Modeling Ignition Delay in a Diesel Engine
|
|
- Carol Wilkerson
- 6 years ago
- Views:
Transcription
1 Modeling Ignition Delay in a Diesel Engine Ivonna D. Ploma Introduction The object of this analysis is to develop a model for the ignition delay in a diesel engine as a function of four experimental variables: 1. Speed 2. Load 3. Percent of alcohol (by mass in fuel) 4. Ignition timing. Ignition delay is defined as the amount of time between the start of injection and the start of combustion in a diesel engine. For this study, ignition delay was assessed using the average of approximately 40 values from a pressure trace and is claimed to be reproducible within 0.01 crank angle degrees. The data set consists of 47 runs (see Table 1). Note that no data was collected for the combination of injection timing 30 Ca 0 and speed 2000 rpm. The researcher claims that the data for this combination is consistent with the trends exhibited by the other three combinations of injection timing and speed. Plots of the ignition delay versus percent alcohol for each load/injection timing combination are shown in Appendix 1. With the exception of the data for load 70, the trends are very similar. For this reason, we first focus on a model for loads 20, 40, and 60 only. Modeling ignition delay for loads 20, 40, and 60 The plots (see Appendix 1) suggest that increasing load decreases the ignition delay. How much it decreases, however, appears to depend on the speed and/or injection timing. Similarly, the ignition delay appears to be related to the square of alcohol but the degree of curvature appears to depend on the combination of speed, load, and injection timing. In all model fitting, proportion instead of percent alcohol was used. Furthermore residuals were plotted against the variables and predicted responses for all models. These plots will not be discussed further unless noteworthy. Finally all predictor variables, except load, were centered and standardized prior to fitting the models. Table 2 summarizes the full model fits to each timing and speed combination. 95% confidence intervals for each of the model terms are listed in the last 6 columns. The last term in the table assesses if the coefficient of the quadratic term should vary according to load. Since 0 is in each of these confident intervals, this suggests that the degree of curvature does not depend on load but rather the combination of speed and injection timing. Almost all other confidence intervals do not contain 0, suggesting that the remaining terms are needed in the final models.
2 Table 1: Data on Diesel Engine run speed(rpm) load (pounds force) alcohol (mass %) Injection timing (Ca o ) ignition delay (Cao) normal normal normal normal normal normal normal normal normal normal normal normal normal retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard retard normal normal normal
3 Table 2: Full model fits for each load and timing combination Timing Speed R 2 Constant Load Alcohol Load*Alcohol Alcohol 2 Load* Alcohol (1.27, 1.38) ( , ) (0.211, 0.464) (0.0004, ) (0.249, 1.188) (-0.011, 0.016) (1.19, 1.33) ( , ) (0.437,0.868) ( , ) (0.114, 1.808) (-0.038, 0.010) (0.91, 1.06) ( , ) (0.457, 0.868) ( , ) (0.407, 2.001) (-0.050, 0.003) I then combined these separate models into one that also included speed and injection timing. This model included all main effects, some two-factor interactions, and one three-factor interaction. In total there were 13 parameters in this model. The results are shown below. Analysis of Variance Source DF Sum of Squares Mean Square F Value Pr > F Model <.0001 Error Corrected Total Parameter Estimates Variable DF Parameter Estimate Standard Error t Value Pr > t Intercept <.0001 alc <.0001 load <.0001 injtiming speed <.0001 load_speed alc_speed alc_injtiming alc_load alcsq <.0001 load_injtiming alcsq_injtiming alc_injtiming_load
4 The predicted values of this model are shown in Appendix 2 for all loads. While the model did a good job fitting the data to loads 20, 40, and 60 (compare to figures in Appendix 1), it suffers to predict 70, especially for the injection timing 24 data. Modeling ignition delay for loads 20, 40, 60, and 70 This reversal of trend in ignition delay at high loads has been noted in other research. Therefore, it cannot be assumed that the results for load 70 were due to chance variation. From the fits in Appendix 2, we clearly cannot use the previous model for loads beyond 60. In order to fit all the data well, we need a model that modifies the quadratic alcohol term for load 70. Because we do not have data for loads between 60 and 70, we cannot determine at what load this modification should occur. Thus, the best I can do is to only treat load on a continuum between 20 and 60 and then let load 70 behave differently. This model involves 21 parameters and has an R 2 of 99.6%. Plots of the fits are shown in Appendix 3. Notice how this model now accommodates the load 70 data but has not really changed the previous fits. Summary The general modeling approach