Results 61 to 70 of about 291 (183)

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

A Review on Homogeneous Charge Compression Ignition and Low Temperature Combustion by Optical Diagnostics

open access: yesJournal of Chemistry, 2015
Optical diagnostics is an effective method to understand the physical and chemical reaction processes in homogeneous charge compression ignition (HCCI) and low temperature combustion (LTC) modes.
Chao Jin, Zunqing Zheng
doaj   +1 more source

Experimental characterization of ethanol controlled auto-ignition in a single-cylinder research engine

open access: yesCase Studies in Thermal Engineering
This article reports an experimental analysis of combustion, fuel consumption and pollutant emissions parameters in a single-cylinder research engine operating on spark-ignition (SI) and controlled auto-ignition (CAI), fueled with ethanol.
Augusto César Teixeira Malaquias   +6 more
doaj   +1 more source

DNS Investigation on Autoignition and Flame Propagation in HCCI Combustion

open access: yesJournal of Fluid Science and Technology, 2011
2-dimensional direct numerical simulation (DNS) of autoignition and flame propagation of turbulent premixed mixture has been conducted to investigate the turbulent combustion mechanism in homogeneous charge compression ignition (HCCI) engines.
Hiroaki FUKUMOTO   +5 more
doaj   +1 more source

A DNS study of the effects of temperature non-uniformity and turbulence on an auto-ignition process in a homogeneous n-heptane/air mixture

open access: yesNihon Kikai Gakkai ronbunshu, 2014
We examine the effects of temperature non-uniformity and turbulence on homogeneous charge compression ignition (HCCI) of a homogeneous n-heptane/air mixture, using three-dimensional direct numerical simulations of the mixture flows.
Takashi ISHIHARA   +4 more
doaj   +1 more source

High Efficiency, Low Emissions Homogeneous Charge Compression Ignition (HCCI) Engines [PDF]

open access: yes, 2010
This is the final report of the High Efficiency Clean Combustion (HECC) Research Program for the U.S. Department of Energy. Work under this co-funded program began in August 2005 and finished in July 2010. The objective of this program was to develop and demonstrate a low emission, high thermal efficiency engine system that met 2010 EPA heavy-duty on ...
Roland Gravel   +3 more
openaire   +2 more sources

Evaluate the influence of several parameters on the HCCI combustion process in a constant volume combustion chamber

open access: yesDiscover Applied Sciences
The combustion process in a Homogeneous compression charge ignition (HCCI) engine is complex and determined by the dynamics of chemical reactions, while the combustion timing remains challenging to control.
Nguyen Van Tuan   +2 more
doaj   +1 more source

Experimental Research on Controllability and Emissions of Jet-Controlled Compression Ignition Engine

open access: yesEnergies, 2019
Low-temperature combustions (LTCs), such as homogeneous charge compression ignition (HCCI), could achieve high thermal efficiency and low engine emissions by combining the advantages of spark-ignited (SI) engines and compression-ignited (CI) engines ...
Hua Tian   +5 more
doaj   +1 more source

Analysis of Performance and Emission Characteristics of a Homogeneous Charge Compression Ignition (HCCI) Engine

open access: yesProcedia Technology, 2016
AbstractIn internal combustion engines, soot-NOx paradox is extremely challenging issue, which remains to be resolved. Homogeneous charge compression ignition (HCCI) is a new combustion concept that gives benefits such as diesel like efficiency and resolves the problem of high level of NOx and PM simultaneously.
Hussaini, Syed Yaser   +2 more
openaire   +1 more source

Control simulation of an HCCI engine with a discrete model

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Homogeneous charge compression ignition (HCCI) engine has some advantages such as high efficiency and low emissions. On the other hand, it has challenges that it is difficult to avoid knocking and misfire.
Takuya HAYASHI   +5 more
doaj   +1 more source

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