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

Size: px
Start display at page:

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

Transcription

1 8 th International Symposium TCDE 2011 Choongsik Bae and Sangwook Han 9 May 2011 KAIST Engine Laboratory

2 Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion 4. Conclusion 2

3 Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion 4. Conclusion 3

4 Application of LTC LTC Load limit Insufficient to overcome Injection strategy, Boosting Engine LTC Conventional diesel combustion Vehicle Mode transition 4

5 Objective In-cylinder mixture condition - EGR rate changing - EGR control system Effects of each parameter on Response time - EGR path length - Engine speed Combustion mode transition with EGR rate changing Mixing condition - Injection pressure - Engine speed IMEP In-cylinder P max MPRR CA50 HC emission Injection strategy with EGR rate changing Injection duration Injection timing Number of injection Smooth Combustion Mode Transition 5

6 Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion 4. Conclusion 6

7 Experimental Setup - Research Engine Cycle Displacement / cylinder Fuel 4 Stroke 539cc Diesel Cylinders 5 Compression Ratio Bore Stroke Fuel injection system 17.5: mm 92.4 mm Common-rail injection system 7

8 Experimental conditions [ Combustion mode transition conditions] Operating point A B C IMEP (MPa) 0.45 Engine speed (rpm) Injection pressure (MPa) EGR control valve position (1: Intake + EGR line) (2: Exhaust + EGR line) EGR rate (%) * * EGR path length: baseline (6.1 m) and short (3.8 m) [ Injection conditions of each combustion mode] Operating point EGR rate (%) Injection duration (μs) A A B C Injection timing (CAD BTDC) 8

9 Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion 4. Conclusion 9

10 1) EGR rate change only 10

11 Effects of EGR rate change EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) Initiation of EGR control valve movement From LTC to Conventional Combustion (EGR rate: 60% 0%) 1) 0~10 th cycle : EGR delay From 2) 10 th Conventional ~20 th cycle : Combustion to LTC (EGR rate: 0% 60%) EGR -Rapid rate variation decreased of IMEP rapidly and HC advancing was not the observed combustion phase increase in negative work ( hot residual gas from conventional increasing combustion the combustion preventing rate increase rapid decrease in peak in cylinder in-cyl. P pressure max and drastic retard in combustion phase) IMEP was increased (increase in in-cyl. P max provided larger effect on IMEP) 3) 20 th ~50 th cycle: Rapid decrease in IMEP due to slight advance in combustion phase - HC emissions were decreased as mode transition proceeded due to reduced EGR rate 11

12 Definition of mode transition interval (LTC Conv.) Before Mode Transition After Mode Transition During Mode Transition Variation of In-cylinder P max was selected as a criterion for dividing combustion mode - In-cylinder P max is believed to be most sensitive to the EGR rate change 12

13 Effects of EGR path length (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) In the case of short path length (6.1m 3.8m), - Reduction of EGR delay faster mode transition - Reduction of pressure drop increase in volumetric efficiency advance in combustion phase increase in peak cylinder pressure Similar level of IMEP in both cases 13

14 Effects of injection pressure (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) IMEP variation showed similar trend in both injection pressures ( governed by EGR rate change) In both cases, 40 MPa: Lager amount In the case fast of combustion 120 MPa, rate due to no EGR-> of burned fuel before 120 MPa: - Lower HC CA50 emission before TDC due -> to large improved amounts atomization of improved of spray mixing and mixing TDC due to early burned fuel before TDC -> similar level injection timing of P max Before at TDC and During Mode transition + CA50 After after TDC Mode transition In-cylinder P max 40 MPa > 120 MPa 40 MPa 120 MPa MPRR 40 MPa 120 MPa 40 MPa < 120 MPa 120 MPa: improved mixing + CA50 before TDC 14

15 Effects of engine speed (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) In the case of 2000 rpm, - Decrease in EGR delay due to higher flow velocity ; faster start - End point of mode transition was same ( more cycles were needed for the EGR rate changing) - Longer ignition delay ( higher level of turbulence increase of heat loss + more homogeneous EGR distribution) - Lower in-cyl. P max due to less amount of burned fuel before TDC As mode transition proceeded, differences of HC, ignition delay and in-cyl. P max 15

