Combustion Mechanism Analysis with In-Chamber Gas Composition Measurements in a Premixed Lean Compression Ignition Engine.

Ogawa, Hideyuki; Li, Chenyu; Tosaka, Shigeru; Fujiwara, Yasuhiro; Miyamoto, Noboru

doi:10.1299/kikaib.65.1101

Cited by 8 publications

(5 citation statements)

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“…HC -One drawback with HCCI is the high emissions of unburned hydrocarbons. When the engine is operated ultra lean without any EGR, up to ten per cent of the fuel can escape from the combustion [17,18]. The volume fraction of unburned hydrocarbons does not show any obvious dependence on the EGR.…”

Section: Rate Of Combustion -mentioning

confidence: 99%

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Influence of Mixture Quality on Homogeneous Charge Compression Ignition

Christensen¹,

Johansson²

1998

SAE Technical Paper Series

154

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Section: Rate Of Combustion -mentioning

confidence: 99%

“…Different combustion methods, which partly uses compression ignition of a homogeneous charge, have recently been studied by several different authors [13,14,15,16,17,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Influence of Mixture Quality on Homogeneous Charge Compression Ignition

Christensen¹,

Johansson²

1998

SAE Technical Paper Series

154

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“…Various works [32][33][34][35][36] shows the importance of modelling work and its validation by experimental work concerning combustion systems. Many works performed measurements of species at both the exhaust pipe and during the combustion [37][38][39][40]. Mishra et al [41] measured concentrations of selected hydrocarbons (CH 4 , C 2 H 6 , C 2 H 4 and C 2 H 2 ) have been measured in CH 4 /air partially premixed flames for different primary mixture equivalence ratio and primary jet velocity using gas chromatography.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of concentration profiles in an HCCI engine, modelled by a multi-component kinetic mechanism: Outline for auto-ignition and emission control

Machrafi

2010

Energy Conversion and Management

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In order to contribute to the auto-ignition and emission control for Homogeneous Charge Compression Ignition (HCCI), a kinetic multi-component mechanism, containing 62 reactions and 49 species for mixtures of n-heptane, iso-octane and toluene is validated in this work, comparing for the concentration profiles of the fuel, the total hydrocarbons, O 2 , CO 2 , CO, acetaldehyde and iso-butene. These species are sampled during the combustion and quantified. For these measurements an automotive exhaust analyser, a gas chromatograph, coupled to a mass spectrometer and a flame ionisation detector are used, depending on the species to be measured. The fuel, total hydrocarbons, O 2 , CO 2 , iso-butene and acetaldehyde showed a satisfactory quantitative agreement between the mechanism and the experiments.Both the experiments and the modelling results showed the same formation behaviour of the different species. An example is shown of how such a validated mechanism can provide for a set of information of the behaviour of the auto-ignition process and the emission control as a function of engine parameters.2

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“…Several studies on four stroke engines have also been carried out [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. High efficiency and low NOxemissions are reported, but emissions of unburned hydrocarbons are high.…”

Section: Introductionmentioning

confidence: 99%

Homogeneous Charge Compression Ignition with Water Injection

Christensen¹,

Johansson²

1999

SAE Technical Paper Series

175

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The use of water injection in a Homogeneous Charge Compression Ignition (HCCI) engine was experimentally investigated. The purpose of this study was to examine whether it is possible to control the ignition timing and slow down the rate of combustion with the use of water injection. The effects of different water flows, air/fuel ratios and inlet pressures were studied for three different fuels, iso-octane, ethanol and natural gas.It is possible to control the ignition timing in a narrow range with the use of water injection, but to the prize of an increase in the already high emissions of unburned hydrocarbons. The CO emission also increased. The NOx emissions, which are very low for HCCI, decreased even more when water injection was applied. The amount of water used was of the magnitude of the fuel flow.

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Combustion Mechanism Analysis with In-Chamber Gas Composition Measurements in a Premixed Lean Compression Ignition Engine.

Cited by 8 publications

References 0 publications

Influence of Mixture Quality on Homogeneous Charge Compression Ignition

Influence of Mixture Quality on Homogeneous Charge Compression Ignition

Experimental validation of concentration profiles in an HCCI engine, modelled by a multi-component kinetic mechanism: Outline for auto-ignition and emission control

Homogeneous Charge Compression Ignition with Water Injection

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