THE USE OF Φ-T MAPS FOR SOOT PREDICTION IN ENGINE MODELING

Size: px
Start display at page:

Download "THE USE OF Φ-T MAPS FOR SOOT PREDICTION IN ENGINE MODELING"

Transcription

1 THE USE OF ΦT MAPS FOR SOOT PREDICTION IN ENGINE MODELING Arturo de Risi, Teresa Donateo, Domenico Laforgia Università di Lecce Dipartimento di Ingegneria dell Innovazione, 731 via Arnesano, Lecce Italy INTRODUCTION The simulation of direct injection diesel engines requires accurate models to predict spray evolution and combustion processes. Several models have been proposed for traditional injection strategies characterized by single injection pulse close to top dead center and no EGR. Unfortunately, these models show some limits when applied to different injection strategies and EGR so that a correct simulation of engine performance and emissions cannot be achieved without changing variables included in spray and combustion models. The aim of the present investigation is to check the prediction capability of the modified version of the KIVA3V code developed at the CREA Research Center of Lecce Italy [1]. This modified version of the code was obtained by eliminating the hypotheses of constant fuel density and constant spray angle and by using an improved version of the Shell model. The modified version of the shell model, including two more radicals and three new chemical steps, has been applied to simulate the ignition process of both homogeneous mixture and diesel engine. The results of previous investigations showed that the new version of the KIVA code is also able to follow the changing in injection strategy and EGR as far as ignition delay and NOx emissions are concerned. However both the original and the modified versions of the KIVA3V code were found unable to predict the strong increase of soot level and the following drop when high values of EGR are used. The present investigation focuses on the improvements made to the combustion and soot emission submodels in order to advance the prediction of the pressure traces and soot trend when increasing EGR up to 57%. Soot emissions were calculated by using ΦT maps obtained with the CHEMKIN code. EXPERIMENTAL DATA In the present investigation, experimental data obtained with high EGR levels for a singlecylinder diesel engine were used to test the code. Engine specifications are reported in the Table 1. Bore [mm] 84. Stroke [mm] Connecting rod lenght [mm] 136. Compression Ratio 17. Intake valve closing (start of simulation) [ BTDC] 148 Injection system Common Rail Hole diameter [µm] 16 Number of holes 6 Spray con angle 16 Table 1 Engine specification The available experimental data refers to the operating condition of Table 2 and include pressure traces and emissions levels. 1

2 Engine speed [rpm] BMEP [bar] IMEP [bar] Injection Pressure [bar] Table 2 Engine operating condition In the experiments fuel was injected with a standard single pulse strategy and the injection timing was adjusted to take into account the slower combustion rate. In particular, the timing was changed for each EGR level so that the 5% of the injected fuel burned at the same crank angle (ALPHA) as shown in Fig. 1. ALPHA@5% burned mass EGR LEVEL Fig. 1 Crank angle corresponding to 5% of burned mass (experimental values) The corresponding operating conditions and measured emissions are reported in Table 3. % EGR Injection timing [CA ATDC] NOx [g/kgf] Soot [g/kgf] Table 3 Experimental data NUMERICAL MODELS FOR COMBUSTION AND SOOT The present investigation focuses on the submodels for combustion and soot emissions in order to improve the prediction of the pressure traces and soot trend when increasing EGR up to 57%. The combustion phase was simulated with the laminar and turbulent characteristic times combustion model. In the laminarandturbulent characteristictime combustion model the local time rate of change of the partial density of species, m, due to conversion from one chemical species to another, is given by: d Ym Y Y dt τ * = m m c where Y m is the mass fraction of species m, Y* m is the local and instantaneous thermodynamic equilibrium value of the mass fraction, and τ c is the characteristic time to achieve equilibrium. ( 1) 2

3 The characteristic time is the sum of a laminar and a turbulent timescale, τ c = τl + f τt The laminar timescale τ l is derived from an Arrhenius type reaction rate (Bergeron and Hallett, [3]) with the preexponential constant A=7.68x1 8 and the activation energy E=77.3 kj/mol : τ l = A [ C H ] [ O ] exp( E/ RT) ( 3) The turbulent characteristic time is assumed proportional to the eddies turnover time: ( 2) k τ t = cm2 ε where C 2 =.1 (Kong et al., [2]), and k and ε are calculated from the modified RNG k ε turbulence model. ( 4) The delay coefficient, f, simulates the increasing influence of turbulence on combustion after ignition has occurred, r 1 e f =.632 and r is the ratio of the mass of products to that of total reactive species: r = ( YCO Y CO2) + ( YH O Y H2O ) + ( YCO Y CO ) + ( YH Y H2) Y N2 ( 5) ( 6) For soot prediction, two different approaches were considered. The first one consisted in using the Hiroyasu formation model [4] and the Nagle and StricklandConstable oxidation model [5]. The second approach was the use of ΦT maps. Such maps were obtained with CHEMKIN by considering a detailed scheme for dodecane oxidation [6]. A set of homogeneous reacting systems, characterized by seven values of the equivalence ratio Φ and six of the mixture initial temperature T, was simulated. The results of CHEMKIN simulations were used to predict the percentage of mixture converted to soot for each value of Φ and T. This percentage was assumed to be the conversion factor in the production of soot as shown in Fig.2. In this way the map indicate not only the regions of the ΦT plan where emissions are formed but also how much soot is formed in those regions φ Temperature [K] Conversion factor 2.E32.2E3 1.8E32.E3 1.6E31.8E3 1.4E31.6E3 1.2E31.4E3 1.E31.2E3 8.E41.E3 6.E48.E4 4.E46.E4 2.E44.E4.E+2.E4 Fig. 2 Sooting maps obtained with CHEMKIN 3

