Time-series Spectra Measurements from Initial Flame Kernel in a Spark-Ignition Engine
|
|
- Meagan Phillips
- 6 years ago
- Views:
Transcription
1 Time-series Spectra Measurements from Initial Flame Kernel in a Spark-Ignition Engine Nobuyuki Kawahara 1,*, Atsushi Inoue 1 and Eiji Tomita 1 1: Department of Mechanical Engineering, Okayama University, Okayama, Japan * correspondent author: kawahara@mech.okayama-u.ac.jp Abstract Time-series of emission spectra from initial flame kernel were investigated in a spark-ignition engine. Spectral lines due to OH*, CH*, and C 2 * are related to the air-fuel ratio (AFR), and we chose to focus on the relative intensities of the spectral lines of these species. A spark plug sensor with an optical fiber was developed for SI engines, and the emission intensities of OH*, CH*, and C 2 * radicals were investigated for several equivalence ratios and used to estimate the AFR from the ratios of the intensity of the different spectral lines. Time-series of emission spectra from initial kernel in the practical SI engine can be obtained by using the fiber-optic spark plug and the spectrometer with ICCD camera. Detected area obtained using the developed fiber-optic spark plug is investigated using high-speed visualization image from initial flame kernel development from the spark plug. AFR could be evaluated from the chemiluminescence intensity of C 2 * spectral line to intensity of the CH* spectral line due to monotonic increase with the fuel quantity increase. Cycle-to-cycle variation of ignition delay could be observed by the spectral line of CH*. 1. Introduction Mixture composition of the unburned charge fundamentally influences the combustion process in sparkignition engines, especially direct-injection spark-ignition (DISI) engines. Attention has been focused on spray-guided DISI (SG-DISI) engines to improve the thermal efficiency due to less wall-wetting fuel on the piston crown compared to current wall-guided DISI engines. The spray-guided system generates a stratified fuel concentration near the spark plugs because the fuel is aimed directly toward them. The mixture equivalence ratio near the spark plugs at the time of the spark discharge is especially important for the ignition to succeed. Moreover, evaluating the cycle-to-cycle fluctuation of combustion in direct-injection engines is desirable, as it is known that emission levels and thermal efficiency are related to fuel concentration in a spark-ignition engine. Cycle-to-cycle fluctuations of combustion in DISI engine are caused by inhomogeneity of fuel- air mixture around the spark plug, strong flow and higher turbulence inside cylinder, and much of exhaust gas recirculation(egr) in engine cylinder. Therefore, it is important to investigate the relationship between local air/fuel ratio (AFR) around the spark plug and the initial flame kernel development from the spark plug [1]. A number of experimental methods have been developed to study the propagation characteristics of turbulent premixed flames [2-6]. A high-speed camera can be used to visualize the flame propagation and structure within an engine cylinder using an optically accessible engine setup, and laser-induced fluorescence (LIF) measurements provide information on the local and instantaneous fuel concentrations and flame structure [2,7-8]. However, both the high-speed camera and LIF measurements can only be carried out in an optically accessible engine setup, which typically has a lower engine speed than a commercially available automobile engine, and the durability is reduced because of the optically transparent materials. Moreover, the cylinder wall temperature and cavity configuration of an optically accessible engine differ from those of a vehicle engine. Chemiluminescence measurements using an optical fiber have been employed to characterize flames [2, 9-13]. The methodology is reliable, both for automobile engine applications and for providing information on engine engineering. To apply this technique to in-cylinder flame propagation, a test engine must be modified to provide optical access to the combustion chamber. Kawahara et al. applied a Cassegrain reflector to a test engine to investigate the flame structure. Chemiluminescence spectral lines have been observed from OH* at 306 nm, CH* at 431 nm, and C 2 * at 516 nm using an intensified charge-coupled device (ICCD) [12]. The flame front propagation speed and the flame thickness can be estimated from the CH* chemiluminescence - 1 -
2 spectra [13]. In this study, time-series of emission spectra from initial flame kernel were investigated in a spark-ignition engine. Spectral lines due to OH*, CH*, and C 2 * are related to the AFR, and we chose to focus on the relative intensities of the spectral lines of these species. A spark plug sensor with an optical fiber was developed for SI engines [14], and the emission intensities of OH*, CH*, and C 2 * radicals were investigated for several equivalence ratios and used to estimate the AFR from the ratios of the intensity of the different spectral lines. Time-series of emission spectra from initial kernel in a SI engine can be obtained by using the fiber-optic spark plug and the spectrometer with ICCD camera. Detected area obtained using the developed fiber-optic spark plug is investigated using high-speed visualization image from initial flame kernel development from the spark plug. Estimation of AFR measured by developed system is determined using homogeneous mixture in practical spark-ignition engine. 