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Viewing 1 to 34 of 34
Technical Paper
2017-03-28
Author(s): Irimescu, A., Di Iorio, S., Merola, S., Sementa, P. et al.
Abstract Multi-fuel operation is one of the main topics of investigative research in the field of internal combustion engines. Spark ignition (SI) power units are relatively easily adaptable to altern....
Technical Paper
2017-03-28
Author(s): Mayr, P., Pirker, G., Wimmer, A., and Krenn, M.
Abstract It is critical for gas and dual fuel engines to have improved transient characteristics in order that they can successfully compete with diesel engines. Testing of transient behavior as well ....
Technical Paper
2017-03-28
Author(s): Hofmann, O., Han, S., and Rixen, D.
Abstract This study discusses model-based injection rate estimation in common rail diesel injectors exhibiting aging phenomena. Since they result in unexpected injection behavior, aging effects like c....
Journal Article
2017-03-28
Author(s): Fogla, N., Bybee, M., Mirzaeian, M., Millo, F. et al.
The turbulent flow field inside the cylinder plays a major role in spark ignition (SI) engines. Multiple phenomena that occur during the high pressure part of the engine cycle, such as early ....
Journal Article
2017-03-28
Author(s): De Bellis, V., Bozza, F., Teodosio, L., and Valentino, G.
Abstract In this work, a promising technique, consisting of a liquid Water Injection (WI) at the intake ports, is investigated to overcome over-fueling and delayed combustions typical of downsized boo....
Technical Paper
2017-03-28
Author(s): Nguyen, D. and Verhelst, S.
Abstract Methanol fueled spark ignition (SI) engines have the potential for very high efficiency using an advanced heat recovery system for fuel reforming. In order to allow simulation of such an engi....
Technical Paper
2017-03-28
Author(s): Netzer, C., Seidel, L., Pasternak, M., Klauer, C. et al.
Abstract Engine knock is an important phenomenon that needs consideration in the development of gasoline fueled engines. In our days, this development is supported by the use of numerical simulation t....
Technical Paper
2017-03-28
Author(s): Ates, M., Matthews, R., and Hall, M.
Abstract A quasi-dimensional model for a direct injection diesel engine was developed based on experiments at Sandia National Laboratory. The Sandia researchers obtained images describing diesel spray....
Technical Paper
2017-03-28
Author(s): Goodwin, W., Mancuso, C., and Brown, N.
This paper describes how distributive computing along with statistical subsystem simulation can be applied to produce near production ready embedded vehicle software and calibrations. Couplin....
Journal Article
2017-03-28
Author(s): Kuan, C., Styles, D., Bieniek, M., and Hoard, J.
Abstract Thermal effectiveness of Exhaust Gas Recirculation (EGR) coolers used in diesel engines can progressively decrease and stabilize over time due to inner fouling layer of the cooler tubes. Ther....
Technical Paper
2017-03-28
Author(s): Jander, B. and Baar, R.
Abstract The knowledge of thermal behavior of combustion engines is extremely important e.g. to predict engine warm up or to calculate engine friction and finally to optimize fuel consumption. Typical....
Journal Article
2017-03-28
Author(s): Dekraker, P., Stuhldreher, M., and Kim, Y.
Abstract The U.S. Environmental Protection Agency’s (EPA’s) Advanced Light-Duty Powertrain and Hybrid Analysis (ALPHA) tool was created to estimate greenhouse gas (GHG) emissions from light-duty vehic....
Technical Paper
2017-03-28
Author(s): Lee, H., Lee, B., Kim, S., Kim, N. et al.
Abstract Many leading companies in the automotive industry have been putting tremendous amount of efforts into developing new designs and technologies to make their products more energy efficient. It ....
Technical Paper
2017-03-28
Author(s): Kiwan, R., Stefanopoulou, A., Martz, J., Surnilla, G. et al.
Abstract Low Pressure (LP) Exhaust Gas Recirculation (EGR) promises fuel economy benefits at high loads in turbocharged SI engines as it allows better combustion phasing and reduces the need for fuel ....
Technical Paper
2017-03-28
Author(s): Holmberg, T., Cronhjort, A., and Stenlaas, O.
Abstract In one dimensional engine simulation software, flow losses over complex geometries such as valves and ports are described using flow coefficients. It is generally assumed that the pressure ra....
Technical Paper
2017-03-28
Author(s): Kane, S., Li, X., Wolk, B., Ekoto, I. et al.
Abstract Fuel reforming during a Negative Valve Overlap (NVO) period is an effective approach to control Low Temperature Gasoline Combustion (LTGC) ignition. Previous work has shown through experiment....
Technical Paper
2017-03-28
Author(s): Miller, E., Konan, A., and Duran, A.
Accurate vehicle parameters are valuable for design, modeling, and reporting. Estimating vehicle parameters can be a very time-consuming process requiring tightly-controlled experimentation. ....