has been to first fit small sections of data and then use these models to build a more general model. For all loads but 70, simple models were found for each injection timin and speed combination. These three models were then incorporated into one single general model by the addition of shifts in parameters based on injection timing, speed, and their interaction. The resultant model was rather complicated (13 parameters) but fit the data in the range for load well and can be used to predict the response for any load within this range. Modeling the data to include load=70 was more complex. Because of the change in trend relative to alcohol, we ended up basically combining the previous model with one that modeled load 70 separately. The final model had an extremely good R2 (also see Appendix 3 compared to Appendix 1) but this model does not allow one to predict the response for any load greater than 60 except for load=70. Further research that investigated loads in this range would be needed to build one overall unifying model. Conclusions Through perseverance and ingenuity perhaps an overall unifying model could have been found for the complete set of load values. However, given that there was only one load (load 70) above load 60, I believe any model would be suspect in terms of prediction for any load between 60 and 70. Further data in this range is needed to build one unifying model that can
5 be used to predict for any combination of load, speed, injection timing, and alcohol percent within the range of data. Appendix 1: Scatterplots of the Data
6
7 Appendix 2: Scatterplots of the predicted values from load model
8
9 Appendix 3: Scatterplots of the predicted values from combined model
10
Technical Papers supporting SAP 2009
Technical Papers supporting SAP 29 A meta-analysis of boiler test efficiencies to compare independent and manufacturers results Reference no. STP9/B5 Date last amended 25 March 29 Date originated 6 October
More informationMotor Trend MPG Analysis
Motor Trend MPG Analysis SJ May 15, 2016 Executive Summary For this project, we were asked to look at a data set of a collection of cars in the automobile industry. We are going to explore the relationship
More informationTRINITY COLLEGE DUBLIN THE UNIVERSITY OF DUBLIN. Faculty of Engineering, Mathematics and Science. School of Computer Science and Statistics
ST7003-1 TRINITY COLLEGE DUBLIN THE UNIVERSITY OF DUBLIN Faculty of Engineering, Mathematics and Science School of Computer Science and Statistics Postgraduate Certificate in Statistics Hilary Term 2015
More informationDRIVER SPEED COMPLIANCE WITHIN SCHOOL ZONES AND EFFECTS OF 40 PAINTED SPEED LIMIT ON DRIVER SPEED BEHAVIOURS Tony Radalj Main Roads Western Australia
DRIVER SPEED COMPLIANCE WITHIN SCHOOL ZONES AND EFFECTS OF 4 PAINTED SPEED LIMIT ON DRIVER SPEED BEHAVIOURS Tony Radalj Main Roads Western Australia ABSTRACT Two speed surveys were conducted on nineteen
More informationTABLE 4.1 POPULATION OF 100 VALUES 2
TABLE 4. POPULATION OF 00 VALUES WITH µ = 6. AND = 7.5 8. 6.4 0. 9.9 9.8 6.6 6. 5.7 5. 6.3 6.7 30.6.6.3 30.0 6.5 8. 5.6 0.3 35.5.9 30.7 3.. 9. 6. 6.8 5.3 4.3 4.4 9.0 5.0 9.9 5. 0.8 9.0.9 5.4 7.3 3.4 38..6
More informationBurn Characteristics of Visco Fuse
Originally appeared in Pyrotechnics Guild International Bulletin, No. 75 (1991). Burn Characteristics of Visco Fuse by K.L. and B.J. Kosanke From time to time there is speculation regarding the performance
More information5. CONSTRUCTION OF THE WEIGHT-FOR-LENGTH AND WEIGHT-FOR- HEIGHT STANDARDS
5. CONSTRUCTION OF THE WEIGHT-FOR-LENGTH AND WEIGHT-FOR- HEIGHT STANDARDS 5.1 Indicator-specific methodology The construction of the weight-for-length (45 to 110 cm) and weight-for-height (65 to 120 cm)
More informationMotor Trend Yvette Winton September 1, 2016
Motor Trend Yvette Winton September 1, 2016 Executive Summary Objective In this analysis, the relationship between a set of variables and miles per gallon (MPG) (outcome) is explored from a data set of
More information8 th International Symposium TCDE Choongsik Bae and Sangwook Han. 9 May 2011 KAIST Engine Laboratory
8 th International Symposium TCDE 2011 Choongsik Bae and Sangwook Han 9 May 2011 KAIST Engine Laboratory Contents 1. Background and Objective 2. Experimental Setup and Conditions 3. Results and Discussion
More informationLampiran IV. Hasil Output SPSS Versi 16.0 untuk Analisis Deskriptif
182 Lampiran IV. Hasil Output SPSS Versi 16.0 untuk Analisis Deskriptif Frequencies Statistics Kinerja Guru Sikap Guru Thdp Kepsek Motivasi Kerja Guru Kompetensi Pedagogik Guru N Valid 64 64 64 64 Missing
More informationTHERMOELECTRIC SAMPLE CONDITIONER SYSTEM (TESC)
THERMOELECTRIC SAMPLE CONDITIONER SYSTEM (TESC) FULLY AUTOMATED ASTM D2983 CONDITIONING AND TESTING ON THE CANNON TESC SYSTEM WHITE PAPER A critical performance parameter for transmission, gear, and hydraulic
More informationRoad Surface characteristics and traffic accident rates on New Zealand s state highway network
