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2017-08-16 ...
  • August 16, 2017 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
The improved efficiencies of the modern diesel engine have led to its increased use within the mobility industry. The vast majority of these diesel engines employ a high-pressure common rail fuel injection system to increase the engine's fuel-saving potential, emissions reduction, and overall performance. This one-day seminar will begin with a review of the basic principles of diesel engines and fuel injection systems. Diesel and alternative fuels will be discussed, followed by current and emerging diesel engine applications.
2017-04-05 ...
  • April 5-6, 2017 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • October 3-4, 2017 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
As diesel engines become more popular, a fundamental knowledge of diesel technology is critical for anyone involved in the diesel engine support industry. This course will explain the fundamental technology of diesel engines starting with a short but thorough introduction of the diesel combustion cycle, and continue with aspects of engine design, emission control design, and more. An overview of developing technologies for the future with a comprehensive section on exhaust aftertreatment is also included. The text, Diesel Emissions and Their Control, authored by Magdi Khair and W. Addy Majewski is included with the seminar.
2017-04-04
Event
This session focuses on fuel injection, combustion, controls, performance and emissions of SI engines fueled with gaseous fuels such as methane, natural gas (NG), biogas, producer gas, coke oven gas, hydrogen, or hydrogen-NG blends. Papers on Diesel-NG or diesel-hydrogen dual-fuel engines will also be accepted in this session.
2017-04-04
Event
Mixed mode with auto ignition but inhomogeneous charge. Injection-controlled but with EOI before SOC. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and PPC injection strategies are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are encouraged to be submitted into PFL110 or PFL120 modeling sessions.
2017-04-04
Event
The session covers advances in the development and application of models and tools involved in multi-dimensional engine modeling: advances in chemical kinetics, combustion and spray modeling, turbulence, heat transfer, mesh generation, and approaches targeting improved computational efficiency. Papers employing multi-dimensional modeling to gain a deeper understanding of processes related to turbulent transport, transient phenomena, and chemically reacting, two-phase flows are also encouraged.
2017-04-04
Event
This session is devoted to experimental and computational work in the area of fuel injection systems and sprays. Topics include: spray characterization, cavitation, multi-phase jet modeling, CFD models for spray processes, wall films and impingement, hydraulic circuit analysis, and dissolved gas effects. Studies of both gasoline and diesel fuel sprays and fuel injection equipment are encouraged.
2016-11-16
Journal Article
2016-01-9048
Martin Theile, Egon Hassel, Dominique Thévenin, Bert Buchholz, Karsten Michels, Martin Hofer
Abstract Since the mechanisms leading to cyclic combustion variabilities in direct injection gasoline engines are still poorly understood, advanced computational studies are necessary to be able to predict, analyze and optimize the complete engine process from aerodynamics to mixing, ignition, combustion and heat transfer. In this work the Scale-Adaptive Simulation (SAS) turbulence model is used in combination with a parameterized lagrangian spray model for the purpose of predicting transient in-cylinder cold flow, injection and mixture formation in a gasoline engine. An existing CFD model based on FLUENT v15.0 [1] has been extended with a spray description using the FLUENT Discrete Phase Model (DPM). This article will first discuss the validation of the in-cylinder cold flow model using experimental data measured within an optically accessible engine by High Speed Particle Image Velocimetry (HS-PIV).
2016-11-08
Technical Paper
2016-32-0001
Franz Winkler, Roland Oswald, Oliver Schoegl, Nigel Foxhall
Abstract High performance engines are used in many different powersports applications. In several of these applications 2-stroke engines play an important role. The direct injection technology is a key technology for 2-stroke engines to fulfill both the customers’ request for high power and the environmental requirements concerning emissions and efficiency. As the load spectrum differs from one application to the other, it was interesting to find out if different injection technologies can answer the needs for different applications more efficiently regarding performance but also economic targets. Therefore, the results of the BRP Rotax 600 cm3 E-TEC (direct injection system) engine are compared to the same base engine but adopted with the LPDI (low pressure direct injection) technology developed by IVT at Graz University of Technology. The systems were compared on the engine testbench over 17 rpm / load points representing different product usage profiles.