16 Effects of EGR control system (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) In the case of controlling the exhaust back pressure, - Effective EGR rate (EEGR rate + IEGR rate) was higher (larger dilution effect) decrease of in-cylinder P max retard in combustion phase - Difference of effective EGR rate was gradually reduced as mode transition proceeded ( reduced back pressure) Differences in the in-cylinder P max, combustion phase, and MPRR were reduced 16

17 2) EGR rate change + Injection event 17

18 1 st injection strategy :Gradually retarding injection timing (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) Optimized injection condition at 0% EGR rate for 0.45 MPa IMEP [Injection timing = 4 CAD BTDC, Injection duration = 817 μs] Selection of cycles at which injection strategies were applied - 15 th ~ 21 th cycles (MPRR increased rapidly during mode transition) Gradually retarding injection timing to prevent the advance in combustion phase and thus reduce MPRR Combustion phase was gradually retarded IMEP increased Before 17 th cycle, Injection timing was still early effect of retarding injection timing on retarding combustion phase was weak still high MPRR After 17 th cycle, Decrease in ignition delay and amount of burned fuel before TDC MPRR reduced 18

19 2 nd injection strategy :Gradually decreasing injection duration (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) Optimized injection condition at 0% EGR rate for 0.45 MPa IMEP [Injection timing = 4 CAD BTDC, Injection duration = 817 μs] Difference in IMEP between before and after mode transition was larger compared to the case without injection strategy Difference in MPRR between before and after mode transition was smaller compared to the case without injection strategy 19

20 3 rd injection strategy :Gradually retarding timing + decreasing duration (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) Optimized injection condition at 0% EGR rate for 0.45 MPa IMEP [Injection timing = 4 CAD BTDC, Injection duration = 817 μs] Decrease in IMEP during mode transition disappeared IMEP maintained constant level High peak of MPRR which was mainly influenced by injection timing was still remained 20

21 4 th injection strategy :Pilot injection (LTC Conv.) EGR rate (%) Engine speed (rpm) Inj. Pressure (MPa) Inj. Timing (CAD BTDC) Inj. Duration (μs) Pilot injection Pilot injection Pilot injection strategy was applied to reduce high peak of MPRR - Main injection timings : same with 3 rd injection strategy - Pilot injection timings : 10 CAD earlier than each main injection timing - Pilot injection durations : constant (600 μs) - Main injection durations : less than 3 rd injection strategy due to pilot injection High Timing peak of MPRR was disappeared Timing while IMEP was Duration (μs) Duration (μs) (CAD BTDC) (CAD BTDC) maintained stable. Cycle No. Pilot injection Low peak of MPRR occurred but it has no influence on the loud noise. 21 Main injection Pilot ratio (m pilot /m total ) 15 th X X (=11.80mg). 16 th (=6mg) (=8.40mg) th (=6mg) (=9.24 mg) th (=6mg) (=9.06mg) th (=6mg) (=8.40 mg) th (=6mg) (=7.16mg) st X X (=11.04mg).

22 Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion 4. Conclusion 22

23 Conclusion Faster and less difference in IMEP and MPRR is desirable in combustion mode transition. - For the faster mode transition, Use of shorter EGR path length was favorable in both IMEP and MPRR. - For the less different mode transition, In terms of IMEP, higher engine speed and higher injection pressure conditions were favorable. In terms of MPRR, use of shorter EGR path was favorable. Nevertheless, cycle-by-cycle injection strategies are necessary to achieve smooth mode transition from LTC to conventional combustion. - Basically, gradually retarding injection timing and decreasing injection duration are necessary. - Addition of pilot injection was effective way to reduce the combustion noise 23

24

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

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

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

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

CHAPTER 8 EFFECTS OF COMBUSTION CHAMBER GEOMETRIES

CHAPTER 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 information

Particle Size Distribution Measurements from Early to Late Injection Timing Low Temperature Combustion

Particle Size Distribution Measurements from Early to Late Injection Timing Low Temperature Combustion Particle Size Distribution Measurements from Early to Late Injection Timing Low Temperature Combustion Christopher Kolodziej, Jesús Benajes, Ricardo Novella, Simon Arthozoul CMT Motores Térmicos Universidad

