1-20 of 26
Timothy J. Jacobs
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Cycle-by-Cycle Modeling of Integral Compressor Engines for Real-Time Emissions Control

Kevin Wallace, Timothy J. Jacobs
Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T01A009, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-110401
https://doi.org/10.1115/ICEF2023-110401
View Paper titled, Cycle-by-Cycle Modeling of Integral Compressor Engines for Real-Time Emissions Control
Open the PDF for Cycle-by-Cycle Modeling of Integral Compressor Engines for Real-Time Emissions Control in another window
Topics: Air pollution control, Compressors, Cycles, Emissions, Engines, Modeling
Proceedings Papers

Study of NO x Formation at Lean Conditions in a Prechamber-Ignited Two-Stroke Natural Gas Engine

Jacob Nowlin, Mark Patterson, Timothy J. Jacobs
Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T01A006, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-109975
https://doi.org/10.1115/ICEF2023-109975
View Paper titled, Study of NO x Formation at Lean Conditions in a Prechamber-Ignited Two-Stroke Natural Gas Engine
Open the PDF for Study of NO x Formation at Lean Conditions in a Prechamber-Ignited Two-Stroke Natural Gas Engine in another window
Topics: Emissions, Engines, Gas engines, Nitrogen oxides, Temperature, Cycles, Computational fluid dynamics, Cylinders, Simulation, Combustion chambers
Journal Articles

Combustion Variability Monitoring in Engines Using High-Speed Exhaust Temperature and Pressure Measurements

Abdullah U. Bajwa, Mark A. Patterson, Timothy J. Jacobs
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061020.
Paper No: GTP-22-1546
https://doi.org/10.1115/1.4056636
Published Online: February 15, 2023
View Article titled, Combustion Variability Monitoring in Engines Using High-Speed Exhaust Temperature and Pressure Measurements
Open the PDF for Combustion Variability Monitoring in Engines Using High-Speed Exhaust Temperature and Pressure Measurements in another window
Topics: Combustion, Cycles, Engines, Exhaust systems, Pressure, Temperature, Cylinders
Proceedings Papers

Use of a Thermodynamic Cycle Simulation to Identify Fundamental Thermodynamic Factors of NO x Formation in a Natural Gas Engine

Kevin L. Wallace, Jerald A. Caton, Timothy J. Jacobs
Proc. ASME. ICEF2020, ASME 2020 Internal Combustion Engine Division Fall Technical Conference, V001T01A003, November 4–6, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2020-2928
https://doi.org/10.1115/ICEF2020-2928
View Paper titled, Use of a Thermodynamic Cycle Simulation to Identify Fundamental Thermodynamic Factors of NO x Formation in a Natural Gas Engine
Open the PDF for Use of a Thermodynamic Cycle Simulation to Identify Fundamental Thermodynamic Factors of NO x Formation in a Natural Gas Engine in another window
Topics: Gas engines, Nitrogen oxides, Simulation, Thermodynamic cycles, Emissions, Compressors, Engines, Temperature, Air pollution control, Combustion
Journal Articles

Estimating Laminar Flame Speed and Ignition Delay for a Series of Natural Gas Mixtures at IC Engine-Relevant Conditions

Kelsey Fieseler, Taylor Linker, Mark Patterson, Daniel Rem, Timothy J. Jacobs
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. June 2020, 142(6): 062301.
Paper No: JERT-19-1541
https://doi.org/10.1115/1.4045536
Published Online: December 10, 2019
View Article titled, Estimating Laminar Flame Speed and Ignition Delay for a Series of Natural Gas Mixtures at IC Engine-Relevant Conditions
Open the PDF for Estimating Laminar Flame Speed and Ignition Delay for a Series of Natural Gas Mixtures at IC Engine-Relevant Conditions in another window
Topics: Engines, Flames, Fuels, Ignition delay, Methane, Natural gas, Pressure, Temperature, Combustion
Proceedings Papers

