Hybridization of powertrain and downsizing of IC engine – A way to reduce fuel consumption and pollutant emissions – Part 1

Katrašnik, Tomaž

doi:10.1016/j.enconman.2006.12.004

Cited by 80 publications

(41 citation statements)

References 31 publications

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“…As a result, several non-conventional motorisations are becoming more popular than in the past [3,4,5]. Among these, hybrid technology has been proven effective in view of improving the fuel efficiency and reducing air pollution due to its assisted propulsion of an electric engine [6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Emission Factors for New Technology S. I. Euro 4 Cars

Meccariello

Ragione

Costagliola

et al. 2012

CIT

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This research attempted to analyze the environmental impact of two available non-conventional vehicle technologies, highlighting the benefits in terms of emissions and fuel consumption reduction with respect to conventional vehicles. Moreover, tests were compared with predicted emissions of the conventional gasoline technology provided by the kinematic model developed. Results show that cold start strongly affects the emissions of CO, THC and NO X , which become very low during hot driving cycle. The existing emission model cannot be used to obtain a satisfactory prediction for hybrid car. But it could be proved that KEM emission model allows us to predict emission factor for conventional car and compressed natural gas. However, it is concluded that new experimental campaign with new technological cars might be interesting for future model developments.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Emission Factors for New Technology S. I. Euro 4 Cars

Meccariello

Ragione

Costagliola

et al. 2012

CIT

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“…A significant amount of CO 2 is released into the atmosphere by combusting fossil fuels [4], and a rapid emission reduction (up to 85%) has to be achieved by 2050 [5]. It is reasonable to use the diesel engines as the internal combustion engine power source due to their more efficient energy conversion and higher safety factor when compared to the spark ignition engines [6]. In internal combustion diesel engines there is mostly diffusion combustion present, meaning that the spray characteristics have the direct influence on the fuel energy conversion and the formation of harmful substances [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of diesel spray using the Eulerian multiphase approach

Vujanović

Petranović

Edelbauer

et al. 2015

Energy Conversion and Management

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a b s t r a c tThis research investigates high pressure diesel fuel injection into the combustion chamber by performing computational simulations using the Euler-Eulerian multiphase approach. Six diesel-like conditions were simulated for which the liquid fuel jet was injected into a pressurised inert environment (100% N 2 ) through a 205 lm nozzle hole. The analysis was focused on the liquid jet and vapour penetration, describing spatial and temporal spray evolution. For this purpose, an Eulerian multiphase model was implemented, variations of the sub-model coefficients were performed, and their impact on the spray formation was investigated. The final set of sub-model coefficients was applied to all operating points. Several simulations of high pressure diesel injections (50, 80, and 120 MPa) combined with different chamber pressures (5.4 and 7.2 MPa) were carried out and results were compared to the experimental data. The predicted results share a similar spray cloud shape for all conditions with the different vapour and liquid penetration length. The liquid penetration is shortened with the increase in chamber pressure, whilst the vapour penetration is more pronounced by elevating the injection pressure. Finally, the results showed good agreement when compared to the measured data, and yielded the correct trends for both the liquid and vapour penetrations under different operating conditions.

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“…As a result of better fuel-energy conversion compared to spark ignition engines [1], diesel engines have greater popularity on the transportation vehicle market. Their overall efficiency in terms of fuel consumption and pollutant emissions is highly dependent upon the fuel-air mixing which is strongly influenced by fuel atomisation and evaporation processes.…”

Section: Introductionmentioning

confidence: 99%

Modelling of spray and combustion processes by using the Eulerian multiphase approach and detailed chemical kinetics

Petranović

Edelbauer

Vujanović

et al. 2017

Fuel

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This research deals with computational modelling of non-reactive and reactive turbulent spray processes. The spray process is modelled using the Euler Eulerian multiphase approach together with a size-of-classes model where the discrete phase is considered as continuum and divided into sub-classes. The combustion process is modelled by taking into account chemical kinetics and solving homogeneous gas phase reactions. The combustion model is implemented into a commercial computational fluid dynamics code, and used in combination with previously validated spray sub-models. Several non-reactive cases are modelled by comparing the fuel spatial and temporal development to the available experimental data. The modelled results show excellent agreement for fuel penetration and mixture distributions. Furthermore, the developed method is validated by modelling reactive spray processes within constant volume vessel, and by comparing results to the Engine combustion network experimental data. The vessel conditions correspond well to diesel-like conditions in terms of gas residuals, pressure and temperature. Finally, the given results show a good agreement for the lift-off length and the ignition delay trends compared to the experimental data, but a slight discrepancy in the combustion process occurrence is observed.

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Hybridization of powertrain and downsizing of IC engine – A way to reduce fuel consumption and pollutant emissions – Part 1

Cited by 80 publications

References 31 publications

Evaluation of Emission Factors for New Technology S. I. Euro 4 Cars

Evaluation of Emission Factors for New Technology S. I. Euro 4 Cars

Numerical modelling of diesel spray using the Eulerian multiphase approach

Modelling of spray and combustion processes by using the Eulerian multiphase approach and detailed chemical kinetics

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