2016-11-08
Technical Paper
2016-32-0068
Joel Prince Lobo, James Howard Lee, Eric Oswald, Spenser Lionetti, Robert Garrick
Abstract The performance and exhaust emissions of a commercially available, propane fueled, air cooled engine with Electronic Fuel Injection (EFI) were investigated by varying relative Air to Fuel Ratio (λ), ignition timing, and Compression Ratio (CR). Varying λ and ignition timing was accomplished by modifying the EFI system using TechniCAL Industries’ engine development software. The CR was varied through using pistons with different bowl sizes. Strong relationships were recorded between λ and ignition timing and the resulting effect these parameters have on engine performance and emissions. Lean operation (λ > 1) has the potential to significantly reduce NOx production (110 g/kW-hr down to 5 g/kW-hr). Unfortunately, it also reduces engine torque by up to an order of magnitude (31 Nm down to 3 Nm).
2016-11-08
Technical Paper
2016-32-0064
Keiya Nishida, Takeru Matsuo, Kang Yang, Youichi Ogata, Daisuke Shimo
Abstract The injection amount per stage in a multiple injection strategy is smaller than a conventional single-stage injection. In this paper, the effect of the injection amount (0.27mg, 0.89mg, 2.97mg) under 100MPa injection pressure and the effect of injection pressure (100MPa, 150MPa, 170MPa) under different injection amounts (0.27mg, 2.97mg) on the spray and mixture formation characteristics were studied by analyzing the vapor/liquid phase concentration distributions obtained under various conditions via using the tracer LAS technique. The spray was injected into a high-pressure and high-temperature constant volume vessel by using a single-hole nozzle with a diameter 0.133mm. The higher the injection pressure with a smaller injection amount is, the shorter the spray tip penetration and leaner air-fuel mixture occur. The combustion processes had been examined by a high-speed video camera with the two-color pyrometry method.
2016-11-08
Technical Paper
2016-32-0062
Yusuke Miyata
Abstract Recently, large market of industrial machinery is formed across Asian countries due to the mechanization of industries. In China and India, where further economic growth is expected, stricter exhaust emissions regulations are phased in for industrial diesel engines with the rise of environmental consciousness. On the other hand, high durability, low fuel consumption and low cost are earnestly requested to those engines. In this paper, we introduce the techniques that we optimized fuel injection systems and both intake and exhaust systems to achieve low-fuel consumption, low-exhaust emissions and high-durability at the same time.
2016-11-08
Technical Paper
2016-32-0081
Giovanni Vichi, Michele Becciani, Isacco Stiaccini, Giovanni Ferrara, Lorenzo Ferrari, Alessandro Bellissima, Go Asai
Abstract For the development of a very high efficiency engine, the continuous monitoring of the engine operating conditions is needed. Moreover, the early detection of engine faults is fundamental in order to take appropriate corrective actions and avoid malfunctioning and failures. The in-cylinder pressure is the most direct parameter associated to the engine thermodynamic cycle. The cost and the intrusiveness of the dynamic pressure sensor and the harsh operating condition that limits its life-time, make the direct measurement of the in-cylinder pressure not suitable for mass production applications. Consequently, research is oriented on the measurement of physical phenomena linked to the thermodynamic cycle to obtain useful information for the ICE control.
2016-11-08
Journal Article
2016-32-0065
Yoshinori Nakao, Yota Sakurai, Atsushi Hisano, Masahito Saitou, Masahide Kazari, Takahito Murase, Kozo Suzuki
In port injection, it is difficult to control in-cylinder fuel supply of each cycle in a transient state as cold start (in this paper, cold start is defined as several cycles from cranking at low engine temperature). Hence, THC, which is one of regulated emission gases, is likely to increase at cold start. As one of THC emission reduction approaches at cold start, the optimization of fuel injection specifications (including injection position and spray diameter) is expected to reduce THC emission. Setting injection position as downstream position is expected to secure the in-cylinder fuel supply amount at cold start because of small fuel adhesion amount on an intake port wall and a short distance between the injection position and in-cylinder. The position injection contributes to reduction of THC emission due to elimination of misfire.