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

CONTROLLING COMBUSTION IN HCCI DIESEL ENGINES

CONTROLLING 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 information

Chapter 4 ANALYTICAL WORK: COMBUSTION MODELING

Chapter 4 ANALYTICAL WORK: COMBUSTION MODELING a 4.3.4 Effect of various parameters on combustion in IC engines: Compression ratio: A higher compression ratio increases the pressure and temperature of the working mixture which reduce the initial preparation

More information

Open Access Research on the Effect of ETCI Based HCCI Technology in the Best Fuel Area

Open Access Research on the Effect of ETCI Based HCCI Technology in the Best Fuel Area Send Orders for Reprints to reprints@benthamscience.ae 934 The Open Civil Engineering Journal, 2015, 9, 934-942 Open Access Research on the Effect of ETCI Based HCCI Technology in the Best Fuel Area Youcheng

More information

Developing New Methods, Techniques to Improve Heavy-Duty Natural Gas Engine Performance

Developing New Methods, Techniques to Improve Heavy-Duty Natural Gas Engine Performance Developing New Methods, Techniques to Improve Heavy-Duty Natural Gas Engine Performance By: Mehrzad Kaiadi Supervisor: Associate Prof. Per Tunestål GERG ACADEMIC NETWORK EVENT - 2010 Division of Combustion

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

AE 1005 AUTOMOTIVE ENGINES COMBUSTION IN SI ENGINES

AE 1005 AUTOMOTIVE ENGINES COMBUSTION IN SI ENGINES AE 1005 AUTOMOTIVE ENGINES COMBUSTION IN SI ENGINES Syllabus Combustion in premixed and diffusion flames - Combustion process in IC engines. Stages of combustion - Flame propagation - Flame velocity and

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

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

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

Gasoline HCCI engine with DME (Di-methyl Ether) as an Ignition Promoter

Gasoline 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 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

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

Module7:Advanced Combustion Systems and Alternative Powerplants Lecture 32:Stratified Charge Engines

Module7: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 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

AN EXPERIMENT STUDY OF HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION AND EMISSION IN A GASOLINE ENGINE

AN 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 information

ISSN: ISO 9001:2008 Certified International Journal of Engineering and Innovative Technology (IJEIT) Volume 4, Issue 7, January 2015

ISSN: 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 information

MIXTURE FORMATION IN SPARK IGNITION ENGINES. Chapter 5

MIXTURE FORMATION IN SPARK IGNITION ENGINES. Chapter 5 MIXTURE FORMATION IN SPARK IGNITION ENGINES Chapter 5 Mixture formation in SI engine Engine induction and fuel system must prepare a fuel-air mixture that satisfiesthe requirements of the engine over its

More information

ACTUAL CYCLE. Actual engine cycle

ACTUAL CYCLE. Actual engine cycle 1 ACTUAL CYCLE Actual engine cycle Introduction 2 Ideal Gas Cycle (Air Standard Cycle) Idealized processes Idealize working Fluid Fuel-Air Cycle Idealized Processes Accurate Working Fluid Model Actual

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

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

Homogeneous Charge Compression Ignition Engine with Two-Stage Diesel Fuel Injection

Homogeneous Charge Compression Ignition Engine with Two-Stage Diesel Fuel Injection THIESEL 2 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines Homogeneous Charge Compression Ignition Engine with Two-Stage Diesel Fuel Injection Sanghoon Kook 1, Jangsik Kong 1, Kyoungdoug

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

Premixed combustion of blends of n-heptane and gasoline in a rapid compression machine

Premixed combustion of blends of n-heptane and gasoline in a rapid compression machine 7 th Annual CE-CERT-SJTU Student Symposium Premixed combustion of blends of n-heptane and gasoline in a rapid compression machine Yang Zheng, Han Dong,Guang Huanyu,Lu Xingcai, Huang Zheng EI NOx (g/kg

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

Advanced Combustion Strategies for High Efficiency Engines of the 21 st Century

Advanced Combustion Strategies for High Efficiency Engines of the 21 st Century Advanced Combustion Strategies for High Efficiency Engines of the 21 st Century Jason Martz Assistant Research Scientist and Adjunct Assistant Professor Department of Mechanical Engineering University

