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Proceedings Papers

Predicting Diesel Engine Cetane Number and Similarity for Newer Commercial Sustainable Aviation Fuels

Jim Cowart, Terrence Dickerson, Dianne Luning Prak
Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T02A004, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-109879
https://doi.org/10.1115/ICEF2023-109879
View Paper titled, Predicting Diesel Engine Cetane Number and Similarity for Newer Commercial Sustainable Aviation Fuels
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Topics: Diesel engines, Jet fuels, Machine learning, Sustainable aviation fuels, Fuels, Errors, Databases, Chemical properties, Density, Self-organizing maps
Proceedings Papers

Using Machine Learning to Predict Derived Cetane Number and Fuel Similarity

Jim Cowart, Terrence Dickerson, Andy McDaniel, Dianne Luning Prak
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T02A004, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-89295
https://doi.org/10.1115/ICEF2022-89295
View Paper titled, Using Machine Learning to Predict Derived Cetane Number and Fuel Similarity
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Topics: Fuels, Machine learning
Proceedings Papers

A Fundamental Thermodynamic Investigation of Compression Ratio Effects in Relation to Diesel Engine Size

Kevin Burnett, Ashwani Gupta, Dianne Luning Prak, Jim Cowart
Proc. ASME. ICEF2021, ASME 2021 Internal Combustion Engine Division Fall Technical Conference, V001T05A002, October 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2021-67511
https://doi.org/10.1115/ICEF2021-67511
View Paper titled, A Fundamental Thermodynamic Investigation of Compression Ratio Effects in Relation to Diesel Engine Size
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Topics: Compression, Diesel engines, Engines, Convection, Cylinders, Enthalpy, Exhaust systems, Heat losses, Heat transfer, Internal combustion engines
Proceedings Papers

Primary & Secondary Reference Fuel Effects as a Function of Compression Ratio in a CFR Diesel Engine

Kevin Burnett, Ashwani Gupta, Dianne Luning Prak, Jim Cowart
Proc. ASME. ICEF2021, ASME 2021 Internal Combustion Engine Division Fall Technical Conference, V001T04A002, October 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2021-67395
https://doi.org/10.1115/ICEF2021-67395
View Paper titled, Primary & Secondary Reference Fuel Effects as a Function of Compression Ratio in a CFR Diesel Engine
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Topics: Compression, Diesel engines, Fuels
Proceedings Papers

The Relationship Between Steady-State Cetane Combustion Changes and Cold Start Engine Performance

Gretchen Simms, Sean Fischer, Jay Cooke, Len Hamilton, Dianne Luning Prak, Jim Cowart
Proc. ASME. ICEF2020, ASME 2020 Internal Combustion Engine Division Fall Technical Conference, V001T02A001, November 4–6, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2020-2907
https://doi.org/10.1115/ICEF2020-2907
View Paper titled, The Relationship Between Steady-State Cetane Combustion Changes and Cold Start Engine Performance
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Topics: Combustion, Diesel engines, Engines, Steady state, Fuels, Heat, Ignition delay, Diesel, Engine start-up, Navy
Proceedings Papers

Diesel Engine Acoustic Diagnostics With Machine Learning During Various Degradation Modes

Patrick Moore, Dianne Luning Prak, Len Hamilton, Jim Cowart
Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T05A001, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7120
https://doi.org/10.1115/ICEF2019-7120
View Paper titled, Diesel Engine Acoustic Diagnostics With Machine Learning During Various Degradation Modes
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Topics: Acoustics, Diesel engines, Machine learning, Engines, Combustion, Cylinders, Acoustic emissions, Air filters, Artificial neural networks, Errors
Journal Articles

Diesel Engine Acoustic Emission Airflow Clogging Diagnostics With Machine Learning

