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Proceedings Papers

Potential of the Variable Valve Actuation (VVA) Strategy on a Heavy Duty CNG Engine

Mirko Baratta, Roberto Finesso, Daniela Misul, Ezio Spessa, Yifei Tong, Cesare Peletto
Proc. ASME. ESDA2014, Volume 1: Applied Mechanics; Automotive Systems; Biomedical Biotechnology Engineering; Computational Mechanics; Design; Digital Manufacturing; Education; Marine and Aerospace Applications, V001T02A008, July 25–27, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ESDA2014-20217
https://doi.org/10.1115/ESDA2014-20217
View Paper titled, Potential of the Variable Valve Actuation (VVA) Strategy on a Heavy Duty CNG Engine
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Topics: Engines, Valves, Turbochargers, Fuel consumption, Stress, Combustion, Emissions, Engineering simulation, Simulation, Torque
Journal Articles

Effects of H 2 Addition to Compressed Natural Gas Blends on Cycle-to-Cycle and Cylinder-to-Cylinder Combustion Variation in a Spark-Ignition Engine

Mirko Baratta, Stefano d'Ambrosio, Daniela Misul, Ezio Spessa
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2014, 136(5): 051502.
Paper No: GTP-13-1090
https://doi.org/10.1115/1.4026163
Published Online: January 2, 2014
View Article titled, Effects of H 2 Addition to Compressed Natural Gas Blends on Cycle-to-Cycle and Cylinder-to-Cylinder Combustion Variation in a Spark-Ignition Engine
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Topics: Combustion, Cylinders, Engines, Hydrogen, Fuels, Cycles, Natural gas, Stress
Proceedings Papers

Analysis of the EGR System Performance in Modern Diesel Engines

Stefano d’Ambrosio, Alessandro Ferrari, Ezio Spessa
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 495-509, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81202
https://doi.org/10.1115/ICES2012-81202
View Paper titled, Analysis of the EGR System Performance in Modern Diesel Engines
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Topics: Diesel engines, Exhaust gas recirculation, Pressure, Valves, Coolers, Engines, Flow (Dynamics), Temperature, Combustion, Cycles
Proceedings Papers

Assessment of a Low-Throughput Predictive Model for Indicated Cycle, Combustion Noise and NOx Calculation in Diesel Engines in Steady-State and Transient Operations

Andrea Emilio Catania, Roberto Finesso, Ezio Spessa
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 273-288, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81094
https://doi.org/10.1115/ICES2012-81094
View Paper titled, Assessment of a Low-Throughput Predictive Model for Indicated Cycle, Combustion Noise and NOx Calculation in Diesel Engines in Steady-State and Transient Operations
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Topics: Combustion, Cycles, Diesel engines, Nitrogen oxides, Noise (Sound), Steady state, Transients (Dynamics), Engines, Pressure, Temperature
Proceedings Papers

Fluid-Dynamic Characterization of a CNG Injection System

Mirko Baratta, Daniela Misul, Ezio Spessa, Giuseppe Gazzilli, Andrea Gerini
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 829-836, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81176
https://doi.org/10.1115/ICES2012-81176
View Paper titled, Fluid-Dynamic Characterization of a CNG Injection System
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Topics: Fluids, Pressure, Rails, Engines, Fuels, Flow (Dynamics), Air pollution control, Design, Dynamic response, Dynamics (Mechanics)
Proceedings Papers

Effects of H2 Addition to CNG Blends on Cycle-to-Cycle and Cylinder-to-Cylinder Combustion Variation in an SI Engine

Mirko Baratta, Stefano d’Ambrosio, Daniela Misul, Ezio Spessa
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 189-202, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81187
https://doi.org/10.1115/ICES2012-81187
View Paper titled, Effects of H2 Addition to CNG Blends on Cycle-to-Cycle and Cylinder-to-Cylinder Combustion Variation in an SI Engine
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Topics: Combustion, Cycles, Cylinders, Spark-ignition engine, Engines, Hydrogen, Pressure, Combustion chambers, Computer software, Computer-aided design
Proceedings Papers

Optimization of the Operating Strategy of a BAS Hybrid Diesel Powertrain on Type-Approval and Real-World Representative Driving Cycles

Edoardo Pietro Morra, Ezio Spessa, Mattia Venditti
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 557-568, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81093
https://doi.org/10.1115/ICES2012-81093
View Paper titled, Optimization of the Operating Strategy of a BAS Hybrid Diesel Powertrain on Type-Approval and Real-World Representative Driving Cycles
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Topics: Cycles, Diesel, Optimization, Combustion, Emissions, Nitrogen oxides, Noise (Sound), Belts, Corporate average fuel economy, Electricity (Physics)
Journal Articles