Road Surface characteristics and traffic accident rates on New Zealand s state highway network Robert Davies Statistics Research Associates http://www.statsresearch.co.nz Joint work with Marian Loader,
More informationStatistics and Quantitative Analysis U4320. Segment 8 Prof. Sharyn O Halloran
Statistics and Quantitative Analysis U4320 Segment 8 Prof. Sharyn O Halloran I. Introduction A. Overview 1. Ways to describe, summarize and display data. 2.Summary statements: Mean Standard deviation Variance
More informationfruitfly fecundity example summary Tuesday, July 17, :13:19 PM 1
fruitfly fecundity example summary Tuesday, July 17, 2018 02:13:19 PM 1 The UNIVARIATE Procedure Variable: fecund line = NS Basic Statistical Measures Location Variability Mean 33.37200 Std Deviation 8.94201
More informationAIC Laboratory R. Leaf November 28, 2016
AIC Laboratory R. Leaf November 28, 2016 In this lab we will evaluate the role of AIC to help us understand how this index can assist in model selection and model averaging. We will use the mtcars data
More informationRegression Models Course Project, 2016
Regression Models Course Project, 2016 Venkat Batchu July 13, 2016 Executive Summary In this report, mtcars data set is explored/analyzed for relationship between outcome variable mpg (miles for gallon)
More informationPreface... xi. A Word to the Practitioner... xi The Organization of the Book... xi Required Software... xii Accessing the Supplementary Content...
Contents Preface... xi A Word to the Practitioner... xi The Organization of the Book... xi Required Software... xii Accessing the Supplementary Content... xii Chapter 1 Introducing Partial Least Squares...
More informationVolvo City Safety loss experience a long-term update
Highway Loss Data Institute Bulletin Vol. 32, No. 1 : April 2015 Volvo City Safety loss experience a long-term update This Highway Loss Data Institute (HLDI) report updates two prior bulletins on the Volvo
More informationFUNDAMENTAL STUDY OF LOW-NOx COMBUSTION FLY ASH UTILIZATION SEMI-ANNUAL REPORT. Reporting Period Start Date: 05/01/1998 End Date: 10/31/1998
FUNDAMENTAL STUDY OF LOW-NOx COMBUSTION FLY ASH UTILIZATION SEMI-ANNUAL REPORT Reporting Period Start Date: 05/01/1998 End Date: 10/31/1998 Authors: Robert H. Hurt Eric M. Suuberg Report Issue Date: 10/20/1999
More informationInvestigation of Relationship between Fuel Economy and Owner Satisfaction
Investigation of Relationship between Fuel Economy and Owner Satisfaction June 2016 Malcolm Hazel, Consultant Michael S. Saccucci, Keith Newsom-Stewart, Martin Romm, Consumer Reports Introduction This
More informationResearch Report. FD807 Electric Vehicle Component Sizing vs. Vehicle Structural Weight Report
RD.9/175.3 Ricardo plc 9 1 FD7 Electric Vehicle Component Sizing vs. Vehicle Structural Weight Report Research Report Conducted by Ricardo for The Aluminum Association 9 - RD.9/175.3 Ricardo plc 9 2 Scope
More informationHASIL OUTPUT SPSS. Reliability Scale: ALL VARIABLES
139 HASIL OUTPUT SPSS Reliability Scale: ALL VARIABLES Case Processing Summary N % 100 100.0 Cases Excluded a 0.0 Total 100 100.0 a. Listwise deletion based on all variables in the procedure. Reliability
More informationExperimental Investigation of Acceleration Test in Spark Ignition Engine
Experimental Investigation of Acceleration Test in Spark Ignition Engine M. F. Tantawy Basic and Applied Science Department. College of Engineering and Technology, Arab Academy for Science, Technology
More informationModule 3: Influence of Engine Design and Operating Parameters on Emissions Lecture 14:Effect of SI Engine Design and Operating Variables on Emissions
Module 3: Influence of Engine Design and Operating Parameters on Emissions Effect of SI Engine Design and Operating Variables on Emissions The Lecture Contains: SI Engine Variables and Emissions Compression
More informationPrediction of Physical Properties and Cetane Number of Diesel Fuels and the Effect of Aromatic Hydrocarbons on These Entities
[Regular Paper] Prediction of Physical Properties and Cetane Number of Diesel Fuels and the Effect of Aromatic Hydrocarbons on These Entities (Received March 13, 1995) The gross heat of combustion and
More informationANALYTICAL EVALUATION OF ENGINE AND VEHICLE HARDWARE EFFECTS ON VEHICLE RESPONSE. Drew Raftopoulos
ANALYTICAL EVALUATION OF ENGINE AND VEHICLE HARDWARE EFFECTS ON VEHICLE RESPONSE Drew Raftopoulos WHY IS TRANSIENT RESPONSE IMPORTANT? The focus on vehicle transient response has become important with
More informationEmissions 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 informationRecent 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 informationStat 401 B Lecture 31
Model Selection Response: Highway MPG Explanatory: 13 explanatory variables Indicator variables for types of car Sports Car, SUV, Wagon, Minivan 1 Explanatory Variables Engine size (liters) Cylinders (number)
More informationINITIAL DISTRIBUTION. Chief, Bureau of Ships, Project Records (324) Commander, U.S. Naval Ordnance Laboratory, White Oak, Silver Spring 19, Md.