2. Experimental apparatus A schematic diagram of the experimental set-up is shown in Fig. 1. A four-stroke spark-ignition engine with a single cylinder was used to test our measurement technique. The bore and stroke were 96.0 and 62.1 mm, respectively, and the compression ratio was 12.0:1. Gasoline was injected into the intake port. The AFR is measured using O2 sensor in the exhaust pipe. A change in injection duration altered the A/F ratio. The engine speed was set at 7,000 rpm. The crank angle and top dead center (TDC) from a rotary encoder were used to change the spark and port-injection timing, and were recorded by the A/D converter. The in-cylinder pressure was measured with a pressure transducer set in the cylinder head. We developed M12- and M14-thread spark plug sensors with optical fibers to provide measurements. The spark plug sensors are shown in Fig. 2. Developing instrumentation for measuring the flame propagation characteristics within automobile engines is the goal of this work. It is possible to detect the light that is emitted from the flame near the spark plug during combustion by exchanging the standard spark plug for one with an optical fiber sensor fitted. The optical set-up consisted of a sapphire window, which is highly durable, and an optical fiber to relay the signal. Only spark plugs with an M14 thread could have an optical fiber that is protected from stress, as there was insufficient space with the M12 or smaller spark plugs to insert a probe, and instead the optical fiber must be directly installed. The optical fiber (Mitsubishi cable industries: STU800G) used had a numerical aperture of The emitted light was measured using a spectrometer equipped with an ICCD (Andor: SR303i and Andor Tech. DH340). Light emitted from the flame or reaction zone was collected by the optical fiber and transferred to the spectrometer slit. To obtain chemiluminescence spectra for wavelengths in the range nm, a grating with 150 lines per mm was used. The wavelength resolution was 1.0 nm. A mercury-vapor lamp and a He Ne laser were used for wavelength calibration. By gating the intensifier synchronously with the engine, it was possible to collect the emitted light at specific crank angles. This made it possible to obtain an ensemble view of the emission spectra as a function of time. Moreover, time-series of emission spectra can be obtained using fast kinetic modes of ICCD. During these experiments, the cylinder pressure was recorded every 0.5 crank angle degree (CAD). 3. Experimental results Developed fiber-optic spark plug used standard optical fiber and sapphire window. Therefore the flame emission within the numerical aperture of optical fiber was detected. Detected area obtained using the developed fiber-optic spark plug should be investigated using high-speed visualization image from initial flame kernel development from the spark plug. In this experiment, a specially designed single-cylinder compression expansion machine (CEM) that could only be fired once was used as engine experiment. The CEM was equipped with quartz window and a flat cylinder head with a 78-mm bore, a stroke of 85 mm, and compression ratio of 9; we could observe only a single combustion cycle in one experimental run. The CEM had one intake valve, and the exhaust gas was drawn out by a vacuum pump through the inlet valve following the experiment. Multi-hole injector is set on cylinder head for spray-guided DISI system. Iso
3 octane was used as fuel. Fig. 1 Experimental set-up Fig.2 Spark-plug sensor with optical fiber Figure 3 show the time-series of emission spectra from initial flame kernel obtained by using developed fiber-optic spark plug. Chemiluminescence was analyzed using a spectrometer equipped with an ICCD. By synchronizing the gating of the intensifier with the engine, we were able to collect light in time-series. The chemiluminescence intensities of the OH*, CH*, and C 2 * spectral lines were clearly observed at 306 nm, 431 nm, and 516 nm. OH* can be detected until 5.13 ms after the spark timing, on the other hand, CH* and C 2 * were detected until around 3.0 ms. CH* and C 2 * were formed inside the flame reaction zone of initial flame kernel, however, OH* can be survived inside burned gas region. In order to understand the detected area of developed fiber-optic spark plug, high-speed visualization images were captured with flame emission spectra simultaneously. Figure 4 showed flame emission spectra at 2.73 and 4.10 ms after the spark timing and visualized flame images. Red circles in images showed the detected area in consideration with numerical aperture of optical fiber. At 2.73 ms after the spark timing, the chemiluminescence intensities of the OH*, CH*, and C 2 * spectral lines were clearly observed at 306 nm, 431 nm, and 516 nm. Initial flame kernel arrived at the detected area of the developed fiber-optic spark plug. OH*, CH*, and C 2 * were formed in flame thickness of initial flame kernel. At 4.10 ms, OH* emission line and broadband emission spectra from 350 to 600 ns in wavelength were detected. At this timing, premixed flame already passes through the detected area. Broadband emission spectra from 350 to 600 ns in wavelength is attributed to CO-O - 3 -
4 th 17 International Symposium on Applications of Laser Techniques to Fluid Mechanics recombination [15], which occurs in the region of burned gas area due to final oxidation. Fig. 3 Time-series of emission spectra from initial flame kernel 10mm ms ms Fig. 4 Simultaneous measurement of emission spectra and high-speed visualization of initial flame kernel. -4-