Analysis of the Exhaust Gas Recirculation System Performance in Modern Diesel Engines

Stefano d'Ambrosio, Alessandro Ferrari, Ezio Spessa
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2013, 135(8): 081601.
Paper No: GTP-12-1457
https://doi.org/10.1115/1.4024089
Published Online: June 24, 2013
View Article titled, Analysis of the Exhaust Gas Recirculation System Performance in Modern Diesel Engines
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Topics: Exhaust gas recirculation, Engines, Valves
Journal Articles

Premixed-Diffusive Multizone Model for Combustion Diagnostics in Conventional and PCCI Diesel Engines

Mirko Baratta, Andrea E. Catania, Alessandro Ferrari, Roberto Finesso, Ezio Spessa
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 102801.
https://doi.org/10.1115/1.4003048
Published Online: April 25, 2011
View Article titled, Premixed-Diffusive Multizone Model for Combustion Diagnostics in Conventional and PCCI Diesel Engines
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Topics: Combustion, Exhaust gas recirculation, Diesel engines, Fuels, Temperature, Cylinders, Oxidation, Engines
Proceedings Papers

Injector Coking Effects on Engine Performance and Emissions

Antonio Arpaia, Andrea E. Catania, Stefano d’Ambrosio, Alessandro Ferrari, Sabino P. Luisi, Ezio Spessa
Proc. ASME. ICEF2009, ASME 2009 Internal Combustion Engine Division Fall Technical Conference, 229-241, September 27–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2009-14094
https://doi.org/10.1115/ICEF2009-14094
View Paper titled, Injector Coking Effects on Engine Performance and Emissions
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Topics: Ejectors, Emissions, Engines, Fuels, Nozzles, Combustion, Cylinders, Design, Diesel engines, Fuel consumption
Proceedings Papers

Turbocharged CNG Engines for Urban Transportation: Evaluation of Turbolag Reduction Strategies by Means of Computational Analyses

Mirko Baratta, Ezio Spessa
Proc. ASME. ICES2009, ASME 2009 Internal Combustion Engine Division Spring Technical Conference, 573-582, May 3–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICES2009-76067
https://doi.org/10.1115/ICES2009-76067
View Paper titled, Turbocharged CNG Engines for Urban Transportation: Evaluation of Turbolag Reduction Strategies by Means of Computational Analyses
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Topics: Cities, Engines, Transportation systems, Valves, Exhaust systems, Fuels, Stress, Transients (Dynamics), Buses, Combustion
Proceedings Papers

Prediction of Combustion Velocities, Indicated-Cycle Pressure in the Closed-Valve Phase and Operating Condition Effects on Performance and Emissions of CNG and Gasoline SI Engines

Mirko Baratta, Elena Caristo, Andrea E. Catania, Ezio Spessa
Proc. ASME. ICEF2007, ASME 2007 Internal Combustion Engine Division Fall Technical Conference, 285-300, October 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2007-1731
https://doi.org/10.1115/ICEF2007-1731
View Paper titled, Prediction of Combustion Velocities, Indicated-Cycle Pressure in the Closed-Valve Phase and Operating Condition Effects on Performance and Emissions of CNG and Gasoline SI Engines
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Topics: Combustion, Cycles, Emissions, Gasoline, Pressure, Spark-ignition engine, Valves, Engines, Turbulence, Flames
Proceedings Papers

Multidimensional Predictions of In-Cylinder Turbulent Flows: Contribution to the Assessment of k-ε Turbulence Model Variants for Bowl-in-Piston Engines

Andrea E. Catania, Mirko Baratta, Ezio Spessa, Rui L. Liu
Proc. ASME. ICES2003, Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components, 437-449, May 11–14, 2003
Publisher: American Society of Mechanical Engineers
Paper No: ICES2003-0629
https://doi.org/10.1115/ICES2003-0629
View Paper titled, Multidimensional Predictions of In-Cylinder Turbulent Flows: Contribution to the Assessment of k-ε Turbulence Model Variants for Bowl-in-Piston Engines
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Topics: Cylinders, Engines, Pistons, Turbulence, Flow (Dynamics), Compression, Emissions, Modeling, Pressure, Simulation
Proceedings Papers

Methods for Specific Emission Evaluation in SI Engines Based on Calculation Procedures of Air-Fuel Ratio: Development, Assessment and Critical Comparison

Stefano d’Ambrosio, Ezio Spessa, Alberto Vassallo
Proc. ASME. ICES2003, Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components, 155-170, May 11–14, 2003
Publisher: American Society of Mechanical Engineers
Paper No: ICES2003-0626
https://doi.org/10.1115/ICES2003-0626
View Paper titled, Methods for Specific Emission Evaluation in SI Engines Based on Calculation Procedures of Air-Fuel Ratio: Development, Assessment and Critical Comparison
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Topics: Emissions, Fuels, Spark-ignition engine, Exhaust systems, Algorithms, Brakes, Combustion, Engines, Gasoline, Carbon dioxide
Proceedings Papers