A Literature Review of NO x Formation Kinetics and a Prediction Method for Lean-Burn, Two-Stroke Natural Gas Engines

Taylor F. Linker, Mark Patterson, Greg Beshouri, Abdullah U. Bajwa, Timothy J. Jacobs
Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T01A003, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7193
https://doi.org/10.1115/ICEF2019-7193
View Paper titled, A Literature Review of NO x Formation Kinetics and a Prediction Method for Lean-Burn, Two-Stroke Natural Gas Engines
Open the PDF for A Literature Review of NO x Formation Kinetics and a Prediction Method for Lean-Burn, Two-Stroke Natural Gas Engines in another window
Topics: Gas engines, Nitrogen oxides, Engines, Emissions, Compressors, Natural gas, Fuels, Pipelines, Chemical properties, Combustion
Proceedings Papers

A New Single-Zone Multi-Stage Scavenging Model for Real-Time Emissions Control in Two-Stroke Engines

Abdullah U. Bajwa, Mark Patterson, Taylor Linker, Timothy J. Jacobs
Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T01A004, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7198
https://doi.org/10.1115/ICEF2019-7198
View Paper titled, A New Single-Zone Multi-Stage Scavenging Model for Real-Time Emissions Control in Two-Stroke Engines
Open the PDF for A New Single-Zone Multi-Stage Scavenging Model for Real-Time Emissions Control in Two-Stroke Engines in another window
Topics: Air pollution control, Two-stroke engines, Gases, Cylinders, Combustion, Boundary-value problems, Combustion chambers, Cycles, Displacement, Emissions
Journal Articles

Comparison of Diesel Engine Efficiency and Combustion Characteristics Between Different Bore Engines

Jue Li, Timothy J. Jacobs, Tushar Bera, Michael A. Parkes
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102807.
Paper No: GTP-17-1225
https://doi.org/10.1115/1.4040092
Published Online: June 25, 2018
View Article titled, Comparison of Diesel Engine Efficiency and Combustion Characteristics Between Different Bore Engines
Open the PDF for Comparison of Diesel Engine Efficiency and Combustion Characteristics Between Different Bore Engines in another window
Topics: Combustion, Cylinders, Engines, Fuels, Stress, Heat transfer, Pressure
Journal Articles

Kinematics of an Articulated Connecting Rod and Its Effect on Simulated Compression Pressures and Port Timings

Kelsey Fieseler, Timothy J. Jacobs, Mark Patterson
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092803.
Paper No: GTP-18-1087
https://doi.org/10.1115/1.4039831
Published Online: May 24, 2018
View Article titled, Kinematics of an Articulated Connecting Rod and Its Effect on Simulated Compression Pressures and Port Timings
Open the PDF for Kinematics of an Articulated Connecting Rod and Its Effect on Simulated Compression Pressures and Port Timings in another window
Topics: Compression, Compressors, Cylinders, Engines, Pistons, Simulation, Kinematics, Modeling
Proceedings Papers

Kinematics of an Articulated Connecting Rod and its Effect on Simulated Compression Pressures and Port Timings

Kelsey Fieseler, Timothy J. Jacobs, Mark Patterson
Proc. ASME. ICEF2017, Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, V002T07A013, October 15–18, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2017-3670
https://doi.org/10.1115/ICEF2017-3670
View Paper titled, Kinematics of an Articulated Connecting Rod and its Effect on Simulated Compression Pressures and Port Timings
Open the PDF for Kinematics of an Articulated Connecting Rod and its Effect on Simulated Compression Pressures and Port Timings in another window
Topics: Compression, Kinematics, Pistons, Engines, Cylinders, Compressors, Pressure, Exhaust systems, Geometry, Hinges
Proceedings Papers

Combustion Characteristics of a 2-Stroke Large Bore Natural Gas Spark-Ignited Engine