Jim Cowart, Patrick Moore, Harrison Yosten, Leonard Hamilton, Dianne Luning Prak
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071021.
Paper No: GTP-19-1119
https://doi.org/10.1115/1.4043332
Published Online: April 15, 2019
View Article titled, Diesel Engine Acoustic Emission Airflow Clogging Diagnostics With Machine Learning
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Topics: Acoustic emissions, Acoustics, Air flow, Artificial neural networks, Combustion, Diesel engines, Engines, Machine learning, Microphones, Laptop computers
Proceedings Papers

Diesel Engine Acoustic Emission Airflow Clogging Diagnostics With Machine Learning

Jim Cowart, Patrick Moore, Harrison Yosten, Leonard Hamilton, Dianne Luning Prak
Proc. ASME. ICEF2018, Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, V002T05A008, November 4–7, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2018-9601
https://doi.org/10.1115/ICEF2018-9601
View Paper titled, Diesel Engine Acoustic Emission Airflow Clogging Diagnostics With Machine Learning
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Topics: Acoustic emissions, Air flow, Diesel engines, Machine learning, Engines, Combustion, Acoustics, Cylinders, Air filters, Artificial neural networks
Journal Articles

Partially Premixed Combustion Application for Diesel Power Improvement

Michael Walker, Robert Kelso, Kevin Bowes, Len Hamilton, Dianne Luning Prak, Jim Cowart
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092801.
Paper No: GTP-18-1082
https://doi.org/10.1115/1.4039809
Published Online: May 24, 2018
View Article titled, Partially Premixed Combustion Application for Diesel Power Improvement
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Topics: Combustion, Engines, Exhaust systems, Fuels, Stress, Diesel, Cylinders, Compression, Soot, Nitrogen oxides
Proceedings Papers

Homogenous Charge Compression Ignition (HCCI) Operation With Jet Fuel and Water Injection in a Single Cylinder Diesel CFR Engine

Jim Cowart, Kevin Bowes, Michael Walker, Len Hamilton, Dianne Luning Prak
Proc. ASME. ICEF2017, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T03A016, October 15–18, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2017-3653
https://doi.org/10.1115/ICEF2017-3653
View Paper titled, Homogenous Charge Compression Ignition (HCCI) Operation With Jet Fuel and Water Injection in a Single Cylinder Diesel CFR Engine
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Topics: Compression, Cylinders, Diesel, Engines, Homogeneous charge compression ignition engines, Ignition, Jet fuels, Underground injection, Combustion, Stress
Proceedings Papers

Partially Premixed Combustion Application for Diesel Power Improvement

Michael Walker, Robert Kelso, Kevin Bowes, Len Hamilton, Dianne Luning Prak, Jim Cowart
Proc. ASME. ICEF2017, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T03A005, October 15–18, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2017-3544
https://doi.org/10.1115/ICEF2017-3544
View Paper titled, Partially Premixed Combustion Application for Diesel Power Improvement
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Topics: Combustion, Diesel, Engines, Exhaust systems, Particulate matter, Emissions, Carbon, Cylinders, Jet fuels, Nitrogen oxides
Proceedings Papers

A Comparative Study of Alternative and Conventional Diesel Combustion Modes in a Single Cylinder Engine With a Single Injection Event

Jim Cowart, Len Hamilton, Dianne Luning Prak
Proc. ASME. ICEF2016, ASME 2016 Internal Combustion Engine Division Fall Technical Conference, V001T03A009, October 9–12, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2016-9372
https://doi.org/10.1115/ICEF2016-9372
View Paper titled, A Comparative Study of Alternative and Conventional Diesel Combustion Modes in a Single Cylinder Engine With a Single Injection Event
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Topics: Combustion, Diesel, Single-cylinder engines, Homogeneous charge compression ignition engines, Emissions, Fuels, Silicon-on-insulator, Engines, Valves, Carbon
Journal Articles

Startup and Steady-State Performance of a New Renewable Hydroprocessed Depolymerized Cellulosic Diesel Fuel in Multiple Diesel Engines