5 Next, estimation of AFR measured by developed system is determined using homogeneous mixture in practical spark-ignition engine. Figure 5 shows the time-series of flame spectra of chemiluminescence in the practical SI engine. Experiments were done at an engine speed of 7,000 rpm, an A/F ratio of 14.7, and throttle position of 20 %. The spark timing was 58 before TDC (BTDC). The flame spectrum of OH*, CH* and C 2 * could be detected around 0.5 ms after spark timing. These spectrum intensities increased with the CA, and CH* and C 2 * reached a peak around 0.8msecond after spark timing. After these periods, the CO-O recombination spectrum at 300~600 nm was observed. When the flame passed the measurement location, no significant noise source was observed, which means that this method detects light only from the flame front of initial flame kernel. We did not see any background noise attributable to the spark before the light from the flame front arrived. Fig. 5 Time-series of emission spectra of chemiluminescence in a spark-ignition engine Figure 6 shows the relationship between preset AFR and intensity ratio of C 2 */CH* from emission spectra of initial flame kernel. We propose to use the ratio of the intensity of the C 2 * spectral line to the intensity of the CH* spectral line for AFR evaluation, as the CH* and C 2 * spectral lines could be observed at the flame front of initial flame kernel. The available time period to observe the chemiluminescence intensity of the OH* spectral lines is therefore longer than that for CH*. The ratio of the intensity of the C 2 * spectral line to the intensity of the CH* spectral line decreased monotonically with the AFR, and so we can determine the AFR based on this metric by exploiting a time series of spectra. Figure 7 shows the cycle-to cycle variation of ignition delay by the comparison with time-series spectra and rate of heat release (ROHR). This experiment implemented under the same conditions, and we could observe two types of spectra. One is possible to observe radical emissions from forth timing data (0.576 ms after spark timing). The other is possible to observe radical emissions from fifth timing data (0.768 ms after spark timing). Under earlier timing that can observe radical emissions, the start timing of ROHR is also early timing. Therefore, we can evaluate the cycle-to-cycle variation of ignition delay by observing emission spectra from initial flame kernel using the developed spark-plug sensor
6 Fig.6 Relationship between preset AFR and intensity ratio of C 2 */CH*. θ Fig. 7 Cycle-to cycle variation of ignition delay by the comparison with time-series spectra and rate of heat release (ROHR) 4. Conclusions Time-series of emission spectra from initial flame kernel were investigated in a spark-ignition engine. A spark plug sensor with an optical fiber was developed for SI engines, and the emission intensities of OH*, CH*, and C 2 * radicals were investigated for several AFR and used to estimate the AFR from the ratios of the intensity of the different spectral lines. These results can be summarized as follows: (1) The spark plug sensor with optical fiber can be applied to practical engine under the high engine speed of 7000 rpm and can observe flame kernel characteristics such as radicals emission of OH*, CH* and C 2 *. (2) The AFR could be evaluated from the chemiluminescence intensity of C 2 * spectral line to intensity of the CH* spectral line due to monotonic increase with the fuel quantity increase. (3) Cycle-to-cycle variation of ignition delay could be observed by the spectral line of CH*
7 References 1. Heywood, J.B., Internal Combustion Engine Fundamentals, McGraw-Hill, Inc., (1998). 2. H. Zhao, and N. Ladommatos, Engine Combustion Instrumentation and Diagnostics, Society of Auto Motive Engineers, Inc.,(2001) 3. Bowditch, F.W., A New Tool for Combustion Research: A Quartz Piston Engine, SAE Paper No.150B,(1960) 4. Nakanishi, K., Hirano, T., Inoue, T., and Ohigashi, S., The Effects of Charge Dilution on Combustion and Its Improvement-Flame Photograph Study, SAE Paper No , (1975) 5. Bates, S., Flame Imaging Studies of Cycle-by-Cycle Combustion Variation in an SI Four-Stroke Engine, SAE Paper No , (1989) 6. Aleiferis, P.G., Taylor, A.M.K.P., Whitelaw, J.H., Ishii, K, Urata, Y., Cyclic Variation of Initial Flame Kernel Growth in a Honda VTEC-E Lean-Burn Spark-Ignition Engine, SAE Paper No (2001) 7. Brian P, David L.R, Volker S, High-speed imaging analysis of misfires in a spray-guided direct injection engine, Proc. of Combustion Institute, Volume 33, pp (2011) 8. R.S. Barlow, G.-H. Wang, P. Anselmo-Filho, M.S. Sweeney, S. Hochgreb, Application of Raman/Rayleigh/LIF diagnostics in turbulent stratified flames, Proc. of Combustion Institute, Volume 32, pp (2009) 9. Witze, P., Hall, M., and Wallace, J., Fiber-Optic Instrumented Spark Plug for Measuring Early Flame Development in Spark Ignition Engines, SAE paper No , (1988) 10. Spicher, U., Schmitz, G. and Kollmeiner, H., Application of a New Optical Fiber Technique for Flame Propagation Diagnostics in IC Engines, SAE Paper No , (1988) 11. Y.Hardalupas, M.Orain, C.S. Panoutsos, A.M.K.P Taylor, Jimmy Olofsson, Hans Seyfried, Mattias Richter, Johan Hult, Marcus Aldén, Fredrik Hermann, Jens Klingmann, Chemiluminescence sensor for local equivalence ratio of reacting of fuel and air (FLAMESEEK), Applied Thermal Engineering, Volume 24, Issues 11-12, pp (2004) 12. Kawahara, N., Tomita, E., Arimoto, S., Ikeda, Y., Nishiyama, A., In-spark-plug Sensor for Analyzing the Initial Flame and Its Structure in an SI Engine, SAE Paper No (2005) 13. Kawahara, N., Tomita, E., Arimoto, S., Ikeda, Y., Nishiyama, A., Measurement of Flame Propagation Characteristics in an SI Engine Using Micro-Local Chemiluminescence Technique, SAE Paper No (2005) 14. Kawahara, N., Inoue, A., and Tomita, E., In-Cylinder Observations of Chmiluminescence in Turbulent Premixed Flames Using a Spark Plug Sensor with an Optical Fiber, SAE Paper No , (2013) 15. Gaydon, A.G., The Spectroscopy of Flames, Chapman and Hall, (1974)
Proposal to establish a laboratory for combustion studies
Proposal to establish a laboratory for combustion studies Jayr de Amorim Filho Brazilian Bioethanol Science and Technology Laboratory SCRE Single Cylinder Research Engine Laboratory OUTLINE Requirements,
More informationVISUALIZATION OF AUTO-IGNITION OF END GAS REGION WITHOUT KNOCK IN A SPARK-IGNITION NATURAL GAS ENGINE