A Comprehensive Thermodynamic Approach to Acoustic Cavitation Simulation in High-Pressure Injection Systems by a Conservative Homogeneous Barotropic-Flow Model

Andrea E. Catania, Alessandro Ferrari, Michele Manno, Ezio Spessa
Proc. ASME. ICERT2003, Design and Control of Diesel and Natural Gas Engines for Industrial and Rail Transportation Applications, 283-294, September 7–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2003-0760
https://doi.org/10.1115/ICEF2003-0760
View Paper titled, A Comprehensive Thermodynamic Approach to Acoustic Cavitation Simulation in High-Pressure Injection Systems by a Conservative Homogeneous Barotropic-Flow Model
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Topics: Acoustics, Cavitation, Flow (Dynamics), High pressure (Physics), Simulation, Computer simulation, Wave propagation, Compressibility, Ejectors, Equilibrium (Physics)
Journal Articles

Numerical-Experimental Study and Solutions to Reduce the Dwell-Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type CR System

Andrea E. Catania, Alessandro Ferrari, Ezio Spessa
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022804.
https://doi.org/10.1115/1.2938394
Published Online: December 22, 2008
View Article titled, Numerical-Experimental Study and Solutions to Reduce the Dwell-Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type CR System
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Topics: Ejectors, Flow (Dynamics), Fuels, Needles, Nozzles, Pressure, Rails, Solenoids, Valves
Proceedings Papers

Analysis of Cyclic Variability in a Bi-Fuel Engine by Means of a ‘Cycle-Resolved’ Diagnostic Technique

Mirko Baratta, Stefano d’Ambrosio, Ezio Spessa, Alberto Vassallo
Proc. ASME. ICEF2005, ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005), 175-191, September 11–14, 2005
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2005-1214
https://doi.org/10.1115/ICEF2005-1214
View Paper titled, Analysis of Cyclic Variability in a Bi-Fuel Engine by Means of a ‘Cycle-Resolved’ Diagnostic Technique
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Topics: Cycles, Engines, Fuels, Combustion, Pressure, Delays, Exhaust systems, Flames, Gasoline, Heat transfer
Proceedings Papers

Flame Propagation Speed in SI Engines: Modeling and Experimental Assessment

Mirko Baratta, Andrea E. Catania, Ezio Spessa, Alberto Vassallo
Proc. ASME. ICEF2005, ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005), 193-208, September 11–14, 2005
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2005-1216
https://doi.org/10.1115/ICEF2005-1216
View Paper titled, Flame Propagation Speed in SI Engines: Modeling and Experimental Assessment
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Topics: Flames, Modeling, Spark-ignition engine, Combustion, Cylinders, Engines, Fuels, Turbulence, Cycles, Heat
Proceedings Papers

Cycle-Resolved Detection of Combustion Start in SI Engines by Means of Different In-Cylinder Pressure Data Reduction Techniques

Mirko Baratta, Stefano d’Ambrosio, Ezio Spessa, Alberto Vassallo
Proc. ASME. ICES2006, ASME 2006 Internal Combustion Engine Division Spring Technical Conference (ICES2006), 303-316, May 7–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICES2006-1367
https://doi.org/10.1115/ICES2006-1367
View Paper titled, Cycle-Resolved Detection of Combustion Start in SI Engines by Means of Different In-Cylinder Pressure Data Reduction Techniques
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Topics: Combustion, Cycles, Cylinders, Pressure, Spark-ignition engine, Chemical energy, Fuels, Gasoline, Compression, Engines
Proceedings Papers

Numerical-Experimental Study and Solutions to Reduce the Dwell Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type C.R. System

Andrea Emilio Catania, Alessandro Ferrari, Ezio Spessa
Proc. ASME. ICES2006, ASME 2006 Internal Combustion Engine Division Spring Technical Conference (ICES2006), 317-332, May 7–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICES2006-1369
https://doi.org/10.1115/ICES2006-1369
View Paper titled, Numerical-Experimental Study and Solutions to Reduce the Dwell Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type C.R. System
Open the PDF for Numerical-Experimental Study and Solutions to Reduce the Dwell Time Threshold for Fusion-Free Consecutive Injections in a Multijet Solenoid-Type C.R. System in another window
Topics: Solenoids, Delays, Nozzles, Needles, Ejectors, Dynamics (Mechanics), Flow (Dynamics), Pressure, Common rail fuel injectors, Diesel