Lasers and Optical Diagnostics for Next Generation IC Engine Development: Ushering New Era of Engine Development

Researchers are trying to improve engine efficiencies and emission characteristics in an extremely challenging environment. This demands complying with ever-increasingly tightening emission norms and fuel economy norms globally, which are the prime forces driving the automotive industry globally. Optical diagnostic techniques have emerged as a valuable tool in development of engine powertrain and emission control technologies in last one decade. This chapter deals with variety of optical diagnostic techniques such as particle image velocimetry (PIV), phase Doppler interferometry (PDI) and endoscopy, applied to internal combustion (IC) engines. Laser based measurements in real time in the engine combustion chamber have ushered a new era of research for finding answers to some of the most intriguing in-cylinder processes, which were only speculated until recently. These optical diagnostic techniques have enabled engine researchers to sharpen their modeling tools using experimental data from realistic geometry engines firing under varying loads. Fuel-air mixing and combustion are mainly affected by in-cylinder air-flow and fuel spray characteristics. Air-flow structures developed inside the engine combustion chamber significantly influence the fuel-air mixing process. For validate this phenomenon, researchers investigated in-cylinder air-flow characteristics of motored engine using time-resolved tomographic particle imaging velocimetry (TPIV). Fuel spray characteristics could be determined using PDI, which provides information about droplet size distribution and 3D-velocity distributions. To gain visual access to the combustion process in a production engine’s combustion chamber at high loads, another optical diagnostic technique “engine endoscopy” can be used, which can enable spatial combustion visualization, soot distribution as well as temperature distribution.

[1]  Wolfgang Cartellieri,et al.  Fuel injection and combustion phenomena in a high speed DI diesel engine observed by means of endoscopic high speed photography , 1987 .

[2]  H. Hiroyasu,et al.  Structures of fuel sprays in diesel engines , 1990 .

[3]  Julien Lacoste,et al.  Characteristics of diesel sprays at high temperatures and pressures , 2006 .

[4]  Eiji Tomita,et al.  Ion current measurement in a homogeneous charge compression ignition engine , 2005 .

[5]  Juhun Song,et al.  Spray and combustion visualization of a direct-injection diesel engine operated with oxygenated fuel blends , 2006 .

[6]  Sang Yong Lee,et al.  APPLICATION OF HOUGH TRANSFORM TO IMAGE PROCESSING OF HEAVILY OVERLAPPED PARTICLES WITH SPHERICAL SHAPES , 2002 .

[7]  Rolf D. Reitz,et al.  Particle Image Velocimetry Measurements in the Piston Bowl of a DI Diesel Engine , 1994 .

[8]  Avinash Kumar Agarwal,et al.  Tomographic PIV Evaluation of In-Cylinder Flow Evolution and Effect of Engine Speed , 2016 .

[9]  Santiago Molina,et al.  Analysis methodology of diesel spray and flame by means of in-cylinder endoscopic imaging , 2000 .

[10]  W. Hentschel,et al.  Endoscopic 2D particle image velocimetry (PIV) flow field measurements in IC engines , 2002 .

[11]  V. Ganesan,et al.  Turbulent flow inside the cylinder of a Diesel engine — an experimental investigation using hot wire anemometer , 1990 .

[12]  Su Han Park,et al.  Effects of multiple-injection strategies on overall spray behavior, combustion, and emissions reduction characteristics of biodiesel fuel , 2011 .

[13]  Rolf D. Reitz,et al.  Investigation of spray characteristics from a low-pressure common rail injector for use in a homogeneous charge compression ignition engine , 2004 .

[14]  D. Michaelis,et al.  Investigation of the 3D flow field in an IC engine using tomographic PIV , 2013 .

[15]  Norimasa Iida,et al.  Effects of intake CO2 concentrations on fuel spray flame temperatures and soot formations , 2007 .

[16]  H. S. Yang,et al.  Topological flow evolutions in cylinder of a motored engine during intake and compression strokes , 2005 .

[17]  J. T. Turner,et al.  Velocity measurement inside a motored internal combustion engine using three-component laser Doppler anemometry , 2000 .

[18]  G. Faeth,et al.  Structure and breakup properties of sprays , 1995 .

[19]  Markus Raffel,et al.  Particle Image Velocimetry: A Practical Guide , 2002 .

[20]  R. Schodl,et al.  A Laser Dual-Beam Method for Flow Measurements in Turbomachines , 1974 .

[21]  Marcus Aldén,et al.  Investigation of the Fuel Distribution and the In-cylinder Flow Field in a Stratified Charge Engine Using Laser Techniques and Comparison with CFD-Modelling , 1999 .

[22]  Masahiro Ishida,et al.  Measurement of droplet size distribution in core region of high-speed spray by micro-probe L2F , 2008 .