4 USE OF THE ΦT MAP The ΦT map obtained with CHEMKIN was used to predict the soot emission obtained from a diesel engine with the following procedure: 1) Each case of Table 3 was simulated with the KIVA3V code; 2) During the simulation, the mass of mixture at each value of Φ and T was recorded; 3) At the end of each simulation, the total mass of mixture for all Φ and T values was calculated; 4) For each evaluated Φ and T combination, the local mass of soot was calculated by multiplying the mass mixture with the corresponding conversion factor; 5) The total mass of soot was obtained by summing the soot mass over the whole map. The results of the use of this approach were compared with the soot levels predicted with the Hiroyasu formation model and the Nagle and StricklandConstable oxidation model. The soot trends predicted with the two approach are shown in Fig. 3 together with experimental data. Note that in the case of low EGR the two approaches give similar results. But, when increasing EGR over 44% the standard soot model fails to predict the soot trend while the method based on the ΦT maps shows a good agreement with the experimental data. Fig. 3 Calculated and experimental results of soot emissions with high levels of EGR Note that the use of the Φ and T map to predict soot emissions is possible only when the local distribution of the equivalence ratio and temperature is correctly simulated. For this reason it is mandatory to improve the capability of the combustion models to correctly predict the combustion phenomena in diesel engines when using non standard injection strategies and high EGR levels. In the present investigation, the laminar characteristic time has been adjusted according to the EGR level to match the experimental pressure traces reported in Fig. 4. 4

5 NO EGR 27% EGR % EGR 44% EGR % EGR 54% EGR Cylinder Pressure (bar) Crank Angle (deg) Cylinder Pressure (bar) Crank Angle (deg) 56% EGR 57% EGR numerical simulations experimental data Fig. 4 Experimental and numerical pressure traces 5

6 An adjustment of the laminar characteristic time with EGR levels was also used by Xin et al. [6] to take into account the effects of residual gas. However, in the cases considered in the present investigation a linear correlation between the laminar timescale and the EGR level could not be found, therefore the correction factor reported in Fig. 5 has been introduced. This means that the laminar characteristic time shows a linear dependency from the EGR levels lower than 44% and greater than 52%. However, it has to be noticed that the slope of the linear fitting is very different for the two regions. For EGR levels in the range between 44% and 52% the correction factor was to be reduced from.2 to Correction factor CF = xEGR.2 CF =.12.2xEGR % 1% 2% 3% 4% 5% 6% EGR level Fig. 5 Correction factor for the laminar characteristic time parameter (A) CONCLUSIONS The present investigation focuses on the submodels for combustion and soot emissions in order to improve the prediction of the pressure traces and soot trend when increasing EGR up to 57%. The comparison with experimental data available for a single cylinder direct injection diesel engine revealed that: The ΦT map can be useful to predict soot emissions obtained in the case high levels of EGR when combustion is correctly simulated; To take into account the slower combustion rate due to EGR a correction to the laminar characteristic time was made; A better understanding of the combustion processes in the case of high EGR is needed to improve the combustion model of the KIVA3V code. REFERENCES 1. de Risi,A., Donateo, T., Laforgia, D., (24), CFD Modeling of Pilot Injection and EGR in DI Diesel Engines, ICEF24837, Fall Technical Conference Long Beach, CA, USA, October 2427, 24; 2. Kong, S.C., Han, Z., Reitz, R.D., (1995), The Development and Application of a Diesel Ignition and Combustion Model for Multidimensional Engine Simulation, SAE paper 95278; 3. Bergeron, C.A. and Hallett, W.L.H. (1989) Ignition Characteristics of Liquid Hydrocarbon Fuels as Single Droplets, Canadian J. of Chem. Engng, 67, , Hiroyasu, H., Nishida, K., (1989), Simplified Three Dimensional Modeling of Mixture Formation and Combustion in a D.I. Diesel Engine, SAE Paper 89269; 5. Nagle, J., StricklandConstable, R. F., (1962), Oxidation of Carbon between 12 C, Proc. of the Fifth Carbon Conference, Vol. 1, Pergammon Press; 6. Nordin N., Golovitchev, V.I., (1997) Numerical Evaluation of nheptane Spray Combustion at Diesellike Conditions, KIVA Users Workshop 97223; 7. Xin, Montgomery, Han and Reitz (1997) Multidimensional Modeling for a SixMode Emissions Test Cycle on a DI Diesel Engine, Journal of Engineering for Gas Turbine and Power; 8. Akihama, Takatori, Inagaki, Sasaki, Dean, (21), Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature, SAE PAPER Kitamura, Senda, Fujimoto, (24), Mechanism of smokeless diesel combustion with oxigenate fuels base on the dependence of the equivalence ratio and temperature on soot particle formation, Int. J. Engine Research, Vol. 3 No. 4, pp

* Corresponding author

* Corresponding author Characterization of Dual-Fuel PCCI Combustion in a Light-Duty Engine S. L. Kokjohn * and R. D. Reitz Department of Mechanical Engineering University of Wisconsin - Madison Madison, WI 5376 USA Abstract.

More information

Numerical Study of Multi-Component Spray Combustion with a Discrete Multi- Component Fuel Model

Numerical Study of Multi-Component Spray Combustion with a Discrete Multi- Component Fuel Model Numerical Study of Multi-Component Spray Combustion with a Discrete Multi- Component Fuel Model Y. Ra, and R. D. Reitz Engine Research Center, University of Wisconsin-Madison Madison, Wisconsin 53706 USA

More information

Emissions predictions for Diesel engines based on chemistry tabulation

Emissions predictions for Diesel engines based on chemistry tabulation Emissions predictions for Diesel engines based on chemistry tabulation C. Meijer, F.A. Tap AVL Dacolt BV (The Netherlands) M. Tvrdojevic, P. Priesching AVL List GmbH (Austria) 1. Introduction It is generally

More information

Control of PCCI Combustion using Physical and Chemical Characteristics of Mixed Fuel

Control 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 information

Improving Fuel Efficiency with Fuel-Reactivity-Controlled Combustion

Improving Fuel Efficiency with Fuel-Reactivity-Controlled Combustion ERC Symposium 2009 1 Improving Fuel Efficiency with Fuel-Reactivity-Controlled Combustion Rolf D. Reitz, Reed Hanson, Derek Splitter, Sage Kokjohn Engine Research Center University of Wisconsin-Madison