Journal of KONES Powertrain and Transport, Vol. 17, No. 4 21 VISUALIZATION OF AUTO-IGNITION OF END GAS REGION WITHOUT KNOCK IN A SPARK-IGNITION NATURAL GAS ENGINE Eiji Tomita, Nobuyuki Kawahara Okayama
More informationOptical methods for combustion research
KCFP Södertälje May 8, 2008 Optical methods for combustion research Mattias Richter Associate Professor Division of Combustion, Sweden Tolvan Tolvansson, 2007 Johannes Lindén, Division of Combustion Chemiluminescence
More informationVariations of Exhaust Gas Temperature and Combustion Stability due to Changes in Spark and Exhaust Valve Timings
Variations of Exhaust Gas Temperature and Combustion Stability due to Changes in Spark and Exhaust Valve Timings Yong-Seok Cho Graduate School of Automotive Engineering, Kookmin University, Seoul, Korea
More informationHomogeneous Charge Compression Ignition combustion and fuel composition
Loughborough University Institutional Repository Homogeneous Charge Compression Ignition combustion and fuel composition This item was submitted to Loughborough University's Institutional Repository by
More informationNatural Gas fuel for Internal Combustion Engine
Natural Gas fuel for Internal Combustion Engine L. Bartolucci, S. Cordiner, V. Mulone, V. Rocco University of Rome Tor Vergata Department of Industrial Engineering Outline Introduction Motivations and
More informationMarc ZELLAT, Driss ABOURI, Thierry CONTE and Riyad HECHAICHI CD-adapco
16 th International Multidimensional Engine User s Meeting at the SAE Congress 2006,April,06,2006 Detroit, MI RECENT ADVANCES IN SI ENGINE MODELING: A NEW MODEL FOR SPARK AND KNOCK USING A DETAILED CHEMISTRY
More informationIR analysis of diesel combustion in a transparent Euro5 diesel engine
IR analysis of diesel combustion in a transparent Euro5 diesel engine Christoph Allouis 1, Ezio Mancaruso 2, Luigi Sequino 2, Bianca M. Vaglieco 2 1. Institute of Research on Combustion - C.N.R., Napoli
More informationTechnical Papers and Articles
Technical Unburned Gas Temperature Measurement in an SI Engine Using Fiber-Optic Laser Interferometry Nobuyuki Kawahara, Eiji Tomita, Kenji Ohnishi, Kazuhiro Goto INTRODUCTION METHOD OF UNBURNED GAS TEMPERATURE
More informationDownloaded from SAE International by Brought To You Michigan State Univ, Thursday, April 02, 2015
High-Speed Flow and Combustion Visualization to Study the Effects of Charge Motion Control on Fuel Spray Development and Combustion Inside a Direct- Injection Spark-Ignition Engine 2011-01-1213 Published
More informationNormal vs Abnormal Combustion in SI engine. SI Combustion. Turbulent Combustion
Turbulent Combustion The motion of the charge in the engine cylinder is always turbulent, when it is reached by the flame front. The charge motion is usually composed by large vortexes, whose length scales
More informationINFLUENCE OF FUEL TYPE AND INTAKE AIR PROPERTIES ON COMBUSTION CHARACTERISTICS OF HCCI ENGINE
ENGINEERING FOR RURAL DEVELOPMENT Jelgava, 23.-24.5.213. INFLUENCE OF FUEL TYPE AND INTAKE AIR PROPERTIES ON COMBUSTION CHARACTERISTICS OF HCCI ENGINE Kastytis Laurinaitis, Stasys Slavinskas Aleksandras
More informationFlame Speed Measurement of a Racing Engine by IR Method and Chemiluminescence Method
Lisbon, Portugal, 7-1 July, 28 Flame Speed Measurement of a Racing Engine by IR Method and Chemiluminescence Method Yuji Ikeda 1, Atsushi Nishiyama 2, Thierry Baritaud 3 1: Imagineering, Inc., Welv Rokko
More informationINFLUENCE OF INTAKE AIR TEMPERATURE AND EXHAUST GAS RECIRCULATION ON HCCI COMBUSTION PROCESS USING BIOETHANOL
ENGINEERING FOR RURAL DEVELOPMENT Jelgava, 2.-27..216. INFLUENCE OF INTAKE AIR TEMPERATURE AND EXHAUST GAS RECIRCULATION ON HCCI COMBUSTION PROCESS USING BIOETHANOL Kastytis Laurinaitis, Stasys Slavinskas
More informationSPECTROSCOPIC DIAGNOSTIC OF TRANSIENT PLASMA PRODUCED BY A SPARK PLUG *
SPECTROSCOPIC DIAGNOSTIC OF TRANSIENT PLASMA PRODUCED BY A SPARK PLUG B. HNATIUC 1, S. PELLERIN 2, E. HNATIUC 1, R. BURLICA 1, N. CERQUEIRA 2, D. ASTANEI 1 1 Faculty of Electrical Engineering, Technical
More informationETHANOL AND DIESEL FUEL IN EURO5 SINGLE CYLINDER RESEARCH ENGINE
ETHANOL AND DIESEL FUEL IN EURO5 SINGLE CYLINDER RESEARCH ENGINE E. Mancaruso, B.M. Vaglieco e.mancaruso@im.cnr.it Istituto Motori CNR, Via G. Marconi, 8, 8125, Naples, Italy Abstract Experiments were
More informationInfluence of Fuel Injector Position of Port-fuel Injection Retrofit-kit to the Performances of Small Gasoline Engine
Influence of Fuel Injector Position of Port-fuel Injection Retrofit-kit to the Performances of Small Gasoline Engine M. F. Hushim a,*, A. J. Alimin a, L. A. Rashid a and M. F. Chamari a a Automotive Research
More informationModule7:Advanced Combustion Systems and Alternative Powerplants Lecture 32:Stratified Charge Engines
ADVANCED COMBUSTION SYSTEMS AND ALTERNATIVE POWERPLANTS The Lecture Contains: DIRECT INJECTION STRATIFIED CHARGE (DISC) ENGINES Historical Overview Potential Advantages of DISC Engines DISC Engine Combustion
More informationEffects of Pre-injection on Combustion Characteristics of a Single-cylinder Diesel Engine
Proceedings of the ASME 2009 International Mechanical Engineering Congress & Exposition IMECE2009 November 13-19, Lake Buena Vista, Florida, USA IMECE2009-10493 IMECE2009-10493 Effects of Pre-injection
More informationTECHNICAL PAPER FOR STUDENTS AND YOUNG ENGINEERS - FISITA WORLD AUTOMOTIVE CONGRESS, BARCELONA
TECHNICAL PAPER FOR STUDENTS AND YOUNG ENGINEERS - FISITA WORLD AUTOMOTIVE CONGRESS, BARCELONA 2 - TITLE: Topic: INVESTIGATION OF THE EFFECTS OF HYDROGEN ADDITION ON PERFORMANCE AND EXHAUST EMISSIONS OF
More informationInternational Journal of Scientific & Engineering Research, Volume 7, Issue 8, August-2016 ISSN
ISSN 2229-5518 2417 Experimental Investigation of a Two Stroke SI Engine Operated with LPG Induction, Gasoline Manifold Injection and Carburetion V. Gopalakrishnan and M.Loganathan Abstract In this experimental