2016-11-08
Journal Article
2016-32-0080
Christian Steinbrecher, Haris Hamedovic, Andreas Rupp, Thomas Wortmann
Abstract Engine management systems combined with fuel injectors allow a precise fuel metering for a robust combustion process. Stricter emission legislations increase the requirements for these port fuel injection systems (PFI), whereas the price is still the main driver in the emerging low cost 2-wheeler market. Therefore, a holistic mechatronic approach is developed by Bosch, which allows an improved fuel metering over life time and furthermore provides new possibilities for diagnosis without changing the injector itself. This example of an intelligent software solution provides the possibility to further improve the accuracy of the fuel metering of an injector. By use of the information contained in the actuation voltage and current, the opening and closing times of the injector are derivable.
2016-11-03
Magazine
SAE Convergence 2016 Talk of the healthy aspects of disruption mingles with SAE's renowned technical emphasis to foster the auto industry's continuing evolution toward electrification and autonomy. The Battery Man Speaks The speed of progress in automotive lithium batteries has impressed AABC's Dr. Menahem Anderman. So has silicon-graphite anode technology development from Tesla and Panasonic. Industry 4.0: The smart factory arrives The plants that produce automotive systems and vehicles are increasingly employing intelligent systems, Big Data and advanced analytics to improve quality, safety and efficiency. Editorial: Promise of 48 volts is no shock Nissan unveils variable-compression-ratio ICE for 2018 Infiniti production model Optimizing engine oil warm-up strategies for 'real-world' driving In search of higher-energy-content batteries Making Multiphysics fast and convenient I.D.
2016-10-24
Event
This session is devoted to experimental and computational work in the area of fuel injection systems and sprays. Topics include: spray characterization, cavitation, multi-phase jet modeling, CFD models for spray processes, wall films and impingement, hydraulic circuit analysis, and dissolved gas effects. Studies of both gasoline and diesel fuel sprays and fuel injection equipment are encouraged.
2016-10-24
Event
This session is devoted to experimental and computational work in the area of fuel injection systems and sprays. Topics include: spray characterization, cavitation, multi-phase jet modeling, CFD models for spray processes, wall films and impingement, hydraulic circuit analysis, and dissolved gas effects. Studies of both gasoline and diesel fuel sprays and fuel injection equipment are encouraged.
2016-10-24
Journal Article
2016-01-9077
Patamaporn Chaikool, Kemwat Intravised, Prapan Patsin, Teerawat Laonapakul
Abstract Due to the need to reduce the use of fossil fuels, renewable fuels such as biodiesels are of interest. Biodiesels have different properties to pure diesel especially higher viscosity. This research studied the effect of using biodiesel on common-rail injection nozzles. Pure diesel and two biodiesel blends were supplied to the nozzles using a 1,800 bar injection pump with the same rotational speed of 2,200 rpm for 1,000 hours. The biodiesel blends were 5% palm oil based fatty acid methyl esters (FAME) biodiesel blended with 95% diesel (B5), and 10% palm oil based FAME biodiesel blended with 90% diesel (B10). Comparing with the petroleum-derived diesel (petrodiesel) fuel, the use of higher viscosity fuels such as B5 or B10 did not show the possibility to cause wearing around the injection nozzle holes.
2016-10-17
Technical Paper
2016-01-2232
Yves Compera, Bernhard Penkert, Georg Wachtmeister
Abstract This paper presents a phenomenological and semi-empirical simulation model to predict the injection rate of a diesel solenoid valve injector based on a few injection quantity measurements and indications (EMI). The approximate injection rate will be used as the input data for a subsequent model, which simulates the rate of heat release (ROHR). The injection rate model encompasses algebraic relations and differential equations deviating from the equations of motion and conservation, which describes the characteristic processes in the injector by using modular submodules. The process and its assumptions are explained step by step for each submodule. In addition, the injection rate predictions are presented and compared with experimental results arising from the selected reference solenoid valve injector.
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