_ R46 AA._.~.r........ NG$ 4.,. INITIAL DISTRIBUTION Copies Chief, Bureau of Ships, Project Records (324) 5 Project Records 1 Code 554 Commander, U.S. Naval Ordnance Laboratory, White Oak, Silver Spring
More informationPREDICTION OF FUEL CONSUMPTION
PREDICTION OF FUEL CONSUMPTION OF AGRICULTURAL TRACTORS S. C. Kim, K. U. Kim, D. C. Kim ABSTRACT. A mathematical model was developed to predict fuel consumption of agricultural tractors using their official
More informationTime-Dependent Behavior of Structural Bolt Assemblies with TurnaSure Direct Tension Indicators and Assemblies with Only Washers
Time-Dependent Behavior of Structural Bolt Assemblies with TurnaSure Direct Tension Indicators and Assemblies with Only Washers A Report Prepared for TurnaSure, LLC Douglas B. Cleary, Ph.D., P.E. William
More informationSport Shieldz Skull Cap Evaluation EBB 4/22/2016
Summary A single sample of the Sport Shieldz Skull Cap was tested to determine what additional protective benefit might result from wearing it under a current motorcycle helmet. A series of impacts were
More informationMONITORING AND RESEARCH DEPARTMENT
MONITORING AND RESEARCH DEPARTMENT REPORT NO. 10-01 EVALUATION OF THE SETTLING CHARACTERISTICS OF NORTH SIDE WATER RECLAMATION PLANT COMBINED SOLIDS AND STICKNEY WATER RECLAMATION PLANT PRELIMINARY SLUDGE
More informationAppendix B STATISTICAL TABLES OVERVIEW
Appendix B STATISTICAL TABLES OVERVIEW Table B.1: Proportions of the Area Under the Normal Curve Table B.2: 1200 Two-Digit Random Numbers Table B.3: Critical Values for Student s t-test Table B.4: Power
More informationShock tube based dynamic calibration of pressure sensors
Shock tube based dynamic calibration of pressure sensors C. E. Matthews, S. Downes, T.J. Esward, A. Wilson (NPL) S. Eichstädt, C. Elster (PTB) 23/06/2011 1 Outline Shock tube as a basis for calibration
More informationThe Mechanics of Tractor Implement Performance
The Mechanics of Tractor Implement Performance Theory and Worked Examples R.H. Macmillan CHAPTER 2 TRACTOR MECHANICS Printed from: http://www.eprints.unimelb.edu.au CONTENTS 2.1 INTRODUCTION 2.1 2.2 IDEAL
More informationDowntown Lee s Summit Parking Study
Downtown Lee s Summit Parking Study As part of the Downtown Lee s Summit Master Plan, a downtown parking and traffic study was completed by TranSystems Corporation in November 2003. The parking analysis
More informationOptimizing diesel engine parameters for low emissions using Taguchi method: variation risk analysis approach Part I
Indian Journal of Engineering & Materials Sciences Vol. 12, June 2005, pp. 169-181 Optimizing diesel engine parameters for low emissions using Taguchi method: variation risk analysis approach Part I M
More informationAIR POLLUTION AND ENERGY EFFICIENCY. Update on the proposal for "A transparent and reliable hull and propeller performance standard"
E MARINE ENVIRONMENT PROTECTION COMMITTEE 64th session Agenda item 4 MEPC 64/INF.23 27 July 2012 ENGLISH ONLY AIR POLLUTION AND ENERGY EFFICIENCY Update on the proposal for "A transparent and reliable
More informationThe Discussion of this exercise covers the following points:
Exercise 1 Battery Fundamentals EXERCISE OBJECTIVE When you have completed this exercise, you will be familiar with various types of lead-acid batteries and their features. DISCUSSION OUTLINE The Discussion
More informationParticulate Emissions from Typical Light-Duty Vehicles taken from the European Fleet, Equipped with a Variety of Emissions Control Technologies
Particulate Emissions from Typical Light-Duty Vehicles taken from the European Fleet, Equipped with a Variety of Emissions Control Technologies John May, Dirk Bosteels and Cécile Favre, Association for
More informationHigh Speed Reciprocating Compressors The Importance of Interactive Modeling
High Speed Reciprocating Compressors The Importance of Interactive Modeling Christine M. Gehri Ralph E. Harris, Ph.D. Southwest Research Institute ABSTRACT Cost-effective, reliable operation of reciprocating
More informationME201 Project: Backing Up a Trailer Using Vector Analysis
ME201 Project: Backing Up a Trailer Using Vector Analysis Assigned date: January 26, 2018 Due date: March 16, 2018 INTRODUCTION Many drivers use a trial-and-error approach when they back up a vehicle with