More information

Marc ZELLAT, Driss ABOURI, Thierry CONTE and Riyad HECHAICHI CD-adapco

Marc 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 information

A Comparison of Numerical Results for an Optically Accessible HSDI Diesel Engine with Experimental Data

A Comparison of Numerical Results for an Optically Accessible HSDI Diesel Engine with Experimental Data A Comparison of Numerical Results for an Optically Accessible HSDI Diesel Engine with Experimental Data Way Lee Cheng, Robert Wang, Jared Zhao and Chia-fon F. Lee Department of Mechanical and Industrial

More information

Digital Shaping and Optimization of Fuel Injection Pattern for a Common Rail Automotive Diesel Engine through Numerical Simulation

Digital Shaping and Optimization of Fuel Injection Pattern for a Common Rail Automotive Diesel Engine through Numerical Simulation Digital Shaping and Optimization of Fuel Injection Pattern for a Common Rail Automotive Diesel Engine through Numerical Simulation European GT Conference 2017 - Frankfurt am Main Politecnico di Torino:

More information

CFD Combustion Models for IC Engines. Rolf D. Reitz

CFD Combustion Models for IC Engines. Rolf D. Reitz CFD Combustion Models for IC Engines Rolf D. Reitz Engine Research Center University of Wisconsin-Madison ERC Symposium, June 7, 27 http://www.cae.wisc.edu/~reitz Combustion and Emission Models at the

More information

COMBUSTION AND EXHAUST EMISSION IN COMPRESSION IGNITION ENGINES WITH DUAL- FUEL SYSTEM

COMBUSTION AND EXHAUST EMISSION IN COMPRESSION IGNITION ENGINES WITH DUAL- FUEL SYSTEM COMBUSTION AND EXHAUST EMISSION IN COMPRESSION IGNITION ENGINES WITH DUAL- FUEL SYSTEM WLADYSLAW MITIANIEC CRACOW UNIVERSITY OF TECHNOLOGY ENGINE-EXPO 2008 OPEN TECHNOLOGY FORUM STUTTGAT, 7 MAY 2008 APPLICATIONS

More information

Hydrogen addition in a spark ignition engine

Hydrogen addition in a spark ignition engine Hydrogen addition in a spark ignition engine F. Halter, C. Mounaïm-Rousselle Laboratoire de Mécanique et d Energétique Orléans, FRANCE GDRE «Energetics and Safety of Hydrogen» 27/12/2007 Main advantages

More information

System Simulation for Aftertreatment. LES for Engines

System Simulation for Aftertreatment. LES for Engines System Simulation for Aftertreatment LES for Engines Christopher Rutland Engine Research Center University of Wisconsin-Madison Acknowledgements General Motors Research & Development Caterpillar, Inc.

More information

Homogeneous Charge Compression Ignition combustion and fuel composition

Homogeneous 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 information

3D CFD Modeling of Gas Exchange Processes in a Small HCCI Free Piston Engine

3D CFD Modeling of Gas Exchange Processes in a Small HCCI Free Piston Engine 3D CFD Modeling of Gas Exchange Processes in a Small HCCI Free Piston Engine Aimilios Sofianopoulos, Benjamin Lawler, Sotirios Mamalis Department of Mechanical Engineering Stony Brook University Email:

More information

EFFECT 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 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 information

Recent Advances in DI-Diesel Combustion Modeling in AVL FIRE A Validation Study

Recent Advances in DI-Diesel Combustion Modeling in AVL FIRE A Validation Study International Multidimensional Engine Modeling User s Group Meeting at the SAE Congress April 15, 2007 Detroit, MI Recent Advances in DI-Diesel Combustion Modeling in AVL FIRE A Validation Study R. Tatschl,

More information

Modelling 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. 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 information

THE THEORETICAL STUDY ON INFLUENCE OF FUEL INJECTION PRESSURE ON COMBUSTION PARAMETERS OF THE MARINE 4-STROKE ENGINE

THE THEORETICAL STUDY ON INFLUENCE OF FUEL INJECTION PRESSURE ON COMBUSTION PARAMETERS OF THE MARINE 4-STROKE ENGINE Journal of KONES Powertrain and Transport, Vol. 23, No. 1 2016 THE THEORETICAL STUDY ON INFLUENCE OF FUEL INJECTION PRESSURE ON COMBUSTION PARAMETERS OF THE MARINE 4-STROKE ENGINE Jerzy Kowalski Gdynia

More information

EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYDROGEN BLENDING ON THE CONCENTRATION OF POLLUTANTS EMITTED FROM A FOUR STROKE DIESEL ENGINE

EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYDROGEN BLENDING ON THE CONCENTRATION OF POLLUTANTS EMITTED FROM A FOUR STROKE DIESEL ENGINE EXPERIMENTAL INVESTIGATION OF THE EFFECT OF HYDROGEN BLENDING ON THE CONCENTRATION OF POLLUTANTS EMITTED FROM A FOUR STROKE DIESEL ENGINE Haroun A. K. Shahad hakshahad@yahoo.com Department of mechanical

More information

Crankcase scavenging.

