Effects of fuel injection parameters on premixed charge compression ignition combustion and emission characteristics in a medium-duty compression ignition diesel engine:
01 Feb 2021-International Journal of Engine Research (SAGE PublicationsSage UK: London, England)-Vol. 22, Iss: 2, pp 443-455
TL;DR: From the different power plants, the compression ignition diesel engines are considered the best alternative to be used in the transport sector due to its high efficiency as discussed by the authors, however, the current emis...
Abstract: From the different power plants, the compression ignition diesel engines are considered the best alternative to be used in the transport sector due to its high efficiency. However, the current emis...
Citations
More filters
TL;DR: Low Temperature Combustion (LTC) strategies are most promising to simultaneously reduce oxides of nitrogen (NOx) and soot emissions from diesel engines along with offering higher thermal efficiency as discussed by the authors.
Abstract: Low Temperature Combustion (LTC) strategies are most promising to simultaneously reduce oxides of nitrogen (NOx) and soot emissions from diesel engines along with offering higher thermal efficiency...
26 citations
Additional excerpts
...Unlike PFI HCCI, early DI HCCI results in fuel-air mixture gradients and a lower degree of homogeneity.(70,71) However, it is found to be beneficial to achieve better ignition control and a higher operating load Figure 8....
[...]
TL;DR: Considering the need of pollutant emissions reduction and the high cost of the after-treatment systems, in-cylinder solutions for pollutant reduction are becoming more and more relevant as discussed by the authors. But they are not suitable for all applications.
Abstract: Considering the need of pollutant emissions reduction and the high cost of the after-treatment systems, in-cylinder solutions for pollutant reduction are becoming more and more relevant. Among diff...
12 citations
TL;DR: The new European directive for the promotion of renewable energy mandates an increase in the share of advanced and waste-based bio-fuels in the transport sector as mentioned in this paper, and an advanced glycerol-based fuel was used in this context.
Abstract: The new European directive for the promotion of renewable energy mandates an increase in the share of advanced and waste-based biofuels in the transport sector. In this study, an advanced glycerol-...
11 citations
Cites methods from "Effects of fuel injection parameter..."
...This re-optimization procedure could take regulation limits as a reference for quantification through a merit function that could be optimized mathematically.(34)...
[...]
TL;DR: In this article, the behavior of an electrically heated catalyst used in a hybrid medium-duty truck operating with diesel-gasoline RCCI combustion is studied in transient conditions by means of numerical simulations validated with experimental data.
9 citations
Abstract: The urgent need for reducing the carbon dioxide emissions has led to the powertrain electrification at different levels such as hybridization or pure electric vehicles. Despite the benefits in term...
9 citations
References
More filters
TL;DR: In this paper, a thermodynamic approach, coherent with the mentioned species distinction, is also proposed, and the results of temperature correlations of the main thermodynamic properties are presented, as well as some results of the combustion diagnostic procedure from engine tests with different exhaust gas recirculation ratios.
252 citations
238 citations
06 May 2002
222 citations
164 citations
"Effects of fuel injection parameter..." refers background in this paper
...The low volatility of the diesel fuel implies the requirement of high injection pressure strategies with different exhaust gas recirculation (EGR) rates to promote the PCCI combustion.(17,18) In this sense, high injection pressures(19) and high swirl ratios promote a better air–fuel mixing process, generating sufficient premixing time between SoC and EoI (end of injection) to achieve an efficient PCCI combustion....
[...]
TL;DR: In this article, a premixed diesel combustion was performed and various characteristics examined with fuel injection timing near top dead center (TDC), and a lean and uniform fuel-air mixture was found to during 25° C.A. with a narrow injectionangle (27.5° with respect to horizontal), shallow dish combustion chamber, and low cetane number fuel (CN=19).
Abstract: Premixed diesel combustion was performed and various characteristics examined with fuel injection timing near top dead center (TDC). A lean and uniform fuel-air mixture was found to during 25° C.A. with a narrow injectionangle (27.5° with respect to horizontal), shallow dish combustion chamber, and low cetane number fuel (CN=19). These conditions enabled low NOx combustion in no exhaust gas re-circulation (EGR), despite fuel injection timing around 25° BTDC. Furthermore, HC emissions were lower than with premixed diesel combustion of the early injection type. Because fuel injection timing was near TDC, the volume of the mixture dispersed to a squish area was decreased. This combustion mode was also achieved with a high-cetane fuel (conventional diesel fuel) and high EGR rate conditions. However, in this case, it was difficult to adjust the ignition timing near top dead center. This combustion system also showed good performance in conventional diesel combustion mode. This system permits dual mode diesel combustion, as follows: Premixed diesel combustion mode, which results in low NOx and smoke at engine out, is useful for low load conditions, when exhaust temperatures are too low for effective use of aftertreatment catalysts. Conventional diesel combustion applies to high load condition when exhaust gas temperatures are suitable for aftertreatment system.
159 citations