More informationPVP Field Calibration and Accuracy of Torque Wrenches. Proceedings of ASME PVP ASME Pressure Vessel and Piping Conference PVP2011-
Proceedings of ASME PVP2011 2011 ASME Pressure Vessel and Piping Conference Proceedings of the ASME 2011 Pressure Vessels July 17-21, & Piping 2011, Division Baltimore, Conference Maryland PVP2011 July
More informationChapter 5 ESTIMATION OF MAINTENANCE COST PER HOUR USING AGE REPLACEMENT COST MODEL
Chapter 5 ESTIMATION OF MAINTENANCE COST PER HOUR USING AGE REPLACEMENT COST MODEL 87 ESTIMATION OF MAINTENANCE COST PER HOUR USING AGE REPLACEMENT COST MODEL 5.1 INTRODUCTION Maintenance is usually carried
More informationREMOTE SENSING MEASUREMENTS OF ON-ROAD HEAVY-DUTY DIESEL NO X AND PM EMISSIONS E-56
REMOTE SENSING MEASUREMENTS OF ON-ROAD HEAVY-DUTY DIESEL NO X AND PM EMISSIONS E-56 January 2003 Prepared for Coordinating Research Council, Inc. 3650 Mansell Road, Suite 140 Alpharetta, GA 30022 by Robert
More informationASTM D for Denatured Fuel Ethanol Automating Calculations and Reports with Empower 2 Software
ASTM D5501-04 for Denatured Fuel Ethanol Automating Calculations and Reports with Empower 2 Software Larry Meeker and Alice J. Di Gioia Waters Corporation Houston Field Laboratory 5909 West Loop, South
More information. Enter. Model Summary b. Std. Error. of the. Estimate. Change. a. Predictors: (Constant), Emphaty, reliability, Assurance, responsive, Tangible
LAMPIRAN Variables Entered/Removed b Variables Model Variables Entered Removed Method 1 Emphaty, reliability, Assurance, responsive, Tangible a. Enter a. All requested variables entered. b. Dependent Variable:
More informationWLTP. Proposal for a downscaling procedure for the extra high speed phases of the WLTC for low powered vehicles within a vehicle class
WLTP Proposal for a downscaling procedure for the extra high speed phases of the WLTC for low powered vehicles within a vehicle class Technical justification Heinz Steven 06.04.2013 1 Introduction The
More informationThe purpose of this lab is to explore the timing and termination of a phase for the cross street approach of an isolated intersection.
1 The purpose of this lab is to explore the timing and termination of a phase for the cross street approach of an isolated intersection. Two learning objectives for this lab. We will proceed over the remainder
More informationHeat Transfer Enhancement for Double Pipe Heat Exchanger Using Twisted Wire Brush Inserts
Heat Transfer Enhancement for Double Pipe Heat Exchanger Using Twisted Wire Brush Inserts Deepali Gaikwad 1, Kundlik Mali 2 Assistant Professor, Department of Mechanical Engineering, Sinhgad College of
More informationInvestigation 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 informationJOHANSON DIELECTRICS INC Bledsoe Street, Sylmar, Ca Phone (818) Fax (818)
Impact of Pad Design and Spacing on AC Breakdown Performance John Maxwell, Vice President of Engineering, Johanson Dielectrics Inc. Enrique Lemus, Quality Engineer, Johanson Dielectrics Inc. 15191 Bledsoe
More informationImportant Formulas. Discrete Probability Distributions. Probability and Counting Rules. The Normal Distribution. Confidence Intervals and Sample Size
blu38582_if_1-8.qxd 9/27/10 9:19 PM Page 1 Important Formulas Chapter 3 Data Description Mean for individual data: Mean for grouped data: Standard deviation for a sample: X2 s X n 1 or Standard deviation
More informationIntegrated Simulation of a Truck Diesel Engine with a Hydraulic Engine Braking System
Integrated Simulation of a Truck Diesel Engine with a Hydraulic Engine Braking System N. Brinkert, K. Kanning GT-Suite Users Conference 2008 I want to give you a short presentation about a project we work
More informationGetting Started with Correlated Component Regression (CCR) in XLSTAT-CCR
Tutorial 1 Getting Started with Correlated Component Regression (CCR) in XLSTAT-CCR Dataset for running Correlated Component Regression This tutorial 1 is based on data provided by Michel Tenenhaus and
More informationTHE EFFECT OF INNER CATALYST APPLICATION ON DIESEL ENGINE PERFORMANCE
THE EFFECT OF INNER CATALYST APPLICATION ON DIESEL ENGINE PERFORMANCE Anna Janicka, Zbigniew J. Sroka, Wojciech Walkowiak Wrocław University of Technology wyb. Wyspiańskiego 27 50-370 Wroclaw tel./fax.