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

INFLUENCE OF FUEL TYPE AND INTAKE AIR PROPERTIES ON COMBUSTION CHARACTERISTICS OF HCCI ENGINE

INFLUENCE 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 information

Diesel HCCI Results at Caterpillar

Diesel HCCI Results at Caterpillar Diesel HCCI Results at Caterpillar Kevin Duffy, Jonathan Kilkenny Andrew Kieser, Eric Fluga DOE Contracts DE-FC5-OR2286, DE-FC5-97OR2265 Contract Monitors Roland Gravel, John Fairbanks DEER Conference

More information

Module 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 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 information

Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization

Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization (SAE Paper- 2009-01-0306) Craig D. Marriott PE, Matthew A. Wiles PE,

More information

Investigation on PM Emissions of a Light Duty Diesel Engine with 10% RME and GTL Blends

Investigation on PM Emissions of a Light Duty Diesel Engine with 10% RME and GTL Blends Investigation on PM Emissions of a Light Duty Diesel Engine with 10% RME and GTL Blends Hongming Xu Jun Zhang University of Birmingham Philipp Price Ford Motor Company International Particle Meeting, Cambridge

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

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

Ignition Improvements to Support High-efficiency Natural Gas Combustion

Ignition Improvements to Support High-efficiency Natural Gas Combustion Ignition Improvements to Support High-efficiency Natural Gas Combustion 2005 UW ERC Symposium on Low- Emissions Combustion Technologies for Internal Combustion Engines Corey Honl Sr. Development Engineer

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

Examination of the Low-Temperature Heat Release Occurrence in SI Engine

Examination of the Low-Temperature Heat Release Occurrence in SI Engine Examination of the Low-Temperature Heat Release Occurrence in SI Engine University of Zagreb Faculty of Mechanical Engineering and Naval Architecture Laboratory for IC Engines and Motor Vehicles Mladen

More information

Lecture 5. Abnormal Combustion

Lecture 5. Abnormal Combustion Lecture 5 Abnormal Combustion Abnormal Combustion The Abnormal Combustion:- When the combustion gets deviated from the normal behavior resulting loss of performance or damage to the engine. It is happened

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

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

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

Experimental Investigation of Acceleration Test in Spark Ignition Engine

Experimental 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 information

Fuel Effects in Advanced Combustion -Partially Premixed Combustion (PPC) with Gasoline-Type Fuels. William Cannella. Chevron

Fuel Effects in Advanced Combustion -Partially Premixed Combustion (PPC) with Gasoline-Type Fuels. William Cannella. Chevron Fuel Effects in Advanced Combustion -Partially Premixed Combustion (PPC) with Gasoline-Type Fuels William Cannella Chevron Acknowledgement Work Done In Collaboration With: Vittorio Manente, Prof. Bengt

More information

COMBUSTION in SI ENGINES

COMBUSTION 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 information

PM Exhaust Characteristics from Diesel Engine with Cooled EGR

PM 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 information

Designing Efficient Engines: Strategies Based on Thermodynamics

Designing Efficient Engines: Strategies Based on Thermodynamics Designing Efficient Engines: Strategies Based on Thermodynamics Jerald A. Caton Texas A&M University College Station, TX for CRC Advanced Fuel & Engine Workshop Hyatt Regency Baltimore Inner Harbor Baltimore,

More information

is the crank angle between the initial spark and the time when about 10% of the charge is burned. θ θ

is 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 information

JJMIE Jordan Journal of Mechanical and Industrial Engineering

JJMIE Jordan Journal of Mechanical and Industrial Engineering JJMIE Jordan Journal of Mechanical and Industrial Engineering Volume 2, Number 4, December. 2008 ISSN 1995-6665 Pages 169-174 Improving the Performance of Two Stroke Spark Ignition Engine by Direct Electronic

More information

Combustion and Injection Characteristics of a Common Rail Direct Injection Diesel Engine Fueled with Methyl and Ethyl Esters

Combustion and Injection Characteristics of a Common Rail Direct Injection Diesel Engine Fueled with Methyl and Ethyl Esters Combustion and Injection Characteristics of a Common Rail Direct Injection Engine Fueled with Methyl and s Ertan Alptekin 1,,*, Huseyin Sanli,3, Mustafa Canakci 1, 1 Kocaeli University, Department of Automotive