[23]  Thomas W. Ryan,et al.  Injection Pressure and Intake Air Density Effects on Ignition and Combustion in a 4-Valve Diesel Engine , 1994 .

[24]  Avinash Kumar Agarwal,et al.  Spatial combustion analysis of biodiesel fueled engine using combustion chamber endoscopy and modeling , 2016 .

[25]  Ichiro Sakata,et al.  Development of TOYOTA Reflex Burn (TRB) system in DI diesel , 1990 .

[26]  Timothy A. Shedd,et al.  Reprint of: A multiphase, micro-scale PIV measurement technique for liquid film velocity measurements in annular two-phase flow , 2014 .

[27]  Avinash Kumar Agarwal,et al.  In-Cylinder Air-Flow Characteristics Using Tomographic PIV at Different Engine Speeds, Intake Air Temperatures and Intake Valve Deactivation in a Single Cylinder Optical Research Engine , 2016 .

[28]  Takehiko Segawa,et al.  Experimental study on drag-reducing channel flow with surfactant additives––spatial structure of turbulence investigated by PIV system , 2002 .

[29]  Avinash Kumar Agarwal,et al.  Time resolved in-situ biodiesel combustion visualization using engine endoscopy , 2015 .

[30]  Alain Dupont,et al.  PIV Measurements of Internal Aerodynamic of Diesel Combustion Chamber , 2003 .

[31]  D. B. Rhodes,et al.  Laminar burning speed measurements of indolene-air-diluent mixtures at high pressures and temperatures , 1985 .

[32]  Sébastien Candel,et al.  Combustion control and sensors: a review , 2002 .

[33]  Duo Xu,et al.  Accurate estimate of turbulent dissipation rate using PIV data , 2013 .

[34]  Yong-Taek Han,et al.  The investigation of soot and temperature distributions in a visualized direct injection diesel engine using laser diagnostics , 2008 .

[35]  Je-Chin Han,et al.  PIV flow measurements for heat transfer characterization in two-pass square channels with smooth and 90° ribbed walls , 2002 .

[36]  H. Kubach,et al.  Combustion in spark ignition engines with direct injection , 2000 .

[37]  Su Han Park,et al.  Influence of the mixture of gasoline and diesel fuels on droplet atomization, combustion, and exhaust emission characteristics in a compression ignition engine , 2013 .

[38]  Stephen Ciatti,et al.  Emissions, Performance, and In-Cylinder Combustion Analysis in a Light-Duty Diesel Engine Operatin , 2005 .

[39]  D. E. Winterbone,et al.  Measurement of the flow field in a diesel engine combustion chamber after combustion by cross-correlation of high-speed photographs , 1996 .

[40]  M. Metghalchi,et al.  Burning Velocities of Mixtures of Air with Methanol, Isooctane, and Indolene at High Pressure and Temperature , 1982 .

[41]  Chao He,et al.  Spray properties of alternative fuels: A comparative analysis of biodiesel and diesel , 2008 .

[42]  Ulrich Spicher,et al.  Investigation of the Transient In-Cylinder Flow Inside a Two Stroke Engine with Particle-Image-Velocimetry , 2000 .

[43]  Byungchul Choi,et al.  In-Cylinder Flow Field Analysis of a Single Cylinder DI Diesel Engine Using PIV and CFD , 2003 .

[44]  J. C. Dent,et al.  Particle image velocimetry analysis of IC engine in-cylinder flows , 1996 .

[45]  M. M. Elkotb,et al.  Fuel atomization for spray modelling , 1982 .

[46]  Carlo N. Grimaldi,et al.  Experimental Comparison Between Conventional and Bio-derived Fuels Sprays from a Common Rail Injection System , 2000 .

[47]  Sang Yong Lee,et al.  Determination of in-focus criteria and depth of field in image processing of spray particles , 2001 .

[48]  Joachim Demuynck,et al.  Spray parameter comparison between diesel and vegetable oils for non-evaporating conditions , 2011 .

[49]  Sungwook Park,et al.  An experimental and numerical study on fuel atomization characteristics of high-pressure diesel injection sprays ☆ , 2002 .

[50]  C. Ejim,et al.  Analytical study for atomization of biodiesels and their blends in a typical injector: Surface tension and viscosity effects , 2007 .

[51]  P. Farrell,et al.  Intake Valve Flow Measurements of an IC Engine Using Particle Image Velocimetry , 1993 .

[52]  Fred W. Bowditch,et al.  A New Tool for Combustion Research A Quartz Piston Engine , 1961 .

[53]  Su Han Park,et al.  Experimental and numerical analysis of spray-atomization characteristics of biodiesel fuel in various fuel and ambient temperatures conditions , 2009 .

[54]  G. Valentino,et al.  Intake Valve Flow Measurements Using PIV , 1993 .

