efficiency have always been the goals pursued and emission regulations are ...
Linghai Han   +6 more
doaj   +1 more source

A Numerical Study on the Effects of Exhaust Gas Recirculation Temperature on Controlling Combustion and Emissions of a Diesel Engine running on HCCI Combustion Mode

open access: yesInternational Journal of Automotive Science and Technology, 2018
In this study a comprehensive study is carried out numerically on a single cylinder four-stroke Diesel engine operating in homogenous charge compression ignition (HCCI) mode of combustion for the effects of exhaust gas recirculation (EGR) temperature and
Mohammad Marouf Wani̇   +1 more
doaj   +1 more source

HCCI Combustion: Analysis and Experiments [PDF]

open access: yesSAE Technical Paper Series, 2001
<div class="htmlview paragraph">Homogeneous charge compression ignition (HCCI) is a new combustion technology that may develop as an alternative to diesel engines with high efficiency and low NO<sub>x</sub> and particulate matter emissions. This paper describes the HCCI research activities being currently pursued at Lawrence Livermore
Aceves, S. M.   +6 more
openaire   +1 more source

A Turbo Charged Dual Fuel HCCI Engine [PDF]

open access: yesSAE Technical Paper Series, 2001
<div class="htmlview paragraph">A 6-cylinder truck engine is modified for turbo charged dual fuel Homogeneous Charge Compression Ignition (HCCI) engine operation. Two different fuels, ethanol and n-heptane, are used to control the ignition timing.
Olsson, Jan-Ola   +3 more
openaire   +2 more sources

Hydrogen‐Enriched Tri‐Fuel Combustion for Low‐Carbon Engines at Medium Engine Load: A Comprehensive CFD Analysis

open access: yesEnergy Science &Engineering, EarlyView.
CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam   +4 more
wiley   +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

Implementation of thermal and fuel stratification strategies to extend the load limit of HCCI engine

open access: yesJournal of Thermal Science and Technology, 2019
The HCCI engine can be a possible potential engine technology that gives high performance with fewer dangerous exhaust emissions. In HCCI engines, low-temperature combustion of lean, highly premixed charge effectively reduces the NOX and soot.
Amit KARWADE, Shashikant THOMBRE
doaj   +1 more source

Environmental Burden of Diesel Engines: A Life‐Cycle Assessment and the Imperative for Cleaner Alternatives

open access: yesGlobal Challenges, Volume 10, Issue 7, July 2026.
This study reveals that the use phase of diesel engines contributes the greatest environmental burden due to intensive diesel consumption and related emissions. Life‐cycle assessment highlights severe impacts on climate change, fossil fuel depletion, acidification, and particulate pollution, emphasizing the importance of biodiesel integration, hybrid ...
Sanjeev Kumar   +8 more
wiley   +1 more source

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