An experimental study on the effect of hydrogen enrichment on diesel fueled HCCI combustion

Guo, Hongsheng; Hosseini, Vahid; Neill, W. Stuart; Chippior, Wallace L.; Dumitrescu, Cosmin E.

doi:10.1016/j.ijhydene.2011.07.143

Cited by 61 publications

(32 citation statements)

References 39 publications

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“…Both cases used the same quantity of diesel but the absence of low temperature heat release when using hydrogen as a fumigant is further evidence that the fumigant 5 Copyright © 2012 by ASME plays a key role in the ignition process. Similar observations have been shown and discussed by Guo et al [20]. In a study of a diesel HCCI engine with hydrogen enrichment, it was shown that the participation of hydrogen in some reactions during low temperature heat release stage led to delayed combustion phasing as well as diminished low temperature heat release.…”

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confidence: 87%

Determining Optimal Performance in Adapting Onsite Electrical Generation Platforms to Operate on Producer Gas from Fuels of Opportunity

Rasmussen¹

2013

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supporting

confidence: 87%

Determining Optimal Performance in Adapting Onsite Electrical Generation Platforms to Operate on Producer Gas from Fuels of Opportunity

Rasmussen¹

2013

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“…Meanwhile, hydrogen has a higher flame speed and leaner extinction limit, suggesting that the addition of hydrogen may enhance the primary high temperature combustion process and thus reduce the combustion duration of a diesel HCCI engine. Our experimental measurements [22] show that hydrogen enrichment does help to retard the combustion phasing, reduce the combustion duration and improve the fuel conversion efficiency of a diesel fuelled HCCI engine. However, not enough attention has been paid for the fundamental mechanisms behind the phenomena of hydrogen enriched HCCI combustion in [22] and other previous publications.…”

Section: Introductionmentioning

confidence: 79%

“…The studied engine is a Cooperative Fuel Research (CFR) engine used in the experimental study in [22]. It is a single-cylinder, four-stroke, variable compression ratio engine.…”

Section: Numerical Modelmentioning

confidence: 99%

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The effect of hydrogen addition on combustion and emission characteristics of an n-heptane fuelled HCCI engine

Guo

Neill

2013

International Journal of Hydrogen Energy

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/j.ijhydene.2013.06.084International Journal of Hydrogen Energy, 38, 26, pp. 11429-11437, 2013-07-17 The effect of hydrogen addition on combustion and emission characteristics of an n-heptane fuelled HCCI engine Guo, Hongsheng; Neill, W. Stuart The Effect of Hydrogen Addition on Combustion and EmissionCharacteristics of an n-Heptane Fuelled HCCI Engine AbstractThe mechanisms of the influence of hydrogen enrichment on the combustion and emission characteristics of an n-heptane fuelled homogeneous charge compression ignition (HCCI) engine was numerically investigated using a multi-zone model. The model calculation successfully captured most available experimental data. The results show that hydrogen addition retards combustion phasing of an n-heptane fuelled HCCI engine due to the dilution and chemical effects, with the dilution effect being more significant. It is because of the chemical effect that combustion duration is reduced at a constant compression ratio if an appropriate amount of hydrogen is added. As a result of retarded combustion phasing and reduced combustion duration, hydrogen addition increases indicated thermal efficiency at a constant combustion phasing. Hydrogen addition reduces indicated specific unburned hydrocarbon emissions, but slightly increases normalized unburned hydrocarbon emissions that are defined as the emissions per unit burned n-heptane mass. The increase in normalized unburned hydrocarbon emissions is caused by the presence of more remaining hydrocarbons that compete with hydrogen for some key radicals during high temperature combustion stage. At a given hydrogen addition level, N 2 O emissions increases with overly retarding combustion phasing, but hydrogen addition moderates this increase in N 2 O emissions.

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“…수소 압축착화 엔진을 흡기 가열이나 과급없이 상용 디젤엔진 정도의 압축비를 사용하여 압축착화 를 하려면, 보조 연료의 도입이 필요하다 [7][8][9][10][11]. DME 는 자착화 온도가 508 K 정도로 낮고 압축 착화성을 나타내는 세탄가가 55 이상으로 높아 압축착화 엔진 의 착화제로 사용하기 용이하다 [12].…”

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Combustion Control through the DME Injection Timing in the Hydrogen-DME Partially Premixed Compression Ignition Engine

Jeon¹,

Bae²

2013

Journal of the Korean Society of Combustion

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Hydrogen-dimethy ether(DME) partially premixed compression ignition(PCCI) engine combustion was investigated in a single cylinder compression ignition engine. Hydrogen and DME were used as low carbon alternative fuels to reduce green house gases and pollutant. Hydrogen was injected at the intake manifold with an injection pressure of 0.5 MPa at fixed injection timing, -210 °CA aTDC. DME was injected directly into the cylinder through the common-rail injection system at injection pressure of 30 MPa. DME inejction timing was varied to find the optimum PCCI combustion to reduce CO, HC and NOx emissions. When DME was injected early, CO and HC emissions were high while NOx emission was low. As the DME injection was retarded, the CO and HC emissions were decreased due to high combustion efficiency. NOx emissions were increased due to the high in-cylinder temperature. When DME were injected at -30 °CA aTDC, reduction of HC, CO and NOx emissions was possible with high value of IMEP.

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An experimental study on the effect of hydrogen enrichment on diesel fueled HCCI combustion

Cited by 61 publications

References 39 publications

Determining Optimal Performance in Adapting Onsite Electrical Generation Platforms to Operate on Producer Gas from Fuels of Opportunity

Determining Optimal Performance in Adapting Onsite Electrical Generation Platforms to Operate on Producer Gas from Fuels of Opportunity

The effect of hydrogen addition on combustion and emission characteristics of an n-heptane fuelled HCCI engine

Combustion Control through the DME Injection Timing in the Hydrogen-DME Partially Premixed Compression Ignition Engine

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