More information

INVESTIGATIONS OF EFFECTS OF PILOT INJECTION WITH CHANGE IN LEVEL OF COMPRESSION RATIO IN A COMMON RAIL DIESEL ENGINE

INVESTIGATIONS OF EFFECTS OF PILOT INJECTION WITH CHANGE IN LEVEL OF COMPRESSION RATIO IN A COMMON RAIL DIESEL ENGINE THERMAL SCIENCE: Year 2012, Vol. 17, No. 1, pp. 71-80 71 INVESTIGATIONS OF EFFECTS OF PILOT INJECTION WITH CHANGE IN LEVEL OF COMPRESSION RATIO IN A COMMON RAIL DIESEL ENGINE by Nilesh GAJARLAWAR a, Ajaykumar

More information

MODERN 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 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 information

Thompson D. Metzka Lanzanova, MSc. Horácio Antonio Vielmo, DSc Federal University of Rio Grande do Sul - Brazil

Thompson D. Metzka Lanzanova, MSc. Horácio Antonio Vielmo, DSc Federal University of Rio Grande do Sul - Brazil South American GT-SUITE Conference June 2013 Thompson D. Metzka Lanzanova, MSc. Horácio Antonio Vielmo, DSc Federal University of Rio Grande do Sul - Brazil Mario Eduardo Santos Martins, Phd Rafael Sari

More information

COMBUSTION in SI ENGINES

COMBUSTION 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 information

Potential of Large Output Power, High Thermal Efficiency, Near-zero NOx Emission, Supercharged, Lean-burn, Hydrogen-fuelled, Direct Injection Engines

Potential of Large Output Power, High Thermal Efficiency, Near-zero NOx Emission, Supercharged, Lean-burn, Hydrogen-fuelled, Direct Injection Engines Available online at www.sciencedirect.com Energy Procedia 29 (2012 ) 455 462 World Hydrogen Energy Conference 2012 Potential of Large Output Power, High Thermal Efficiency, Near-zero NOx Emission, Supercharged,

More information

Saud Bin Juwair, Taib Iskandar Mohamad, Ahmed Almaleki, Abdullah Alkudsi, Ibrahim Alshunaifi

Saud Bin Juwair, Taib Iskandar Mohamad, Ahmed Almaleki, Abdullah Alkudsi, Ibrahim Alshunaifi The effects of research octane number and fuel systems on the performance and emissions of a spark ignition engine: A study on Saudi Arabian RON91 and RON95 with port injection and direct injection systems

More information

Combustion. T Alrayyes

Combustion. 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 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

EEN-E2002 Combustion Technology 2017 LE 3 answers

EEN-E2002 Combustion Technology 2017 LE 3 answers EEN-E2002 Combustion Technology 2017 LE 3 answers 1. Plot the following graphs from LEO-1 engine with data (Excel_sheet_data) attached on my courses? (12 p.) a. Draw cyclic pressure curve. Also non-fired

More information

Gasoline Engine Performance and Emissions Future Technologies and Optimization

Gasoline Engine Performance and Emissions Future Technologies and Optimization Gasoline Engine Performance and Emissions Future Technologies and Optimization Paul Whitaker - Technical Specialist - Ricardo 8 th June 2005 RD. 05/52402.1 Contents Fuel Economy Trends and Drivers USA

More information

Increased efficiency through gasoline engine downsizing

Increased efficiency through gasoline engine downsizing Loughborough University Institutional Repository Increased efficiency through gasoline engine downsizing This item was submitted to Loughborough University's Institutional Repository by the/an author.

More information

Downloaded from SAE International by Brought To You Michigan State Univ, Thursday, April 02, 2015

Downloaded 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 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

Extension of the Lower Load Limit in Dieseline Compression Ignition Mode

Extension of the Lower Load Limit in Dieseline Compression Ignition Mode Available online at www.sciencedirect.com ScienceDirect Energy Procedia 75 (2015 ) 2363 2370 The 7 th International Conference on Applied Energy ICAE2015 Extension of the Lower Load Limit in Dieseline

More information

Whither Diesel? An Overview of Combustion Concepts and Research Directions for Compression Ignition Engines

Whither Diesel? An Overview of Combustion Concepts and Research Directions for Compression Ignition Engines An Overview of Combustion Concepts and Research Directions for Compression Ignition Engines Martin H. University of Oxford, UK FPC2015 Future Powertrain Conference National Motorcycle Museum, Solihull