Crankcase scavenging. Software for engine simulation and optimization www.diesel-rk.bmstu.ru The full cycle thermodynamic engine simulation software DIESEL-RK is designed for simulating and optimizing working processes of two-

More information

Influence of ANSYS FLUENT on Gas Engine Modeling

Influence 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 information

Marc ZELLAT, Driss ABOURI and Stefano DURANTI CD-adapco

Marc ZELLAT, Driss ABOURI and Stefano DURANTI CD-adapco 17 th International Multidimensional Engine User s Meeting at the SAE Congress 2007,April,15,2007 Detroit, MI RECENT ADVANCES IN DIESEL COMBUSTION MODELING: THE ECFM- CLEH COMBUSTION MODEL: A NEW CAPABILITY

More information

PDF-based simulations of in-cylinder combustion in a compression-ignition engine

PDF-based simulations of in-cylinder combustion in a compression-ignition engine Paper # 070IC-0192 Topic: Internal Combustion Engines 8 th US National Combustion Meeting Organized by the Western States Section of the Combustion Institute and hosted by the University of Utah May 19-22,

More information

Numerical Study of Flame Lift-off and Soot Formation in Diesel Fuel Jets

Numerical Study of Flame Lift-off and Soot Formation in Diesel Fuel Jets Numerical Study of Flame Lift-off and Soot Formation in Diesel Fuel Jets Song-Charng Kong*, Yong Sun and Rolf D. Reitz Engine Research Center, Department of Mechanical Engineering University of Wisconsin

More information

Effects of Pre-injection on Combustion Characteristics of a Single-cylinder Diesel Engine

Effects 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 information

NUMERICAL INVESTIGATION OF EFFECT OF EXHAUST GAS RECIRCULATION ON COMPRESSIONIGNITION ENGINE EMISSIONS

NUMERICAL 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 information

INFLUENCE 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 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 information

Natural Gas fuel for Internal Combustion Engine

Natural 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 information

Thermo-Kinetic Model to Predict Start of Combustion in Homogeneous Charge Compression Ignition Engine

Thermo-Kinetic Model to Predict Start of Combustion in Homogeneous Charge Compression Ignition Engine Thermo-Kinetic Model to Predict Start of Combustion in Homogeneous Charge Compression Ignition Engine Harshit Gupta and J. M. Malliarjuna Abstract Now-a-days homogeneous charge compression ignition combustion

More information

Practical Exercise: Computation of the engine output characteristics for a 4-stroke spark ignition engine

Practical Exercise: Computation of the engine output characteristics for a 4-stroke spark ignition engine Practical Exercise: Computation of the engine output characteristics for a 4-stroke spark ignition engine Dr. Sc. (Tech.), prof. Andrei Kuleshov, Bauman Moscow Technical University, Russia The main objectives

More information

Satbir Singh and Rolf D. Reitz Engine Research Center, Department of Mechanical Engineering, University of Wisconsin, Madison

Satbir 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 information

Foundations of Thermodynamics and Chemistry. 1 Introduction Preface Model-Building Simulation... 5 References...

Foundations 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 information

Numerically Analysing the Effect of EGR on Emissions of DI Diesel Engine Having Toroidal Combustion Chamber Geometry

Numerically Analysing the Effect of EGR on Emissions of DI Diesel Engine Having Toroidal Combustion Chamber Geometry Numerically Analysing the Effect of EGR on Emissions of DI Diesel Engine Having Toroidal Combustion Chamber Geometry Jibin Alex 1, Biju Cherian Abraham 2 1 Student, Dept. of Mechanical Engineering, M A

More information

Effects 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 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

Numerical Investigation in the Effect of Number of Nozzle Hole on Performance and Emission in Dual Fuel Engine

Numerical Investigation in the Effect of Number of Nozzle Hole on Performance and Emission in Dual Fuel Engine Numerical Investigation in the Effect of Number of Nozzle Hole on Performance and Emission in Dual Fuel Engine B. Jafari *1, D.Domiri Ganji 2 1. Assistant Professor, 2. PhD Student, Babol University of

More information

INCORPORATION OF EXHAUST GAS RECIRCULATION AND SPLIT INJECTION FOR REDUCTION OF NO x AND SOOT EMISSIONS IN DIRECT INJECTION DIESEL ENGINES

INCORPORATION OF EXHAUST GAS RECIRCULATION AND SPLIT INJECTION FOR REDUCTION OF NO x AND SOOT EMISSIONS IN DIRECT INJECTION DIESEL ENGINES THERMAL SCIENCE, Year 2011, Vol. 15, Suppl. 2, pp. S409-S427 409 INCORPORATION OF EXHAUST GAS RECIRCULATION AND SPLIT INJECTION FOR REDUCTION OF NO x AND SOOT EMISSIONS IN DIRECT INJECTION DIESEL ENGINES

More information

Development of new combustion strategy for internal combustion engine fueled by pure ammonia

Development of new combustion strategy for internal combustion engine fueled by pure ammonia Development of new combustion strategy for internal combustion engine fueled by pure ammonia Dongeun Lee, Hyungeun Min, Hyunho park, Han Ho Song Seoul National University Department of Mechanical Engineering

More information

Università degli Studi di Roma Tor Vergata Modeling Combustion of Methane- Hydrogen Blends in Internal Combustion Engines (BONG-HY)

Università degli Studi di Roma Tor Vergata Modeling Combustion of Methane- Hydrogen Blends in Internal Combustion Engines (BONG-HY) Università degli Studi di Roma Tor Vergata Modeling Combustion of Methane- Hydrogen Blends in Internal Combustion Engines (BONG-HY) Prof. Stefano Cordiner Ing. Vincenzo Mulone Ing. Riccardo Scarcelli Index

More information

INVESTIGATION ON EFFECT OF EQUIVALENCE RATIO AND ENGINE SPEED ON HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION USING CHEMISTRY BASED CFD CODE

INVESTIGATION ON EFFECT OF EQUIVALENCE RATIO AND ENGINE SPEED ON HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION USING CHEMISTRY BASED CFD CODE Ghafouri, J., et al.: Investigation on Effect of Equivalence Ratio and Engine Speed on... THERMAL SCIENCE: Year 2014, Vol. 18, No. 1, pp. 89-96 89 INVESTIGATION ON EFFECT OF EQUIVALENCE RATIO AND ENGINE

More information

Modeling the effect of EGR on combustion and pollution of dual fuel engines with flow field model

Modeling the effect of EGR on combustion and pollution of dual fuel engines with flow field model International Journal of Energy and Environmental Engineering ISSN: 28-963 Vol. / No.(pp.9-26) / Fall2 Modeling the effect of EGR on combustion and pollution of dual fuel engines with flow field model