More informationAccelerating the Development of Expandable Liner Hanger Systems using Abaqus
Accelerating the Development of Expandable Liner Hanger Systems using Abaqus Ganesh Nanaware, Tony Foster, Leo Gomez Baker Hughes Incorporated Abstract: Developing an expandable liner hanger system for
More informationSimulation of Performance Parameters of Spark Ignition Engine for Various Ignition Timings
Research Article International Journal of Current Engineering and Technology ISSN 2277-4106 2013 INPRESSCO. All Rights Reserved. Available at http://inpressco.com/category/ijcet Simulation of Performance
More informationDynamic Behavior Analysis of Hydraulic Power Steering Systems
Dynamic Behavior Analysis of Hydraulic Power Steering Systems Y. TOKUMOTO * *Research & Development Center, Control Devices Development Department Research regarding dynamic modeling of hydraulic power
More informationDirectivity of the CoRTN road traffic noise model
Proceedings of th International Congress on Acoustics, ICA 10 23-27 August 10, Sydney, Australia Directivity of the CoRTN road traffic noise model Simon Moore, Matthew Stead and Jonathan Cooper AECOM,
More informationCHAPTER 3: THE CHARACTERISATION OF MAGNETIC PARTICLE TYPE (GRADE) WITH RESPECT TO OIL PICK-UP
CHAPTE 3: THE CHAACTEISATION OF MAGNETIC PATICLE TYPE (GADE) WITH ESPECT TO OIL PICK-UP 3.1 Introduction 3.2 Characterisation of oil pick-up from a glass substrate 3.2.1 The effect of particle size distribution
More informationOptimal Vehicle to Grid Regulation Service Scheduling
Optimal to Grid Regulation Service Scheduling Christian Osorio Introduction With the growing popularity and market share of electric vehicles comes several opportunities for electric power utilities, vehicle
More informationLab 9: Faraday s and Ampere s Laws
Lab 9: Faraday s and Ampere s Laws Introduction In this experiment we will explore the magnetic field produced by a current in a cylindrical coil of wire, that is, a solenoid. In the previous experiment
More informationProject Reference No.: 40S_B_MTECH_007
PRODUCTION OF BIODIESEL FROM DAIRY WASH WATER SCUM THROUGH HETEROGENEOUS CATALYST AND PERFORMANCE EVALUATION OF TBC DIESEL ENGINE FOR DIFFERENT DIESEL AND METHANOL BLEND RATIOS Project Reference No.: 40S_B_MTECH_007
More informationSpatial and Temporal Analysis of Real-World Empirical Fuel Use and Emissions
Spatial and Temporal Analysis of Real-World Empirical Fuel Use and Emissions Extended Abstract 27-A-285-AWMA H. Christopher Frey, Kaishan Zhang Department of Civil, Construction and Environmental Engineering,
More informationTHE USE OF Φ-T MAPS FOR SOOT PREDICTION IN ENGINE MODELING
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
More informationPredicted availability of safety features on registered vehicles a 2015 update
Highway Loss Data Institute Bulletin Vol. 32, No. 16 : September 2015 Predicted availability of safety features on registered vehicles a 2015 update Prior Highway Loss Data Institute (HLDI) studies have
More informationOregon DOT Slow-Speed Weigh-in-Motion (SWIM) Project: Analysis of Initial Weight Data
Portland State University PDXScholar Center for Urban Studies Publications and Reports Center for Urban Studies 7-1997 Oregon DOT Slow-Speed Weigh-in-Motion (SWIM) Project: Analysis of Initial Weight Data
More informationDevelopment of Emission Control Technology to Reduce Levels of NO x and Fuel Consumption in Marine Diesel Engines
Vol. 44 No. 1 211 Development of Emission Control Technology to Reduce Levels of NO x and Fuel Consumption in Marine Diesel Engines TAGAI Tetsuya : Doctor of Engineering, Research and Development, Engineering
More information# of tests Condition g/mile ± g/mile ± g/mile ± (miles/gal) ± Impact of Diesel Extreme on emissions and fuel economy USDS results:
Executive Summary Fuel Additive EPA based fuel economy testing was completed at the Ohio State University Center of Automotive Research. The purpose of the testing was to take a commercial Fedex truck
More informationStat 301 Lecture 30. Model Selection. Explanatory Variables. A Good Model. Response: Highway MPG Explanatory: 13 explanatory variables
Model Selection Response: Highway MPG Explanatory: 13 explanatory variables Indicator variables for types of car Sports Car, SUV, Wagon, Minivan 1 Explanatory Variables Engine size (liters) Cylinders (number)
More informationAn Investigation of impacts VMS
An Investigation of impacts VMS on safety on Scottish Trunk Roads Wafaa Saleh, Craig Walker and Chih Wei Pai Contents 1. Introduction to VMS 2. Literature 3. Research gaps 4. Main research objectives 5.