More informationParticle Formation and Emissions from Dual Fueled CNG DI and Gasoline PFI SI Research Engine
Particle Formation and Emissions from Dual Fueled CNG DI and Gasoline PFI SI Research Engine F. Catapano, S. Di Iorio, P. Sementa, B. M. Vaglieco Istituto Motori CNR b.m.vaglieco@im.cnr.it Abstract Compressed
More informationThe Effects of Chamber Temperature and Pressure on a GDI Spray Characteristics in a Constant Volume Chamber
한국동력기계공학회지제18권제6호 pp. 186-192 2014년 12월 (ISSN 1226-7813) Journal of the Korean Society for Power System Engineering http://dx.doi.org/10.9726/kspse.2014.18.6.186 Vol. 18, No. 6, pp. 186-192, December 2014
More informationCONTROLLING COMBUSTION IN HCCI DIESEL ENGINES
CONTROLLING COMBUSTION IN HCCI DIESEL ENGINES Nicolae Ispas *, Mircea Năstăsoiu, Mihai Dogariu Transilvania University of Brasov KEYWORDS HCCI, Diesel Engine, controlling, air-fuel mixing combustion ABSTRACT
More informationInternal Combustion Optical Sensor (ICOS)
Internal Combustion Optical Sensor (ICOS) Optical Engine Indication The ICOS System In-Cylinder Optical Indication 4air/fuel ratio 4exhaust gas concentration and EGR 4gas temperature 4analysis of highly
More informationThe Effect of Volume Ratio of Ethanol Directly Injected in a Gasoline Port Injection Spark Ignition Engine
10 th ASPACC July 19 22, 2015 Beijing, China The Effect of Volume Ratio of Ethanol Directly Injected in a Gasoline Port Injection Spark Ignition Engine Yuhan Huang a,b, Guang Hong a, Ronghua Huang b. a
More informationMaximizing Engine Efficiency by Controlling Fuel Reactivity Using Conventional and Alternative Fuels. Sage Kokjohn
Maximizing Engine Efficiency by Controlling Fuel Reactivity Using Conventional and Alternative Fuels Sage Kokjohn Acknowledgments Direct-injection Engine Research Consortium (DERC) US Department of Energy/Sandia
More informationStudy of Performance and Emission Characteristics of a Two Stroke Si Engine Operated with Gasoline Manifold Injectionand Carburetion
Indian Journal of Science and Technology, Vol 9(37), DOI: 10.17485/ijst/2016/v9i37/101984, October 2016 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 Study of Performance and Emission Characteristics
More informationEffect of Tangential Grooves on Piston Crown Of D.I. Diesel Engine with Retarded Injection Timing
International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn : 2278-800X, www.ijerd.com Volume 5, Issue 10 (January 2013), PP. 01-06 Effect of Tangential Grooves on Piston Crown
More informationIn-Situ Fuel Concentration Measurement Using an IR Spark Plug Sensor by Laser Infrared Absorption Method - Application to a Rotary Engine-
In-Situ Fuel Concentration Measurement Using an IR Spark Plug Sensor by Laser Infrared Absorption Method - Application to a Rotary Engine- Nobuyuki Kawahara 1, Eiji Tomita 2, Kenta Hayashi 3, Michihiko
More informationControl of PCCI Combustion using Physical and Chemical Characteristics of Mixed Fuel
Doshisha Univ. - Energy Conversion Research Center International Seminar on Recent Trend of Fuel Research for Next-Generation Clean Engines December 5th, 27 Control of PCCI Combustion using Physical and
More informationEFFECTS OF INTAKE AIR TEMPERATURE ON HOMOGENOUS CHARGE COMPRESSION IGNITION COMBUSTION AND EMISSIONS WITH GASOLINE AND n-heptane
THERMAL SCIENCE: Year 2015, Vol. 19, No. 6, pp. 1897-1906 1897 EFFECTS OF INTAKE AIR TEMPERATURE ON HOMOGENOUS CHARGE COMPRESSION IGNITION COMBUSTION AND EMISSIONS WITH GASOLINE AND n-heptane by Jianyong
More informationRecent enhancement to SI-ICE combustion models: Application to stratified combustion under large EGR rate and lean burn
Recent enhancement to SI-ICE combustion models: Application to stratified combustion under large EGR rate and lean burn G. Desoutter, A. Desportes, J. Hira, D. Abouri, K.Oberhumer, M. Zellat* TOPICS Introduction
More informationAN EXPERIMENT STUDY OF HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION AND EMISSION IN A GASOLINE ENGINE
THERMAL SCIENCE: Year 2014, Vol. 18, No. 1, pp. 295-306 295 AN EXPERIMENT STUDY OF HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION AND EMISSION IN A GASOLINE ENGINE by Jianyong ZHANG *, Zhongzhao LI,
More informationSI engine combustion
SI engine combustion 1 SI engine combustion: How to burn things? Reactants Products Premixed Homogeneous reaction Not limited by transport process Fast/slow reactions compared with other time scale of
More informationFoundations of Thermodynamics and Chemistry. 1 Introduction Preface Model-Building Simulation... 5 References...
Contents Part I Foundations of Thermodynamics and Chemistry 1 Introduction... 3 1.1 Preface.... 3 1.2 Model-Building... 3 1.3 Simulation... 5 References..... 8 2 Reciprocating Engines... 9 2.1 Energy Conversion...
More informationREDUCTION OF EMISSIONS BY ENHANCING AIR SWIRL IN A DIESEL ENGINE WITH GROOVED CYLINDER HEAD
REDUCTION OF EMISSIONS BY ENHANCING AIR SWIRL IN A DIESEL ENGINE WITH GROOVED CYLINDER HEAD Dr.S.L.V. Prasad 1, Prof.V.Pandurangadu 2, Dr.P.Manoj Kumar 3, Dr G. Naga Malleshwara Rao 4 Dept.of Mechanical
More informationAvailable online Journal of Scientific and Engineering Research, 2018, 5(9): Research Article
Available online www.jsaer.com, 2018, 5(9):62-67 Research Article ISSN: 2394-2630 CODEN(USA): JSERBR A Study on Engine Performance and Emission Characteristics of LPG Engine with Hydrogen Addition Sung
More informationPrinciples of Engine Operation. Information
Internal Combustion Engines MAK 4070E Principles of Engine Operation Prof.Dr. Cem Soruşbay Istanbul Technical University Information Prof.Dr. Cem Soruşbay İ.T.Ü. Makina Fakültesi Motorlar ve Taşıtlar Laboratuvarı
More informationThe influence of thermal regime on gasoline direct injection engine performance and emissions