[55]  Bing Liu,et al.  Combustion behaviors of a compression-ignition engine fueled with diesel/methanol blends under various fuel delivery advance angles. , 2004, Bioresource technology.

[56]  Olawole Abiola Kuti,et al.  Experimental and analytical study on biodiesel and diesel spray characteristics under ultra-high injection pressure , 2010 .

[57]  Shailendra Sinha,et al.  Effect of EGR on the exhaust gas temperature and exhaust opacity in compression ignition engines , 2004 .

[58]  Avinash Kumar Agarwal,et al.  Tomographic Particle Image Velocimetry for Flow Analysis in a Single Cylinder Optical Engine , 2015 .

[59]  Su Han Park,et al.  A study on the macroscopic spray behavior and atomization characteristics of biodiesel and dimethyl ether sprays under increased ambient pressure , 2010 .

[60]  Rolf D. Reitz,et al.  In-Cylinder Measurement and Modeling of Liquid Fuel Spray Penetration in a Heavy-Duty Diesel Engine , 1997 .

[61]  Humberto Chaves,et al.  VELOCITY MEASUREMENTS OF DENSE DIESEL FUEL SPRAYS IN DENSE AIR , 2004 .

[62]  P. G. Hill,et al.  Ignition Delay and Combustion Duration with Natural Gas Fueling of Diesel Engines , 1996 .

[63]  Konstantinos Boulouchos,et al.  Characterization and Phenomenological Modeling of Mixture Formation and Combustion in a Direct Injection Spark Ignition Engine , 2002 .

[64]  Sibendu Som,et al.  A comparison of injector flow and spray characteristics of biodiesel with petrodiesel , 2010 .

[65]  Paul C. Miles,et al.  A comprehensive modeling study of in-cylinder fluid flows in a high-swirl, light-duty optical diesel engine , 2014 .

[66]  P. G. Felton,et al.  Two-color particle image velocimetry technique for an internal combustion engine , 1994 .

[67]  Ainul Ghurri,et al.  Qualitative and quantitative analysis of spray characteristics of diesel and biodiesel blend on common-rail injection system , 2011 .

[68]  N. Henein.  Diesel Engines Combustion and Emissions , 1973 .

[69]  Zhijun Wu,et al.  Experimental study of the spray characteristics of biodiesel based on inedible oil. , 2009, Biotechnology advances.

[70]  J. C. Dent.  A basis for the comparison of various experimental methods for studying spray penetration. , 1971 .

[71]  Jürgen Kompenhans,et al.  Demonstration by PIV of the Non-Reproducibility of the Flow Field Around an Airfoil Pitching Under Deep Dynamic Stall Conditions and Consequences Thereof , 1997 .

[72]  E. Baum,et al.  On The Validation of LES Applied to Internal Combustion Engine Flows: Part 1: Comprehensive Experimental Database , 2014 .

[73]  S. Jarvis,et al.  Simultaneous Study of Intake and In-Cylinder IC Engine Flow Fields to Provide an Insight into Intake Induced Cyclic Variations , 2006 .

[74]  S. W. Park,et al.  MACROSCOPIC STRUCTURE AND ATOMIZATION CHARACTERISTICS OF HIGH-SPEED DIESEL SPRAY , 2003 .

[75]  Hyun Kyu Suh,et al.  Spray and Combustion Characteristics of Biodiesel∕Diesel Blended Fuel in a Direct Injection Common-Rail Diesel Engine , 2008 .

[76]  Rolf D. Reitz,et al.  Two-Color Imaging of In-Cylinder Soot Concentration and Temperature in a Heavy-Duty DI Diesel Engine with Comparison to Multidimensional Modeling for Single and Split Injections , 1998 .

[77]  Zuo-hua Huang,et al.  Characterization of spray and combustion processes of biodiesel fuel injected by diesel engine common rail system , 2013 .

[78]  Kinji Tsujimura,et al.  A Study on Surrounding Air Flow Induced by Diesel Sprays , 1998 .

[79]  Erik Schünemann,et al.  Droplet Size and Velocity Measurements for the Characterization of a DI-Diesel Spray Impinging on a Flat Wall , 1998 .

[80]  Konstantinos Boulouchos,et al.  Characterization of Mixture Formation in a Direct Injected Spark Ignition Engine , 2001 .

[81]  Feng He,et al.  PIV measurement and simulation of turbulent thermal free convection over a small heat source in a large enclosed cavity , 2015 .

[82]  Atle Jensen,et al.  Combined simultaneous two-phase PIV and interface elevation measurements in stratified gas/liquid pipe flow , 2015 .

[83]  Tobias Husberg,et al.  Piston Temperature Measurement by Use of Thermographic Phosphors and Thermocouples in a Heavy-Duty Diesel Engine Run Under Partly Premixed Conditions , 2005 .