More informationEffects of Pre-injection on Combustion Characteristics of a Single-cylinder Diesel Engine
Proceedings of the ASME 2009 International Mechanical Engineering Congress & Exposition IMECE2009 November 13-19, Lake Buena Vista, Florida, USA IMECE2009-10493 IMECE2009-10493 Effects of Pre-injection
More informationA Kowalewicz Technical University of Radom, ul. Chrobrego 45, Radom, , Poland.
co-diesel engine fuelled with rapeseed oil methyl ester and ethanol. Part : comparison of emissions and efficiency for two base fuels: diesel fuel and ester A Kowalewicz Technical University of Radom,
More informationStop-Start Technology
Stop-Start Technology A fundamental fuel saving strategy is to switch off the engine when it isn t needed. The value of this advice is supported by an increasing number of vehicle manufacturers that are
More informationMarc ZELLAT, Driss ABOURI, Thierry CONTE and Riyad HECHAICHI CD-adapco
16 th International Multidimensional Engine User s Meeting at the SAE Congress 2006,April,06,2006 Detroit, MI RECENT ADVANCES IN SI ENGINE MODELING: A NEW MODEL FOR SPARK AND KNOCK USING A DETAILED CHEMISTRY
More informationMethanol distribution in amine systems and its impact on plant performance Abstract: Methanol in gas treating Methanol impact on downstream units
Abstract: Presented at the AIChE Spring 2015 meeting in Austin, TX, USA Methanol distribution in amine systems and its impact on plant performance Anand Govindarajan*, Nathan A. Hatcher, and Ralph H. Weiland
More informationFutureMetrics LLC. 8 Airport Road Bethel, ME 04217, USA. Cheap Natural Gas will be Good for the Wood-to-Energy Sector!
FutureMetrics LLC 8 Airport Road Bethel, ME 04217, USA Cheap Natural Gas will be Good for the Wood-to-Energy Sector! January 13, 2013 By Dr. William Strauss, FutureMetrics It is not uncommon to hear that
More informationSharif University of Technology. Graduate School of Management and Economics. Econometrics I. Fall Seyed Mahdi Barakchian
Sharif University of Technology Graduate School of Management and Economics Econometrics I Fall 2010 Seyed Mahdi Barakchian Textbook: Wooldridge, J., Introductory Econometrics: A Modern Approach, South
More informationR&D on Environment-Friendly, Electronically Controlled Diesel Engine
20000 M4.2.2 R&D on Environment-Friendly, Electronically Controlled Diesel Engine (Electronically Controlled Diesel Engine Group) Nobuyasu Matsudaira, Koji Imoto, Hiroshi Morimoto, Akira Numata, Toshimitsu
More informationHIGH VOLTAGE vs. LOW VOLTAGE: POTENTIAL IN MILITARY SYSTEMS
2013 NDIA GROUND VEHICLE SYSTEMS ENGINEERING AND TECHNOLOGY SYMPOSIUM POWER AND MOBILITY (P&M) MINI-SYMPOSIUM AUGUST 21-22, 2013 TROY, MICHIGAN HIGH VOLTAGE vs. LOW VOLTAGE: POTENTIAL IN MILITARY SYSTEMS
More informationReview Prepared for U. S. Environmental Protection Agency Office of Transportation and Air Quality Assessment and Standards Division.