More information

THE INFLUENCE OF THE EGR RATE ON A HCCI ENGINE MODEL CALCULATED WITH THE SINGLE ZONE HCCI METHOD

THE 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 information

TURBULENCE-COMBUSTION INTERACTION IN DIRECT INJECTION DIESEL ENGINE

TURBULENCE-COMBUSTION INTERACTION IN DIRECT INJECTION DIESEL ENGINE THERMAL SCIENCE: Year 2014, Vol. 18, No. 1, pp. 17-27 17 TURBULENCE-COMBUSTION INTERACTION IN DIRECT INJECTION DIESEL ENGINE by Mohamed BENCHERIF a,c*, Mohand TAZEROUT b, and Abdelkrim LIAZID c a University

More information

A COMPREHENSIVE NUMERICAL STUDY OF THE ETHANOL BLENDED FUEL EFFECT ON THE PERFORMANCE AND POLLUTANT EMISSIONS IN SPARK-IGNITION ENGINE

A COMPREHENSIVE NUMERICAL STUDY OF THE ETHANOL BLENDED FUEL EFFECT ON THE PERFORMANCE AND POLLUTANT EMISSIONS IN SPARK-IGNITION ENGINE Zangooee Motlagh, M. R., Modarres Razavi, M. R.: A Comprehensive Numerical Study... THERMAL SCIENCE: Year 2014, Vol. 18, No. 1, pp. 29-38 29 A COMPREHENSIVE NUMERICAL STUDY OF THE ETHANOL BLENDED FUEL

More information

Revisit of Diesel Reference Fuel (n-heptane) Mechanism Applied to Multidimensional Diesel Ignition and Combustion Simulations

Revisit of Diesel Reference Fuel (n-heptane) Mechanism Applied to Multidimensional Diesel Ignition and Combustion Simulations Seventeenth International Multidimensional Engine Modeling User's Group Meeting at the SAE Congress, April,, Detroit, Michigan Revisit of Diesel Reference Fuel (n-heptane) Mechanism Applied to Multidimensional

More information

INVESTIGATION THE EFFECT OF INLET PORTS DESIGN ON COMBUSTION CHARACTERISTICS AND EMISSION LEVELS OF DIESEL ENGINES

INVESTIGATION THE EFFECT OF INLET PORTS DESIGN ON COMBUSTION CHARACTERISTICS AND EMISSION LEVELS OF DIESEL ENGINES INVESTIGATION THE EFFECT OF INLET PORTS DESIGN ON COMBUSTION CHARACTERISTICS AND EMISSION LEVELS OF DIESEL ENGINES 1 Professor, 2 MS Student, Department of Mechanical Engineering, Iran University of Science

More information

Single Cylinder 4 Stroke VCR Diesel Engine Performance And Analysis At Various Blends Of Fuels Under Various Cooling Rates

Single Cylinder 4 Stroke VCR Diesel Engine Performance And Analysis At Various Blends Of Fuels Under Various Cooling Rates ISSN: 2278 0211 (Online) Single Cylinder 4 Stroke VCR Diesel Engine Performance And Analysis At Various Blends Of Fuels Under Various Cooling Rates B Lakshmana Swamy Associate Professor, Mechanical Engineering

More information

Investigation on Diesel Engine for Airflow and Combustion in a Hemispherical Combustion Chamber

Investigation on Diesel Engine for Airflow and Combustion in a Hemispherical Combustion Chamber International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2015INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Investigation

More information

The Effect of Spark Plug Position on Spark Ignition Combustion

The Effect of Spark Plug Position on Spark Ignition Combustion The Effect of Spark Plug Position on Spark Ignition Combustion Dr. M.R. MODARRES RAZAVI, Ferdowsi University of Mashhad, Faculty of Engineering. P.O. Box 91775-1111, Mashhad, IRAN. m-razavi@ferdowsi.um.ac.ir

More information

Simultaneously Reduction of NOx and Soot Emissions in a DI Heavy Duty diesel Engine Operating at High Cooled EGR Rates

Simultaneously Reduction of NOx and Soot Emissions in a DI Heavy Duty diesel Engine Operating at High Cooled EGR Rates World Academy of Science, Engineering and Technology 57 211 Simultaneously Reduction of NOx and Soot Emissions in a DI Heavy Duty diesel Engine Operating at High Cooled EGR Rates Sh. Khalilarya, S. Jafarmadar,

More information

Analysis of Controlled Auto-Ignition /HCCI Combustion in a Direct. Injection Gasoline Engine with Single and Split Fuel Injections

Analysis of Controlled Auto-Ignition /HCCI Combustion in a Direct. Injection Gasoline Engine with Single and Split Fuel Injections Submitted to Combustion Science and Technology Analysis of Controlled Auto-Ignition /HCCI Combustion in a Direct Injection Gasoline Engine with Single and Split Fuel Injections Li Cao, Hua Zhao*, Xi Jiang

More information

Simulation of Performance Parameters of Spark Ignition Engine for Various Ignition Timings

Simulation 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 information

THERMO-KINETIC COMBUSTION MODELING OF AN HCCI ENGINE TO ANALYZE IGNITION TIMING FOR CONTROL APPLICATIONS

THERMO-KINETIC COMBUSTION MODELING OF AN HCCI ENGINE TO ANALYZE IGNITION TIMING FOR CONTROL APPLICATIONS THERMO-KINETIC COMBUSTION MODELING OF AN HCCI ENGINE TO ANALYZE IGNITION TIMING FOR CONTROL APPLICATIONS M. SHAHBAKHTI, C. R. KOCH Mechanical Engineering Department, University of Alberta, Canada ABSTRACT

More information

Dual Fuel Engine Charge Motion & Combustion Study

Dual 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 information

Normal vs Abnormal Combustion in SI engine. SI Combustion. Turbulent Combustion

Normal 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 information

Overview & Perspectives for Internal Combustion Engine using STAR-CD. Marc ZELLAT

Overview & 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 information

The Effect of Volume Ratio of Ethanol Directly Injected in a Gasoline Port Injection Spark Ignition Engine