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

EFFECT OF EGR AND CYCLONIC SEPARATOR ON EMISSIONS IN DI DIESEL ENGINES

EFFECT OF EGR AND CYCLONIC SEPARATOR ON EMISSIONS IN DI DIESEL ENGINES Proceedings of the International Conference on Mechanical Engineering 27 (ICME27) 29-31 December 27, Dhaka, Bangladesh ICME7-TH-9 EFFECT OF EGR AND CYCLONIC SEPARATOR ON EMISSIONS IN DI DIESEL ENGINES

More information

Dieseline/multi-fuel Combustion for HCCI Engines

Dieseline/multi-fuel Combustion for HCCI Engines Dieseline/multi-fuel Combustion for HCCI Engines Hongming Xu & Miroslaw Wyszynski The University of Birmingham IEA-28th TLM, Heidelberg, August 13-16, 26 Presentation Outline Research background Present

More information

Characteristics of PM Emissions of an Automotive Diesel Engine Under Cold Start and Transient Operating Conditions

Characteristics of PM Emissions of an Automotive Diesel Engine Under Cold Start and Transient Operating Conditions Characteristics of PM Emissions of an Automotive Diesel Engine Under Cold Start and Transient Operating Conditions Dai Liu, Jianyi Tian and Hongming Xu School of Mechanical Engineering 24 May 2014 Cambridge

More information

Investigation of combustion characteristics of a diesel engine fueled with DME-biodiesel blends

Investigation of combustion characteristics of a diesel engine fueled with DME-biodiesel blends Investigation of combustion characteristics of a diesel engine fueled with DME-biodiesel blends Qiao Xinqi School of Mechanical Engineering, China Outline 1. Introduction 2. Research approach 3. Experimental

More information

Effect of Reformer Gas on HCCI Combustion- Part II: Low Octane Fuels

Effect of Reformer Gas on HCCI Combustion- Part II: Low Octane Fuels Effect of Reformer Gas on HCCI Combustion- Part II: Low Octane Fuels Vahid Hosseini, and M David Checkel Mechanical Engineering University of Alberta, Edmonton, Canada project supported by Auto21 National

More information

Optical Techniques in Gasoline Engine Performance and Emissions Development

Optical 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 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

TECHNICAL PAPER FOR STUDENTS AND YOUNG ENGINEERS - FISITA WORLD AUTOMOTIVE CONGRESS, BARCELONA

TECHNICAL 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 information

Alternative Fuels for DI-Diesel Engines Meeting Future Emission Standards

Alternative Fuels for DI-Diesel Engines Meeting Future Emission Standards 1 Alternative Fuels for DI-Diesel Engines Meeting Future Emission Standards ERC - 2007 Symposium Madison, June 6, 2007 Erik Koehler and Dean Tomazic FEV Engine Technology, Inc. Auburn Hills, MI, USA 2

More information

Internal Combustion Engines

Internal Combustion Engines Emissions & Air Pollution Lecture 3 1 Outline In this lecture we will discuss emission control strategies: Fuel modifications Engine technology Exhaust gas aftertreatment We will become particularly familiar

More information

Development of Bi-Fuel Systems for Satisfying CNG Fuel Properties

Development of Bi-Fuel Systems for Satisfying CNG Fuel Properties Keihin Technical Review Vol.6 (2017) Technical Paper Development of Bi-Fuel Systems for Satisfying Fuel Properties Takayuki SHIMATSU *1 Key Words:, NGV, Bi-fuel add-on system, Fuel properties 1. Introduction

More information

Hongming 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) 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 information

Comparative performance and emissions study of a lean mixed DTS-i spark ignition engine operated on single spark and dual spark

Comparative 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 information

Ignition- and combustion concepts for lean operated passenger car natural gas engines

Ignition- and combustion concepts for lean operated passenger car natural gas engines Ignition- and combustion concepts for lean operated passenger car natural gas engines Patrik Soltic 1, Thomas Hilfiker 1 Severin Hänggi 2, Richard Hutter 2 1 Empa, Automotive Powertrain Technologies Laboratory,

More information

Numerical Investigation of Influence of Injection Timing and Knock on Dual Fuel Engine