REPORT REVIEW EPA420-S-02-012 THE EFFECT OF CETANE NUMBER INCREASE DUE TO ADDITIVES ON NOX EMISSIONS FROM HEAVY-DUTY HIGHWAY ENGINES Review Prepared for U. S. Environmental Protection Agency Office of
More informationLET S ARGUE: STUDENT WORK PAMELA RAWSON. Baxter Academy for Technology & Science Portland, rawsonmath.
LET S ARGUE: STUDENT WORK PAMELA RAWSON Baxter Academy for Technology & Science Portland, Maine pamela.rawson@gmail.com @rawsonmath rawsonmath.com Contents Student Movie Data Claims (Cycle 1)... 2 Student
More informationVehicle Scrappage and Gasoline Policy. Online Appendix. Alternative First Stage and Reduced Form Specifications
Vehicle Scrappage and Gasoline Policy By Mark R. Jacobsen and Arthur A. van Benthem Online Appendix Appendix A Alternative First Stage and Reduced Form Specifications Reduced Form Using MPG Quartiles The
More informationEco-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 informationRoundabout Modeling in CORSIM. Aaron Elias August 18 th, 2009
Roundabout Modeling in CORSIM Aaron Elias August 18 th, 2009 Objective To determine the best method of roundabout implementation in CORSIM and make recommendations for its improvement based on comparisons
More informationDANGEROUS GOODS PANEL (DGP) MEETING OF THE WORKING GROUP OF THE WHOLE
International Civil Aviation Organization DGP-WG/12-WP/40 11/9/12 WORKING PAPER DANGEROUS GOODS PANEL (DGP) MEETING OF THE WORKING GROUP OF THE WHOLE Montréal, 15 to 19 October 2012 Agenda Item 2: Development
More informationIA HYSAFE & JRC IET WORKSHOP Research Priorities and Knowledge Gaps in Hydrogen Safety. Hydrogen Ignition and Light up Probabilities.
IA HYSAFE & JRC IET WORKSHOP Research Priorities and Knowledge Gaps in Hydrogen Safety Hydrogen Ignition and Light up Probabilities www.hsl.gov.uk An An Agency Agency of the of Health the Health and Safety
More informationDetermination of a turbocharged gasoline engine for hybrid powertrains. F. Kercher,
Determination of a turbocharged gasoline engine for hybrid powertrains F. Kercher, 26.10.2015 Determination of a turbocharged gasoline engine for hybrid powertrains Agenda Introduction Hybrid Electric
More informationLampiran 1. Data Perusahaan
Lampiran. Data Perusahaan NO PERUSH MV EARN DIV CFO LB.USAHA TOT.ASS ACAP 3 9 8 5 369 9678 376 ADES 75-35 - 6 3559-5977 7358 3 AQUA 5 368 65 335 797 678 53597 BATA 88 5 9 863 958 93 5 BKSL 5.3 -. 9-9 5
More informationElectric Motors and Drives
EML 2322L MAE Design and Manufacturing Laboratory Electric Motors and Drives To calculate the peak power and torque produced by an electric motor, you will need to know the following: Motor supply voltage:
More information126 Ridge Road Tel: (607) PO Box 187 Fax: (607)
1. Summary Finite element modeling has been used to determine deflections and stress levels within the SRC planar undulator. Of principal concern is the shift in the magnetic centerline and the rotation
More informationArmature Reaction and Saturation Effect
Exercise 3-1 Armature Reaction and Saturation Effect EXERCISE OBJECTIVE When you have completed this exercise, you will be able to demonstrate some of the effects of armature reaction and saturation in
More informationEFFECT OF MODIFIED DIESEL FUEL ON ENGINE FUEL EFFICIENCY
EFFECT OF MODIFIED DIESEL FUEL ON ENGINE FUEL EFFICIENCY Juris Kreicbergs, Aivis Grislis, Gundars Zalcmanis, Janis Rudzitis Riga Technical University, Latvia auto@rtu.lv Abstract. For decades much more
More informationCHAPTER 7 CYCLIC VARIATIONS
114 CHAPTER 7 CYCLIC VARIATIONS 7.1 INTRODUCTION In an apparently steady running spark ignition engine, there will be as much as 70% variation in peak pressures at certain operating condition (Winsor 1973).
More informationContents. Figures. iii
Contents Executive Summary... 1 Introduction... 2 Objective... 2 Approach... 2 Sizing of Fuel Cell Electric Vehicles... 3 Assumptions... 5 Sizing Results... 7 Results: Midsize FC HEV and FC PHEV... 8 Contribution
More informationRegenerative Utility Simulator for Grid-Tied Inverters
Regenerative Utility Simulator for Grid-Tied Inverters AMETEK s RS & MX Series with the SNK Option provides the solution Testing of grid-tied inverters used in solar energy systems is emerging as a major
More informationinter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE
Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 0.0 EFFECTS OF TRANSVERSE
More information