The 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 information

Analysis of Pre-ignition Initiation Mechanisms using a Multi-Cycle CFD-Simulation

Analysis of Pre-ignition Initiation Mechanisms using a Multi-Cycle CFD-Simulation International Multidimensional Engine Modeling User's Group Meeting 2014 April 7, 2014, Detroit Analysis of Pre-ignition Initiation Mechanisms using a Multi-Cycle CFD-Simulation Michael Heiss, Thomas Lauer

More information

INFLUENCE OF INTAKE AIR TEMPERATURE AND EXHAUST GAS RECIRCULATION ON HCCI COMBUSTION PROCESS USING BIOETHANOL

INFLUENCE 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 information

CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber

CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber Nguyen Thanh Hao 1 & Park Jungkyu 2 1 Heat and Refrigeration Faculty, Industrial University of HoChiMinh City, HoChiMinh,

More information

PPC FOR LOW LOAD CONDITIONS IN MARINE ENGINE USING COMPUTATIONAL AND EXPERIMENTAL TECHNIQUES

PPC FOR LOW LOAD CONDITIONS IN MARINE ENGINE USING COMPUTATIONAL AND EXPERIMENTAL TECHNIQUES PPC FOR LOW LOAD CONDITIONS IN MARINE ENGINE USING COMPUTATIONAL AND EXPERIMENTAL TECHNIQUES Presented By:Kendra Shrestha Authors: K.Shrestha, O.Kaario, M. Imperato, T. Sarjovaara, M. Larmi Internal Combusion

More information

Marc ZELLAT, Driss ABOURI, Thierry CONTE. CD-adapco Group

Marc ZELLAT, Driss ABOURI, Thierry CONTE. CD-adapco Group Advanced modeling of DI Diesel Engines: Investigations on Combustion, High EGR level and multipleinjection Application to DI Diesel Combustion Optimization Marc ZELLAT, Driss ABOURI, Thierry CONTE CD-adapco

More information

Dual Fuel Combustion an Applicable Technology for Mobile Application?

Dual 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 information

Eco-diesel engine fuelled with rapeseed oil methyl ester and ethanol. Part 3: combustion processes

Eco-diesel engine fuelled with rapeseed oil methyl ester and ethanol. Part 3: combustion processes Eco-diesel engine fuelled with rapeseed oil methyl ester and ethanol. Part 3: combustion processes A Kowalewicz Technical University of Radom, al. Chrobrego 45, Radom, 26-600, Poland. email: andrzej.kowalewicz@pr.radom.pl

More information

Combustion calibration in a Methane port fuel injection engine with the STAR-CD ISSIM embedding the ECFM-3Z model

Combustion calibration in a Methane port fuel injection engine with the STAR-CD ISSIM embedding the ECFM-3Z model Prague Czech Republic March 7-9, 2016 Combustion calibration in a Methane port fuel injection engine with the STAR-CD ISSIM embedding the ECFM-3Z model INDEX 1. PROBLEM PROPOSED 2. ANALYTICAL & NUMERICAL

More information

Combustion Analysis in PCCI Diesel Engines by Endoscopic and Pressure-Based Techniques

Combustion Analysis in PCCI Diesel Engines by Endoscopic and Pressure-Based Techniques Combustion Analysis in PCCI Diesel Engines by Endoscopic and Pressure-Based Techniques A.E Catania 1, E. Spessa 1, G. Cipolla 2, A. Vassallo 2 1. IC Engines Advanced Laboratory Politecnico di Torino 2.

More information

8 th International Symposium TCDE Choongsik Bae and Sangwook Han. 9 May 2011 KAIST Engine Laboratory

8 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 information

EGR Transient Simulation of a Turbocharged Diesel Engine using GT-Power

EGR Transient Simulation of a Turbocharged Diesel Engine using GT-Power GT-SUITE USERS CONFERENCE FRANKFURT, OCTOBER 4 TH 2004 EGR Transient Simulation of a Turbocharged Diesel Engine using GT-Power TEAM OF WORK: G. GIAFFREDA, C. VENEZIA RESEARCH CENTRE ENGINE ENGINEERING

More information

Model validation of the SI test engine

Model validation of the SI test engine TEKA. COMMISSION OF MOTORIZATION AND ENERGETICS IN AGRICULTURE 2013, Vol. 13, No. 2, 17 22 Model validation of the SI test engine Arkadiusz Jamrozik Institute of Thermal Machinery, Czestochowa University

More information

REDUCTION 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 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 information

STATE OF THE ART OF PLASMATRON FUEL REFORMERS FOR HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINES

STATE OF THE ART OF PLASMATRON FUEL REFORMERS FOR HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINES Bulletin of the Transilvania University of Braşov Vol. 3 (52) - 2010 Series I: Engineering Sciences STATE OF THE ART OF PLASMATRON FUEL REFORMERS FOR HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINES R.

More information

Scaling Functions for the Simulation of Different SI-Engine Concepts in Conventional and Electrified Power Trains

Scaling Functions for the Simulation of Different SI-Engine Concepts in Conventional and Electrified Power Trains Scaling Functions for the Simulation of Different SI-Engine Concepts in Conventional and Electrified Power Trains Dipl.-Ing. Michael Huß BMW Group (05/2007 04/2010) Prof. Dr.-Ing Georg Wachtmeister LVK

More information

Flow Simulation of Diesel Engine for Prolate Combustion Chamber

Flow Simulation of Diesel Engine for Prolate Combustion Chamber IJIRST National Conference on Recent Advancements in Mechanical Engineering (RAME 17) March 2017 Flow Simulation of Diesel Engine for Prolate Combustion Chamber R.Krishnakumar 1 P.Duraimurugan 2 M.Magudeswaran

More information

CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber

CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber Asian Journal of Applied Science and Engineering, Volume 2, No 2/2013 ISSN 2305-915X(p); 2307-9584(e) CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber Nguyen Thanh Hao 1,