Numerical Investigation of Influence of Injection Timing and Knock on Dual Fuel Engine Injection Timing and Knock on Dual Fuel Engine Mario Sremec* Department of Internal Combustion Engines and Motor Vehicles Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb,

More information

The Effects of Chamber Temperature and Pressure on a GDI Spray Characteristics in a Constant Volume Chamber

The 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 information

Gas exchange and fuel-air mixing simulations in a turbocharged gasoline engine with high compression ratio and VVA system

Gas exchange and fuel-air mixing simulations in a turbocharged gasoline engine with high compression ratio and VVA system Third Two-Day Meeting on Internal Combustion Engine Simulations Using the OpenFOAM technology, Milan 22 nd -23 rd February 2018. Gas exchange and fuel-air mixing simulations in a turbocharged gasoline

More information

TECHNICAL UNIVERSITY OF RADOM

TECHNICAL UNIVERSITY OF RADOM TECHNICAL UNIVERSITY OF RADOM Dr Grzegorz Pawlak Combustion of Alternative Fuels in IC Engines Ecology and Safety as a Driving Force in the Development of Vehicles Challenge 120 g/km emission of CO2 New

More information

ILASS Americas 26th Annual Conference on Liquid Atomization and Spray Systems, Portland, OR, May 2014

ILASS Americas 26th Annual Conference on Liquid Atomization and Spray Systems, Portland, OR, May 2014 Comparative Analysis of Fuel Penetration and Atomization with the Use of T Angularly Arranged Injectors in the Rapid Compression Machine and Constant Volume Chamber I. Pielecha * and P. Borowski Institute

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

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

AN ANALYSIS OF EFFECT OF VARIABLE COMPRESSION RATIO IN C.I. ENGINE USING TURBOCHARGER

AN ANALYSIS OF EFFECT OF VARIABLE COMPRESSION RATIO IN C.I. ENGINE USING TURBOCHARGER AN ANALYSIS OF EFFECT OF VARIABLE COMPRESSION RATIO IN C.I. ENGINE USING TURBOCHARGER E.Saravanapprabhu 1, M.Mahendran 2 1E.Saravanapprabhu, PG Student, Thermal Engineering, Department of Mechanical Engineering,

More information

COMBUSTION CONTROL IN GASOLINE HCCI ENGINE WITH DIRECT FUEL INJECTION AND EXHAUST GAS TRAPPING

COMBUSTION CONTROL IN GASOLINE HCCI ENGINE WITH DIRECT FUEL INJECTION AND EXHAUST GAS TRAPPING Journal of KONES Powertrain and Transport, Vol. 17, No. 2 2010 COMBUSTION CONTROL IN GASOLINE HCCI ENGINE WITH DIRECT FUEL INJECTION AND EXHAUST GAS TRAPPING Jacek Hunicz Lublin University of Technology

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

BOOSTED HCCI OPERATION ON MULTI CYLINDER V6 ENGINE

BOOSTED HCCI OPERATION ON MULTI CYLINDER V6 ENGINE Journal of KONES Powertrain and Transport, Vol. 13, No. 2 BOOSTED HCCI OPERATION ON MULTI CYLINDER V6 ENGINE Jacek Misztal, Mirosław L Wyszyński*, Hongming Xu, Athanasios Tsolakis The University of Birmingham,

More information

VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE

VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE Page 1 of 13 EFFECT OF VALVE TIMING DIAGRAM ON VOLUMETRIC EFFICIENCY: Qu. 1:Why Inlet valve is closed after the Bottom Dead Centre

More information

ENERGY 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 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 information

COMPARISON OF VARIABLE VALVE ACTUATION, CYLINDER DEACTIVATION AND INJECTION STRATEGIES FOR LOW-LOAD RCCI OPERATION OF A LIGHT-DUTY ENGINE

COMPARISON OF VARIABLE VALVE ACTUATION, CYLINDER DEACTIVATION AND INJECTION STRATEGIES FOR LOW-LOAD RCCI OPERATION OF A LIGHT-DUTY ENGINE COMPARISON OF VARIABLE VALVE ACTUATION, CYLINDER DEACTIVATION AND INJECTION STRATEGIES FOR LOW-LOAD RCCI OPERATION OF A LIGHT-DUTY ENGINE Anand Nageswaran Bharath, Yangdongfang Yang, Rolf D. Reitz, Christopher

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