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS The influence of thermal regime on gasoline direct injection engine performance and emissions To cite this article: C I Leahu
More informationWe are IntechOpen, the first native scientific publisher of Open Access books. International authors and editors. Our authors are among the TOP 1%
We are IntechOpen, the first native scientific publisher of Open Access books 3,350 108,000 1.7 M Open access books available International authors and editors Downloads Our authors are among the 151 Countries
More informationThe Influence of Port Fuel Injection on Combustion Stability
28..9 Technical The Influence of Port Fuel Injection on Combustion Stability Shoichi Kato, Takanori Hayashida, Minoru Iida Abstract The demands on internal combustion engines for low emissions and fuel
More informationIntroduction to combustion
Introduction to combustion EEN-E005 Bioenergy 1 017 D.Sc (Tech) ssi Kaario Motivation Why learn about combustion? Most of the energy in the world, 70-80%, is produced from different kinds of combustion
More information8 th International Symposium TCDE Choongsik Bae and Sangwook Han. 9 May 2011 KAIST Engine Laboratory
8 th International Symposium TCDE 2011 Choongsik Bae and Sangwook Han 9 May 2011 KAIST Engine Laboratory Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion
More informationLaVision Automotive. Innovative Measurement Technologies
LaVision Automotive Innovative Measurement Technologies Focusing on Automotive Research & Development Optical Diagnostics for Automotive R&D Optical diagnostic technologies such as laser imaging and fiber
More informationFigure 1: The spray of a direct-injecting four-stroke diesel engine
MIXTURE FORMATION AND COMBUSTION IN CI AND SI ENGINES 7.0 Mixture Formation in Diesel Engines Diesel engines can be operated both in the two-stroke and four-stroke process. Diesel engines that run at high
More informationMODERN OPTICAL MEASUREMENT TECHNIQUES APPLIED IN A RAPID COMPRESSION MACHINE FOR THE INVESTIGATION OF INTERNAL COMBUSTION ENGINE CONCEPTS
MODERN OPTICAL MEASUREMENT TECHNIQUES APPLIED IN A RAPID COMPRESSION MACHINE FOR THE INVESTIGATION OF INTERNAL COMBUSTION ENGINE CONCEPTS P. Prechtl, F. Dorer, B. Ofner, S. Eisen, F. Mayinger Lehrstuhl
More informationDual Fuel Engine Charge Motion & Combustion Study
Dual Fuel Engine Charge Motion & Combustion Study STAR-Global-Conference March 06-08, 2017 Berlin Kamlesh Ghael, Prof. Dr. Sebastian Kaiser (IVG-RF), M. Sc. Felix Rosenthal (IFKM-KIT) Introduction: Operation
More informationFUEL IMPINGEMENT ANALYSIS OF FLASH-BOILING SPRAY IN A SPARK-IGNITION DIRECT-INJECTION ENGINE
FUEL IMPINGEMENT ANALYSIS OF FLASH-BOILING SPRAY IN A SPARK-IGNITION DIRECT-INJECTION ENGINE Hao CHEN 1, Min XU 1, David L.S. HUNG 1, 2, Jie YANG 1, Hanyang ZHUANG 2 1 School of Mechanical Engineering,
More informationPLIF Flow Visualization of Methane Gas Jet from Spark Plug Fuel Injector in a Direct Injection Spark Ignition Engine
PLIF Flow Visualization of Methane Gas Jet from Spark Plug Fuel Injector in a Direct Injection Spark Ignition Engine TAIB ISKANDAR MOHAMAD and HOW HEOY GEOK Department of Mechanical and Materials Engineering,
More informationModule 3: Influence of Engine Design and Operating Parameters on Emissions Lecture 14:Effect of SI Engine Design and Operating Variables on Emissions
Module 3: Influence of Engine Design and Operating Parameters on Emissions Effect of SI Engine Design and Operating Variables on Emissions The Lecture Contains: SI Engine Variables and Emissions Compression
More informationComparative performance and emissions study of a lean mixed DTS-i spark ignition engine operated on single spark and dual spark
26 IJEDR Volume 4, Issue 2 ISSN: 232-9939 Comparative performance and emissions study of a lean mixed DTS-i spark ignition engine operated on single spark and dual spark Hardik Bambhania, 2 Vijay Pithiya,
More informationPM Exhaust Characteristics from Diesel Engine with Cooled EGR
Proceedings of International Symposium on EcoTopia Science 07, ISETS07 (07) PM Exhaust Characteristics from Diesel Engine with Yutaka Tsuruta 1, Tomohiko Furuhata 1 and Masataka Arai 1 1. Department of
More informationis the crank angle between the initial spark and the time when about 10% of the charge is burned. θ θ
ME 410 Day 30 Phases of Combustion 1. Ignition 2. Early flame development θd θ 3. Flame propagation b 4. Flame termination The flame development angle θd is the crank angle between the initial spark and
More information1. INTRODUCTION 2. EXPERIMENTAL INVESTIGATIONS
HIGH PRESSURE HYDROGEN INJECTION SYSTEM FOR A LARGE BORE 4 STROKE DIESEL ENGINE: INVESTIGATION OF THE MIXTURE FORMATION WITH LASER-OPTICAL MEASUREMENT TECHNIQUES AND NUMERICAL SIMULATIONS Dipl.-Ing. F.
More informationCyclic Fluctuations of Charge Motion and Mixture Formation in a DISI Engine in Stratified Operation
ABSTRACT Cyclic Fluctuations of Charge Motion and Mixture Formation in a DISI Engine in Stratified Operation The processes of an internal combustion engine are subject to cyclic fluctuations, which have
More informationKul Internal Combustion Engine Technology. Definition & Classification, Characteristics 2015 Basshuysen 1,2,3,4,5
Kul-14.4100 Internal Combustion Engine Technology Definition & Classification, Characteristics 2015 Basshuysen 1,2,3,4,5 Definitions Combustion engines convert the chemical energy of fuel to mechanical
More information2.61 Internal Combustion Engines Spring 2008
MIT OpenCourseWare http://ocw.mit.edu 2.61 Internal Combustion Engines Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. Engine Heat Transfer
More informationEffects of ethanol unleaded gasoline blends on cyclic variability and emissions in an SI engine
Applied Thermal Engineering 25 (2005) 917 925 www.elsevier.com/locate/apthermeng Effects of ethanol unleaded gasoline blends on cyclic variability and emissions in an SI engine M.A. Ceviz *,F.Yüksel Department