Technical Paper
2017-03-28
Author(s): Yazdani, A., Naber, J., Shahbakhti, M., Dice, P. et al.
An accurate estimation of cycle-by-cycle in-cylinder mass and the composition of the cylinder charge is required for spark-ignition engine transient control strategies to obtain required torq....
Technical Paper
2017-03-28
Author(s): Vitek, O. and Macek, J.
Abstract The proposed paper deals with thermodynamic optimization of highly flexible ICE (variable compression ratio, intake/exhaust VVA) while comparing e-turbocharging concept with classical one. Th....
Technical Paper
2017-03-28
Author(s): Kim, N., Kim, J., Ko, I., Choi, H. et al.
Abstract The role of 1D simulation tool is growing as the engine system is becoming more complex with the adoption of a variety of new technologies. For the reliability of the 1D simulation results, i....
Technical Paper
2017-03-28
Author(s): Liang, L., Ge, H., Ge, H., and Zhao, P.
Abstract The thermal efficiency of spark-ignition engines can be enhanced by increasing the rate of exhaust gas recirculation (EGR) such that the low temperature combustion regime could be achieved. H....
Journal Article
2017-03-28
Author(s): Dempsey, A., Fiveland, S., and Post, S.
Abstract This study focuses on the development of an autoignition model for diesel sprays that is applicable to phenomenological multi-zone combustion models. These models typically use a single-step ....
Technical Paper
2017-03-28
Author(s): Zhao, J. and Sciarretta, A.
Abstract Fuel consumption is an essential factor that requires to be minimized in the design of a vehicle powertrain. Simple energy models can be of great help - by clarifying the role of powertrain d....
Technical Paper
2017-03-28
Author(s): Merrett, R., Murray, J., and Kolak, D.
Abstract The development of experimental ORC systems is an extremely complex, time consuming and costly task. Running a range of experiments on a number of different component configurations may be pr....
Technical Paper
2017-03-28
Author(s): Montenegro, G., Della Torre, A., Cerri, T., Onorati, A. et al.
Abstract In this work an integration between a 1D code (Gasdyn) with a CFD code (OpenFOAM®) has been applied to improve the performance of a Moto3 engine. The four-stroke, single cylinder S.I. engine ....
Technical Paper
2017-03-28
Author(s): Khosravi, M., Harihar, A., Pitsch, H., and Weber, C.
Abstract The performance of modern boosted gasoline engines is limited at high loads by knock, stochastic Low Speed Pre-Ignition as well as megaknock. The main objective of the present work is to deve....
Journal Article
2017-03-28
Author(s): Hann, S., Urban, L., Grill, M., and Bargende, M.
Abstract Since 0D/1D-simulations of natural gas spark ignition engines use model theories similar to gasoline engines, the impact of changing fuel characteristics needs to be taken into consideration ....
Journal Article
2017-03-28
Author(s): Taritas, I., Kozarac, D., Sjeric, M., Sierra Aznar, M. et al.
Abstract This paper presents a newly developed quasi-dimensional multi-zone dual fuel combustion model, which has been integrated within the commercial engine system simulation framework. Model is bas....
Technical Paper
2017-03-28
Author(s): Franken, T., Sommerhoff, A., Willems, W., Matrisciano, A. et al.
Today numerical models are a major part of the diesel engine development. They are applied during several stages of the development process to perform extensive parameter studies and to inves....
Technical Paper
2017-03-28
Author(s): De Cuyper, T., Broekaert, S., Nguyen, D., Chana, K. et al.
Abstract Engine optimization requires a good understanding of the in-cylinder heat transfer since it affects the power output, engine efficiency and emissions of the engine. However little is known ab....
Journal Article
2017-03-28
Author(s): Della Torre, A., Montenegro, G., Cerri, T., and Onorati, A.
Abstract Nowadays quasi-3D approaches are included in many commercial and research 1D numerical codes, in order to increase their simulation accuracy in presence of complex shape 3D volumes, e.g. plen....
Technical Paper
2017-03-28
Author(s): Serrano, J., García-Cuevas lng, L., Tiseira, A., Rodriguez Usaquen, T. et al.
Abstract The growing concerns about emissions in internal combustion engines, makes necessary a good prediction of the after-treatment inlet temperature in fast one-dimensional engine simulation codes....
Technical Paper
2017-03-28
Author(s): Matrisciano, A., Franken, T., Perlman, C., Borg, A. et al.
Abstract A novel 0-D Probability Density Function (PDF) based approach for the modelling of Diesel combustion using tabulated chemistry is presented. The Direct Injection Stochastic Reactor Model (DI-....
Technical Paper
2017-03-28
Author(s): Yang, T., Yin, L., Ingesson, G., Tunestal, P. et al.
Abstract In this paper, a control-oriented soot model was developed for real-time soot prediction and combustion condition optimization in a gasoline Partially Premixed Combustion (PPC) Engine. PPC is....
Viewing 1 to 34 of 34