Aaron A. Griffin, Timothy J. Jacobs
Proc. ASME. ICEF2015, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T01A002, November 8–11, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2015-1010
https://doi.org/10.1115/ICEF2015-1010
View Paper titled, Combustion Characteristics of a 2-Stroke Large Bore Natural Gas Spark-Ignited Engine
Open the PDF for Combustion Characteristics of a 2-Stroke Large Bore Natural Gas Spark-Ignited Engine in another window
Topics: Combustion, Engines, Natural gas, Stress, Cycles, Emissions, Pressure, Compression, Cylinders, Pressure measurement
Proceedings Papers

Combustion Trajectory Visualization Model for Study of Conventional and Advanced Direct Injection Combustion Modes

Joshua A. Bittle, Timothy J. Jacobs
Proc. ASME. ICEF2015, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T03A004, November 8–11, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2015-1031
https://doi.org/10.1115/ICEF2015-1031
View Paper titled, Combustion Trajectory Visualization Model for Study of Conventional and Advanced Direct Injection Combustion Modes
Open the PDF for Combustion Trajectory Visualization Model for Study of Conventional and Advanced Direct Injection Combustion Modes in another window
Topics: Combustion, Trajectories (Physics), Visualization, Cylinders, Engines, Temperature, Pressure, Sprays, Diesel, Fuels
Proceedings Papers

Zero Dimensional Quasi-Predictive Thermodynamic Simulation for Establishing Initial Cylinder Conditions for CFD Simulation of Diesel Combustion

Ryan A. Bandura, Timothy J. Jacobs
Proc. ASME. ICEF2015, Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, V002T06A020, November 8–11, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2015-1166
https://doi.org/10.1115/ICEF2015-1166
View Paper titled, Zero Dimensional Quasi-Predictive Thermodynamic Simulation for Establishing Initial Cylinder Conditions for CFD Simulation of Diesel Combustion
Open the PDF for Zero Dimensional Quasi-Predictive Thermodynamic Simulation for Establishing Initial Cylinder Conditions for CFD Simulation of Diesel Combustion in another window
Topics: Combustion, Computational fluid dynamics, Cylinders, Diesel, Simulation, Temperature, Heat, Pressure, Sprays, Fuels
Journal Articles

Waste Heat Recovery Potential of Advanced Internal Combustion Engine Technologies

Timothy J. Jacobs
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. July 2015, 137(4): 042004.
Paper No: JERT-14-1379
https://doi.org/10.1115/1.4030108
Published Online: July 1, 2015
View Article titled, Waste Heat Recovery Potential of Advanced Internal Combustion Engine Technologies
Open the PDF for Waste Heat Recovery Potential of Advanced Internal Combustion Engine Technologies in another window
Topics: Biodiesel, Combustion, Engines, Exergy, Exhaust gas recirculation, Exhaust systems, Flow (Dynamics), Fuels, Internal combustion engines, Temperature
Proceedings Papers

Validation and Results of a Pseudo-Multi-Zone Combustion Trajectory Prediction Model for Capturing Soot and NOx Formation on a Medium Duty Diesel Engine

Joshua A. Bittle, Zhiming Gao, Timothy J. Jacobs
Proc. ASME. ICEF2013, Volume 1: Large Bore Engines; Advanced Combustion; Emissions Control Systems; Instrumentation, Controls, and Hybrids, V001T03A009, October 13–16, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2013-19069
https://doi.org/10.1115/ICEF2013-19069
View Paper titled, Validation and Results of a Pseudo-Multi-Zone Combustion Trajectory Prediction Model for Capturing Soot and NOx Formation on a Medium Duty Diesel Engine
Open the PDF for Validation and Results of a Pseudo-Multi-Zone Combustion Trajectory Prediction Model for Capturing Soot and NOx Formation on a Medium Duty Diesel Engine in another window
Topics: Combustion, Diesel engines, Nitrogen oxides, Soot, Trajectories (Physics), Engines, Emissions, Low temperature, Calibration, Temperature
Proceedings Papers

Cyclic Variability in Diesel/Gasoline Dual-Fuel Combustion on a Medium-Duty Diesel Engine