More information

THE 3-D SIMULATION WITH DETAILED CHEMICAL KINETICS OF THE TURBULENT COMBUSTION IN A PRE-CHAMBER INDIRECT INJECTION DIESEL ENGINE

THE 3-D SIMULATION WITH DETAILED CHEMICAL KINETICS OF THE TURBULENT COMBUSTION IN A PRE-CHAMBER INDIRECT INJECTION DIESEL ENGINE Seventh International Conference on CFD in the Minerals and Process Industries CSIRO, Melbourne, Australia 9-11 December 9 THE 3-D SIMULATION WITH DETAILED CHEMICAL KINETICS OF THE TURBULENT COMBUSTION

More information

POSIBILITIES TO IMPROVED HOMOGENEOUS CHARGE IN INTERNAL COMBUSTION ENGINES, USING C.F.D. PROGRAM

POSIBILITIES TO IMPROVED HOMOGENEOUS CHARGE IN INTERNAL COMBUSTION ENGINES, USING C.F.D. PROGRAM POSIBILITIES TO IMPROVED HOMOGENEOUS CHARGE IN INTERNAL COMBUSTION ENGINES, USING C.F.D. PROGRAM Alexandru-Bogdan Muntean *, Anghel,Chiru, Ruxandra-Cristina (Dica) Stanescu, Cristian Soimaru Transilvania

More information

The Effect of Clean and Cold EGR on the Improvement of Low Temperature Combustion Performance in a Single Cylinder Research Diesel Engine

The Effect of Clean and Cold EGR on the Improvement of Low Temperature Combustion Performance in a Single Cylinder Research Diesel Engine The Effect of Clean and Cold EGR on the Improvement of Low Temperature Combustion Performance in a Single Cylinder Research Diesel Engine C. Beatrice, P. Capaldi, N. Del Giacomo, C. Guido and M. Lazzaro

More information

FIRE A Generic CFD Platform for DI Diesel Engine Mixture Formation and Combustion Simulation

FIRE A Generic CFD Platform for DI Diesel Engine Mixture Formation and Combustion Simulation International Multidimensional Modeling User s Group Meeting at the SAE Congress March 4, 2001 Detroit, MI FIRE A Generic CFD Platform for DI Diesel Engine Mixture Formation and Combustion Simulation INTRODUCTION

More information

Numerical Study on the Combustion and Emission Characteristics of Different Biodiesel Fuel Feedstocks and Blends Using OpenFOAM

Numerical Study on the Combustion and Emission Characteristics of Different Biodiesel Fuel Feedstocks and Blends Using OpenFOAM Numerical Study on the Combustion and Emission Characteristics of Different Biodiesel Fuel Feedstocks and Blends Using OpenFOAM Harun M. Ismail 1, Xinwei Cheng 1, Hoon Kiat Ng 1, Suyin Gan 1 and Tommaso

More information

Article Combustion and Emission Characteristics of an LNG Engine for Heat Pumps

Article Combustion and Emission Characteristics of an LNG Engine for Heat Pumps Article Combustion and Emission Characteristics of an LNG Engine for Heat Pumps Ziyoung Lee 1, Kyoungyoul Lee, Song Choi and Sungwook Park 3, * Received: 11 October 15; Accepted: 5 November 15; Published:

More information

Theoretical Study of the effects of Ignition Delay on the Performance of DI Diesel Engine

Theoretical Study of the effects of Ignition Delay on the Performance of DI Diesel Engine Theoretical Study of the effects of Ignition Delay on the Performance of DI Diesel Engine Vivek Shankhdhar a, Neeraj Kumar b a M.Tech Scholar, Moradabad Institute of Technology, India b Asst. Proff. Mechanical

More information

A Study of EGR Stratification in an Engine Cylinder

A Study of EGR Stratification in an Engine Cylinder A Study of EGR Stratification in an Engine Cylinder Bassem Ramadan Kettering University ABSTRACT One strategy to decrease the amount of oxides of nitrogen formed and emitted from certain combustion devices,

More information

Progress in Predicting Soot Particle Numbers in CFD Simulations of GDI and Diesel Engines

Progress in Predicting Soot Particle Numbers in CFD Simulations of GDI and Diesel Engines International Multidimensional Engine Modeling User's Group Meeting April 20, 2015, Detroit, Michigan Progress in Predicting Soot Particle Numbers in CFD Simulations of GDI and Diesel Engines Abstract

More information

Evolution of Particle Size Distribution within the Engine Exhaust and Aftertreatment System

Evolution of Particle Size Distribution within the Engine Exhaust and Aftertreatment System Evolution of Particle Size Distribution within the Engine Exhaust and Aftertreatment System A. J. Smallbone (1, 2), D. Z. Y. Tay (2), W. L. Heng (2), S. Mosbach (2), A. York (2,3), M. Kraft (2) (1) cmcl

More information

Assessment of Innovative Bowl Geometries over Different Swirl Ratios/EGR rates

Assessment of Innovative Bowl Geometries over Different Swirl Ratios/EGR rates Assessment of Innovative Bowl Geometries over Different Swirl Ratios/EGR rates Andrea Bianco 1, Federico Millo 2, Andrea Piano 2, Francesco Sapio 2 1: POWERTECH Engineering S.r.l., Turin ITALY 2: Politecnico

More information

Introduction to combustion

Introduction 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 information

Dual-fuel RCCI combustion

Dual-fuel RCCI combustion Dual-fuel RCCI combustion Project leader: Prof. Ingemar Denbratt PhD student: Zhiqin Jia Project start date: 30 Jan 2016 Project end date: Feb 2018 Program: CERC Project funding: 2,158,000SEK Zhiqin Jia

More information

MODELING AND ANALYSIS OF DIESEL ENGINE WITH ADDITION OF HYDROGEN-HYDROGEN-OXYGEN GAS

MODELING AND ANALYSIS OF DIESEL ENGINE WITH ADDITION OF HYDROGEN-HYDROGEN-OXYGEN GAS S465 MODELING AND ANALYSIS OF DIESEL ENGINE WITH ADDITION OF HYDROGEN-HYDROGEN-OXYGEN GAS by Karu RAGUPATHY* Department of Automobile Engineering, Dr. Mahalingam College of Engineering and Technology,

