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0-D and 1-D Modeling and Numerics, 2017
Viewing 1 to 34 of 34
Correlation between Simulated Volume Fraction Burned Using a Quasi-Dimensional Model and Flame Area Measured in an Optically Accessible SI Engine
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....
Simulation-Based Control of Transient SCE Operation
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 ....
Common Rail Diesel Injectors with Nozzle Wear: Modeling and State Estimation
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....
Development of a K-k-∊ Phenomenological Model to Predict In-Cylinder Turbulence
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 ....
Experimental and Numerical Study of the Water Injection to Improve the Fuel Economy of a Small Size Turbocharged SI Engine
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....
Development of Laminar Burning Velocity Correlation for the Simulation of Methanol Fueled SI Engines Operated with Onboard Fuel Reformer
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....
Engine Knock Prediction and Evaluation Based on Detonation Theory Using a Quasi-Dimensional Stochastic Reactor Model
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....
A Full-Cycle Multi-Zone Quasi-Dimensional Direct Injection Diesel Engine Model Based on a Conceptual Model Developed from Imaging Experiments
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....
Software Test and Calibration Using Virtual Manufacturing
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....
An EGR Cooler Fouling Model: Experimental Correlation and Model Uses
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....
Modeling Thermal Engine Behavior Using Artificial Neural Network
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....
Characterizing Factors Influencing SI Engine Transient Fuel Consumption for Vehicle Simulation in ALPHA
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....
Model-Based Fuel Economy Technology Assessment
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 ....
Effects of Differential Pressure Sensor Gauge-Lines and Measurement Accuracy on Low Pressure EGR Estimation Error in SI Engines
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 ....
Pressure Ratio Influence on Exhaust Valve Flow Coefficients
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....
Investigation of Species from Negative Valve Overlap Reforming Using a Stochastic Reactor Model
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....
Bayesian Parameter Estimation for Heavy-Duty Vehicles
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. ....
Air Charge and Residual Gas Fraction Estimation for a Spark-Ignition Engine Using In-Cylinder Pressure
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....
Thermodynamic Potential of Electrical Turbocharging for the Case of Small Passenger Car ICE under Steady Operation
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....
A Study on the Refinement of Turbulence Intensity Prediction for the Estimation of In-Cylinder Pressure in a Spark-Ignited Engine
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....
A 1-D Platform to Simulate the Effects of Dedicated EGR on SI Engine Combustion
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....
Phenomenological Autoignition Model for Diesel Sprays Using Reduced Chemical Kinetics and a Characteristic Scalar Dissipation Rate
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 ....
A Fully-Analytical Fuel Consumption Estimation for the Optimal Design of Light- and Heavy-Duty Series Hybrid Electric Powertrains
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....
Validation of an Organic Rankine Cycle Simulation Tool against European Stationary Cycle Test Modes
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....
1D-3D Coupled Simulation of the Fuel Spray Propagation Inside the Air-Box of a Moto3 Motorbike: Analysis of Spray Targeting and Injection Timing
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 ....
Modeling and Numerical Investigation of Auto-Ignition and Megaknock in Boosted Gasoline Engines
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....
Influence of Binary CNG Substitute Composition on the Prediction of Burn Rate, Engine Knock and Cycle-to-Cycle Variations
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 ....
Development and Validation of a Quasi-Dimensional Dual Fuel (Diesel – Natural Gas) Combustion Model
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....
Advanced Predictive Diesel Combustion Simulation Using Turbulence Model and Stochastic Reactor Model
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....
Studying the Effect of the Flame Passage on the Convective Heat Transfer in a S.I. Engine
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....
A 1D/Quasi-3D Coupled Model for the Simulation of I.C. Engines: Development and Application of an Automatic Cell-Network Generator
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....
Fast 2-D Heat Transfer Model for Computing Internal Temperatures in Automotive Turbochargers
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....
Development of a Computationally Efficient Progress Variable Approach for a Direct Injection Stochastic Reactor Model
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-....
Control-Oriented Modeling of Soot Emissions in Gasoline Partially Premixed Combustion with Pilot Injection
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