More informationVISUALIZATION IN OF INSIDE CYLINDER PROCESSES IN GASOLINE DIRECT INJECTION ENGINE
Journal of KONES Internal Combustion Engines 2005, vol. 12, 1-2 VISUALIZATION IN OF INSIDE CYLINDER PROCESSES IN GASOLINE DIRECT INJECTION ENGINE Bronis aw Sendyka Cracow University of Technology Jana
More informationPIV, high-speed PLIF and chemiluminescence imaging for near-spark-plug investigations in IC engines
Institute of Physics Publishing Journal of Physics: Conference Series 45 (2006) 19 26 doi:10.1088/1742-6596/45/1/003 Second International Conference on Optical and Laser Diagnostics (ICOLAD 2005) PIV,
More informationLiquefied Petroleum Gas and Dimethyl Ether Compression Ignition Engine
Liquefied Petroleum Gas and Dimethyl Ether Compression Ignition Engine Kitae Yeom, Jinyoung Jang, Jungseo Park and Choongsik Bae Korea Advanced Institute of Science and Technology ABSTRACT The combustion
More informationGasoline HCCI engine with DME (Di-methyl Ether) as an Ignition Promoter
Gasoline HCCI engine with DME (Di-methyl Ether) as an Ignition Promoter Kitae Yeom, Jinyoung Jang, Choongsik Bae Abstract Homogeneous charge compression ignition (HCCI) combustion is an attractive way
More informationTHE INFLUENCE OF THE EGR RATE ON A HCCI ENGINE MODEL CALCULATED WITH THE SINGLE ZONE HCCI METHOD
CONAT243 THE INFLUENCE OF THE EGR RATE ON A HCCI ENGINE MODEL CALCULATED WITH THE SINGLE ZONE HCCI METHOD KEYWORDS HCCI, EGR, heat release rate Radu Cosgarea *, Corneliu Cofaru, Mihai Aleonte Transilvania
More informationRapid Meshing and Advanced Physical Modeling for Gasoline DI Engine Application
Rapid Meshing and Advanced Physical Modeling for Gasoline DI Engine Application R. Tatschl, H. Riediger, Ch. v. Künsberg Sarre, N. Putz and F. Kickinger AVL LIST GmbH A-8020 Graz AUSTRIA Gasoline direct
More informationSWIRL MEASURING EQUIPMENT FOR DIRECT INJECTION DIESEL ENGINE
SWIRL MEASURING EQUIPMENT FOR DIRECT INJECTION DIESEL ENGINE G.S.Gosavi 1, R.B.Solankar 2, A.R.Kori 3, R.B.Chavan 4, S.P.Shinde 5 1,2,3,4,5 Mechanical Engineering Department, Shivaji University, (India)
More informationCOMBUSTION in SI ENGINES
Internal Combustion Engines ME422 COMBUSTION in SI ENGINES Prof.Dr. Cem Soruşbay Internal Combustion Engines Combustion in SI Engines Introduction Classification of the combustion process Normal combustion
More informationINFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE UNBURNED FUEL IN DIESEL ENGINE
INFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE UNBURNED FUEL IN DIESEL ENGINE 1. UNIVERSITY OF RUSE, 8, STUDENTSKA STR., 7017 RUSE, BULGARIA 1. Simeon ILIEV ABSTRACT: The objective of this paper is to
More informationNUMERICAL INVESTIGATION OF EFFECT OF EXHAUST GAS RECIRCULATION ON COMPRESSIONIGNITION ENGINE EMISSIONS
ISSN (Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology An ISO 3297: 2007 Certified Organization, Volume 2, Special Issue
More informationExperimental investigation on influence of EGR on combustion performance in SI Engine
- 1821 - Experimental investigation on influence of EGR on combustion performance in SI Engine Abstract M. Božić 1*, A. Vučetić 1, D. Kozarac 1, Z. Lulić 1 1 University of Zagreb, Faculty of Mechanical
More informationMicroscopic Visualization of Liquid Column Break-up Process in Gasoline PFI Injector
Microscopic Visualization of Liquid Column Break-up Process in Gasoline PFI Injector Nobuyuki KAWAHARA *1, Eiji TOMITA *1, Mamoru SUMIDA *2 1: Department of Mechanical Engineering, Okayama University,
More informationEFFECT OF INJECTION ORIENTATION ON EXHAUST EMISSIONS IN A DI DIESEL ENGINE: THROUGH CFD SIMULATION
EFFECT OF INJECTION ORIENTATION ON EXHAUST EMISSIONS IN A DI DIESEL ENGINE: THROUGH CFD SIMULATION *P. Manoj Kumar 1, V. Pandurangadu 2, V.V. Pratibha Bharathi 3 and V.V. Naga Deepthi 4 1 Department of
More informationB. von Rotz, A. Schmid, S. Hensel, K. Herrmann, K. Boulouchos. WinGD/PSI, 10/06/2016, CIMAC Congress 2016 / B. von Rotz
Comparative Investigation of Spray Formation, Ignition and Combustion for LFO and HFO at Conditions relevant for Large 2-Stroke Marine Diesel Engine Combustion Systems B. von Rotz, A. Schmid, S. Hensel,
More informationCombustion. T Alrayyes
Combustion T Alrayyes Fluid motion with combustion chamber Turbulence Swirl SQUISH AND TUMBLE Combustion in SI Engines Introduction The combustion in SI engines inside the engine can be divided into three
More informationModifications on a Small Two Wheeler Two Stroke SI Engine for Reducing Fuel Consumption and Exhaust Emissions
RIO 5 - World Climate & Energy Event, 15-17 February 5, Rio de Janeiro, Brazil Modifications on a Small Two Wheeler Two Stroke SI Engine for Reducing Fuel Consumption and Exhaust Emissions Kunam Anji Reddy,
More informationUV-VISIBLE DIGITAL IMAGING OF SPLIT INJECTION IN A GASOLINE DIRECT INJECTION ENGINE
THERMAL SCIENCE: Year 2015, Vol. 19, No. 6, pp. 1873-1886 1873 UV-VISIBLE DIGITAL IMAGING OF SPLIT INJECTION IN A GASOLINE DIRECT INJECTION ENGINE by Simona Silvia MEROLA a,*, Adrian IRIMESCU a, Cinzia
More information4. With a neat sketch explain in detail about the different types of fuel injection system used in SI engines. (May 2016)
SYED AMMAL ENGINEERING COLLEGE (Approved by the AICTE, New Delhi, Govt. of Tamilnadu and Affiliated to Anna University, Chennai) Established in 1998 - An ISO 9001:2000 Certified Institution Dr. E.M.Abdullah
More informationAN EXPERIMENTAL STUDY ON THE EFFECTS OF EGR AND EQUIVALENCE RATIO ON CO AND SOOT EMISSIONS OF DUAL FUEL HCCI ENGINE
AN EXPERIMENTAL STUDY ON THE EFFECTS OF AND EQUIVALENCE RATIO ON CO AND SOOT EMISSIONS OF DUAL FUEL HCCI ENGINE M. R. KALATEH 1, M. GHAZIKHANI 1 1 Department of Mechanical Engineering, Ferdowsi University
More informationModelling Combustion in DI-SI using the G-equation Method and Detailed Chemistry: Emissions and knock. M.Zellat, D.Abouri, Y.Liang, C.