More information

Combustion System with Premixture-controlled Compression Ignition

Combustion System with Premixture-controlled Compression Ignition 35 Research Report Combustion System with Premixture-controlled Compression Ignition Kazuhisa Inagaki, Takayuki Fuyuto, Kazuaki Nishikawa, Kiyomi Nakakita, Ichiro Sakata The purpose of this study is to

More information

Variations 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 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 information

Numerical Study of Reactivity Controlled Compression Ignition (RCCI) Combustion in a Heavy-Duty Diesel Engine Using

Numerical Study of Reactivity Controlled Compression Ignition (RCCI) Combustion in a Heavy-Duty Diesel Engine Using Numerical Study of Reactivity Controlled Compression Ignition (RCCI) Combustion in a Heavy-Duty Diesel Engine Using 3D-CFD Coupled with Chemical Kinetics A-H. Kakaee 1 *, P. Rahnama 2, A. Paykani 3 1-Assistant

More information

IC Engines Roadmap. STAR-CD/es-ice v4.18 and Beyond. Richard Johns

IC Engines Roadmap. STAR-CD/es-ice v4.18 and Beyond. Richard Johns IC Engines Roadmap STAR-CD/es-ice v4.18 and Beyond Richard Johns Strategy es-ice v4.18 2D Automated Template Meshing Spray-adapted Meshing Physics STAR-CD v4.18 Contents Sprays: ELSA Spray-Wall Impingement

More information

Mathematical Modeling of the Dual Fuel Engine Cycle Joshi Anant, Poonia M.P., Jethoo A.S

Mathematical Modeling of the Dual Fuel Engine Cycle Joshi Anant, Poonia M.P., Jethoo A.S Mathematical Modeling of the Dual Fuel Engine Cycle Joshi Anant, Poonia M.P., Jethoo A.S Abstract The main aim of this paper is to investigate the combustion and performance characteristics of a single

More information

GT-Suite Users International Conference Frankfurt a.m., October 22 nd 2012

GT-Suite Users International Conference Frankfurt a.m., October 22 nd 2012 GT-Suite Users International Conference Frankfurt a.m., October 22 nd 2012 Computational Analysis of Internal and External EGR Strategies combined with Miller Cycle Concept for a Two Stage Turbocharged

More information

HIERARCHICAL MODELING FOR DESIGN AND OPTIMIZATION OF DIESEL ENGINE CONTROL STRATEGIES

HIERARCHICAL MODELING FOR DESIGN AND OPTIMIZATION OF DIESEL ENGINE CONTROL STRATEGIES HIERARCHICAL MODELING FOR DESIGN AND OPTIMIZATION OF DIESEL ENGINE CONTROL STRATEGIES Ivan Arsie, Cesare Pianese, Gianfranco Rizzo, Marco Sorrentino Dipartimento di Ingegneria Meccanica Università di Salerno

More information

INVESTIGATION OF THE FUEL PROPERTY INFLUENCE ON NUMBER OF EMITTED PARTICLES AND THEIR SIZE DISTRIBUTION IN A GASOLINE ENGINE WITH DIRECT INJECTION

INVESTIGATION OF THE FUEL PROPERTY INFLUENCE ON NUMBER OF EMITTED PARTICLES AND THEIR SIZE DISTRIBUTION IN A GASOLINE ENGINE WITH DIRECT INJECTION INVESTIGATION OF THE FUEL PROPERTY INFLUENCE ON NUMBER OF EMITTED PARTICLES AND THEIR SIZE DISTRIBUTION IN A GASOLINE ENGINE WITH DIRECT INJECTION JAN NIKLAS GEILER 1,*, ROMAN GRZESZIK 1, THOMAS BOSSMEYER

More information

Validation and Verification of ANSYS Internal Combustion Engine Software. Martin Kuntz, ANSYS, Inc.

Validation and Verification of ANSYS Internal Combustion Engine Software. Martin Kuntz, ANSYS, Inc. Validation and Verification of ANSYS Internal Combustion Engine Software Martin Kuntz, ANSYS, Inc. Contents Definitions Internal Combustion Engines Demonstration example Validation & verification Spray

More information

Analytical and Experimental Evaluation of Cylinder Deactivation on a Diesel Engine. S. Pillai, J. LoRusso, M. Van Benschoten, Roush Industries

Analytical and Experimental Evaluation of Cylinder Deactivation on a Diesel Engine. S. Pillai, J. LoRusso, M. Van Benschoten, Roush Industries Analytical and Experimental Evaluation of Cylinder Deactivation on a Diesel Engine S. Pillai, J. LoRusso, M. Van Benschoten, Roush Industries GT Users Conference November 9, 2015 Contents Introduction

More information

Simulation of the Mixture Preparation for an SI Engine using Multi-Component Fuels

Simulation of the Mixture Preparation for an SI Engine using Multi-Component Fuels ICE Workshop, STAR Global Conference 2012 March 19-21 2012, Amsterdam Simulation of the Mixture Preparation for an SI Engine using Multi-Component Fuels Michael Heiss, Thomas Lauer Content Introduction

More information

Comparison of Velocity Vector Components in a Di Diesel Engine: Analysis through Cfd Simulation

Comparison of Velocity Vector Components in a Di Diesel Engine: Analysis through Cfd Simulation IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X PP. 55-60 www.iosrjournals.org Comparison of Velocity Vector Components in a Di Diesel Engine: Analysis

More information

Effect of mesh structure in the KIVA-4 code with a less mesh dependent spray model for DI diesel engine simulations

Effect of mesh structure in the KIVA-4 code with a less mesh dependent spray model for DI diesel engine simulations International Multidimensional Engine Modeling User's Group Meeting at the SAE Congress, April 19, 29, Detroit, MI Effect of mesh structure in the KIVA-4 code with a less mesh dependent spray model for

More information