Jiafeng Sun, Joshua A. Bittle, Timothy J. Jacobs
Proc. ASME. ICEF2013, Volume 1: Large Bore Engines; Advanced Combustion; Emissions Control Systems; Instrumentation, Controls, and Hybrids, V001T03A011, October 13–16, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2013-19095
https://doi.org/10.1115/ICEF2013-19095
View Paper titled, Cyclic Variability in Diesel/Gasoline Dual-Fuel Combustion on a Medium-Duty Diesel Engine
Open the PDF for Cyclic Variability in Diesel/Gasoline Dual-Fuel Combustion on a Medium-Duty Diesel Engine in another window
Topics: Combustion, Diesel, Diesel engines, Fuels, Gasoline
Proceedings Papers

Improvement in Lean Homogenous Spark-Ignition Combustion With Pulsed Energy Spark Plug

Timothy J. Jacobs, Louis J. Camilli, Joseph E. Gonnella
Proc. ASME. ICEF2012, ASME 2012 Internal Combustion Engine Division Fall Technical Conference, 439-445, September 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2012-92165
https://doi.org/10.1115/ICEF2012-92165
View Paper titled, Improvement in Lean Homogenous Spark-Ignition Combustion With Pulsed Energy Spark Plug
Open the PDF for Improvement in Lean Homogenous Spark-Ignition Combustion With Pulsed Energy Spark Plug in another window
Topics: Combustion, Ignition, Internal combustion engines, Fuels, Bombs, Capacitors, Energy transformation, Engines, Homogeneous charge compression ignition engines, Ignition delay
Proceedings Papers

An Analytical Model to Predict Nitric Oxide Concentration and Soot Emissivity in a Diesel Engine

Hoseok Song, Brandon T. Tompkins, Timothy J. Jacobs
Proc. ASME. ICEF2011, ASME 2011 Internal Combustion Engine Division Fall Technical Conference, 883-891, October 2–5, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2011-60112
https://doi.org/10.1115/ICEF2011-60112
View Paper titled, An Analytical Model to Predict Nitric Oxide Concentration and Soot Emissivity in a Diesel Engine
Open the PDF for An Analytical Model to Predict Nitric Oxide Concentration and Soot Emissivity in a Diesel Engine in another window
Topics: Diesel engines, Emissivity, Soot, Temperature, Combustion, Cylinders, Emissions, Engines, Gases, Modeling
Proceedings Papers

Particulate Matter Emissions From Late Injection High EGR Low Temperature Diesel Combustion

Brandon T. Tompkins, Hoseok Song, Timothy J. Jacobs
Proc. ASME. ICEF2011, ASME 2011 Internal Combustion Engine Division Fall Technical Conference, 373-381, October 2–5, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2011-60067
https://doi.org/10.1115/ICEF2011-60067
View Paper titled, Particulate Matter Emissions From Late Injection High EGR Low Temperature Diesel Combustion
Open the PDF for Particulate Matter Emissions From Late Injection High EGR Low Temperature Diesel Combustion in another window
Topics: Combustion, Diesel, Emissions, Exhaust gas recirculation, Low temperature, Particulate matter, Soot, Blocks (Building materials), Diesel engines, Engines
Proceedings Papers

Efficiency Considerations of Later-Phased Low Temperature Diesel Combustion

Bryan M. Knight, Joshua A. Bittle, Timothy J. Jacobs
Proc. ASME. ICEF2010, ASME 2010 Internal Combustion Engine Division Fall Technical Conference, 359-368, September 12–15, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2010-35070
https://doi.org/10.1115/ICEF2010-35070
View Paper titled, Efficiency Considerations of Later-Phased Low Temperature Diesel Combustion
Open the PDF for Efficiency Considerations of Later-Phased Low Temperature Diesel Combustion in another window
Topics: Combustion, Diesel, Low temperature, Brakes, Fuels, Exhaust systems, Friction, Heat transfer, Carbon, Diesel engines