Modelling Combustion in DI-SI using the G-equation Method and Detailed Chemistry: Emissions and knock Realize innovation. M.Zellat, D.Abouri, Y.Liang, C.Kralj Main topics of the presentation 1. Context
More informationOverview & Perspectives for Internal Combustion Engine using STAR-CD. Marc ZELLAT
Overview & Perspectives for Internal Combustion Engine using STAR-CD Marc ZELLAT TOPICS Quick overview of ECFM family models Examples of validation for Diesel and SI-GDI engines Introduction to multi-component
More informationCOMBUSTION in SI ENGINES
Internal Combustion Engines MAK 493E COMBUSTION in SI ENGINES Prof.Dr. Cem Soruşbay Istanbul Technical University Internal Combustion Engines MAK 493E Combustion in SI Engines Introduction Classification
More informationEffects of intake air temperature on HCCI combustion and emissions with gasoline and n-heptane
Effects of intake air temperature on HCCI combustion and emissions with gasoline and n-heptane 1 by Jianyong ZHANG, Zhongzhao LI, Kaiqiang ZHANG, Xingcai LV, Zhen HUANG Key Laboratory of Power Machinery
More informationINVESTIGATION OF AUTO-IGNITION OF HEPTANE-CNG MIXTURE IN HCCI ENGINE. Firmansyah. Universiti Teknologi PETRONAS
INVESTIGATION OF AUTO-IGNITION OF HEPTANE-CNG MIXTURE IN HCCI ENGINE Firmansyah Universiti Teknologi PETRONAS OUTLINE INTRODUCTION OBJECTIVES METHODOLOGY RESULTS and DISCUSSIONS CONCLUSIONS HCCI DUALFUELCONCEPT
More informationC. DHANASEKARAN AND 2 G. MOHANKUMAR
1 C. DHANASEKARAN AND 2 G. MOHANKUMAR 1 Research Scholar, Anna University of Technology, Coimbatore 2 Park College of Engineering & Technology, Anna University of Technology, Coimbatore ABSTRACT Hydrogen
More informationSimulation of Performance Parameters of Spark Ignition Engine for Various Ignition Timings
Research Article International Journal of Current Engineering and Technology ISSN 2277-4106 2013 INPRESSCO. All Rights Reserved. Available at http://inpressco.com/category/ijcet Simulation of Performance
More informationISSN: ISO 9001:2008 Certified International Journal of Engineering and Innovative Technology (IJEIT) Volume 4, Issue 7, January 2015
Effect of Auxiliary Injection Ratio on the Characteristic of Lean Limit in Early Direct Injection Natural Gas Engine Tran Dang Quoc Department of Internal Combustion Engine School of Transportation Engineering,
More informationAuto-ignition of Premixed Methane/air Mixture in the Presence of Dust
25 th ICDERS August 2 7, 2015 Leeds, UK Auto-ignition of Premixed Methane/air Mixture in the Presence of Dust V.V. Leschevich, O.G. Penyazkov, S.Yu. Shimchenko Physical and Chemical Hydrodynamics Laboratory,
More informationDual Fuel Combustion an Applicable Technology for Mobile Application?
1 S C I E N C E P A S S I O N T E C H N O L O G Y Dual Fuel Combustion an Applicable Technology for Mobile Application? 10 th Conference Eco Mobility 2025plus Univ.Prof. Dr. Helmut Eichlseder Institute
More informationInfluence of ANSYS FLUENT on Gas Engine Modeling
Influence of ANSYS FLUENT on Gas Engine Modeling George Martinas, Ovidiu Sorin Cupsa 1, Nicolae Buzbuchi, Andreea Arsenie 2 1 CERONAV 2 Constanta Maritime University Romania georgemartinas@ceronav.ro,
More informationHongming Xu (Jaguar Cars) Miroslaw Wyszynski (University of Birmingham) Stan Golunski (Johnson Matthey)
Hongming Xu (Jaguar Cars) Miroslaw Wyszynski (University of Birmingham) Stan Golunski (Johnson Matthey) SAE Homogeneous Charge Compression Ignition Symposium 19-20 September 2005 ACKNOWLEDGEMENTS Contribution
More informationOptical Techniques in Gasoline Engine Performance and Emissions Development
Optical Techniques in Gasoline Engine Performance and Emissions Development TC GDI engines: analysis and development techniques to solve pre-ignition and soot formation issues Ernst Winklhofer AVL List
More informationEngine Heat Transfer. Engine Heat Transfer
Engine Heat Transfer 1. Impact of heat transfer on engine operation 2. Heat transfer environment 3. Energy flow in an engine 4. Engine heat transfer Fundamentals Spark-ignition engine heat transfer Diesel
More informationExperimental Investigation of Acceleration Test in Spark Ignition Engine
Experimental Investigation of Acceleration Test in Spark Ignition Engine M. F. Tantawy Basic and Applied Science Department. College of Engineering and Technology, Arab Academy for Science, Technology
More informationEXHAUST EMISSIONS OF 4 STROKE SPARK IGNITION ENGINE WITH INDIRECT INJECTION SYSTEM USING GASOLINE-ETHANOL FUEL
Vol. 04 No. 01, July 2017, Pages 44-49 EXHAUST EMISSIONS OF 4 STROKE SPARK IGNITION ENGINE WITH INDIRECT INJECTION SYSTEM USING GASOLINE-ETHANOL FUEL Mega Nur Sasongko 1, Widya Wijayanti 1, Fernando Nostra
More informationCombustion Properties of Alternative Liquid Fuels
1. Prologue Combustion Properties of Alternative Liquid Fuels 21 JULY 211 Cheng Tung Chong, Simone Hochgreb Content 1. Introduction 2. What s biodiesels 3. Burner design and experimental 4. Results - Flame
More informationENERGY CONVERSION IN A HYDROGEN FUELED DIESEL ENGINE: OPTIMIZATION OF THE MIXTURE FORMATION AND COMBUSTION
ENERGY CONVERSION IN A HYDROGEN FUELED DIESEL ENGINE: OPTIMIZATION OF THE MIXTURE FORMATION AND COMBUSTION PETER PRECHTL; FRANK DORER; FRANZ MAYINGER Lehrstuhl A für Thermodynamik, Technische Universität
More informationPublished in: First Biennial Meeting of the Scandinavian-Nordic Section of the Combustion Institute
HCCI Operation of a Multi-Cylinder Engine Tunestål, Per; Olsson, Jan-Ola; Johansson, Bengt Published in: First Biennial Meeting of the Scandinavian-Nordic Section of the Combustion Institute 21 Link to
More informationCHAPTER 8 EFFECTS OF COMBUSTION CHAMBER GEOMETRIES
112 CHAPTER 8 EFFECTS OF COMBUSTION CHAMBER GEOMETRIES 8.1 INTRODUCTION Energy conservation and emissions have become of increasing concern over the past few decades. More stringent emission laws along
More informationSatbir Singh and Rolf D. Reitz Engine Research Center, Department of Mechanical Engineering, University of Wisconsin, Madison
Comparison of Characteristic Time (), Representative Interactive Flamelet (RIF), and Direct Integration with Detailed Chemistry Combustion Models against Multi-Mode Combustion in a Heavy-Duty, DI Diesel
More informationEffects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors
Effects of Dilution Flow Balance and Double-wall Liner on NOx Emission in Aircraft Gas Turbine Engine Combustors 9 HIDEKI MORIAI *1 Environmental regulations on aircraft, including NOx emissions, have
More information