Eric Bermudez, Andrew McDaniel, Terrence Dickerson, Dianne Luning Prak, Len Hamilton, Jim Cowart
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2016, 138(10): 102807.
Paper No: GTP-16-1048
https://doi.org/10.1115/1.4032992
Published Online: April 12, 2016
View Article titled, Startup and Steady-State Performance of a New Renewable Hydroprocessed Depolymerized Cellulosic Diesel Fuel in Multiple Diesel Engines
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Topics: Combustion, Engines, Fuels, Steady state, Silicon-on-insulator, Diesel, Diesel engines, Cycles
Proceedings Papers

Start-Up and Steady-State Performance of a New Renewable Hydroprocessed Depolymerized Cellulosic Diesel (HDCD) Fuel in Multiple Diesel Engines

Eric Bermudez, Andrew McDaniel, Terrence Dickerson, Dianne Luning Prak, Len Hamilton, Jim Cowart
Proc. ASME. ICEF2015, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T02A008, November 8–11, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2015-1083
https://doi.org/10.1115/ICEF2015-1083
View Paper titled, Start-Up and Steady-State Performance of a New Renewable Hydroprocessed Depolymerized Cellulosic Diesel (HDCD) Fuel in Multiple Diesel Engines
Open the PDF for Start-Up and Steady-State Performance of a New Renewable Hydroprocessed Depolymerized Cellulosic Diesel (HDCD) Fuel in Multiple Diesel Engines in another window
Topics: Diesel, Diesel engines, Fuels, Steady state, Engines, Combustion, Cycles, Biomass, Bulk modulus, Feedstock
Journal Articles

The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine

Jim Cowart, Dianne Luning Prak, Len Hamilton
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2015, 137(10): 101501.
Paper No: GTP-15-1064
https://doi.org/10.1115/1.4029949
Published Online: October 1, 2015
View Article titled, The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine
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Topics: Combustion, Engines, Fuels, Pressure, Delays, Diesel, Modeling, Cylinders, Diesel engines, Silicon-on-insulator
Proceedings Papers

The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine

Jim Cowart, Dianne Luning Prak, Len Hamilton
Proc. ASME. ICEF2014, Volume 1: Large Bore Engines; Fuels; Advanced Combustion; Emissions Control Systems, V001T02A002, October 19–22, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2014-5449
https://doi.org/10.1115/ICEF2014-5449
View Paper titled, The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine
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Topics: Combustion, Diesel engines, Fuels, Pressure, Delays, Diesel, Engines, Common rail fuel injectors, Navy, Carbon
Journal Articles

An Experimental and Modeling Study Into Using Normal and Isocetane Fuel Blends as a Surrogate for a Hydroprocessed Renewable Diesel Fuel

Jim Cowart, Michael Raynes, Len Hamilton, Dianne Luning Prak, Marco Mehl, William Pitz
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. September 2014, 136(3): 032202.
Paper No: JERT-14-1010
https://doi.org/10.1115/1.4027408
Published Online: April 25, 2014
View Article titled, An Experimental and Modeling Study Into Using Normal and Isocetane Fuel Blends as a Surrogate for a Hydroprocessed Renewable Diesel Fuel
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Topics: Fuels, Modeling, Diesel, Combustion, Temperature, Engines, Stress
Proceedings Papers

An Experimental and Modeling Study Into Using Normal and ISO Cetane Fuel Blends as a Surrogate for a Hydro-Processed Renewable Diesel (HRD) Fuel

Jim Cowart, Michael Raynes, Len Hamilton, Dianne Luning Prak, Marco Mehl, William Pitz
Proc. ASME. ICEF2013, Volume 2: Fuels; Numerical Simulation; Engine Design, Lubrication, and Applications, V002T02A001, October 13–16, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2013-19056
https://doi.org/10.1115/ICEF2013-19056
View Paper titled, An Experimental and Modeling Study Into Using Normal and ISO Cetane Fuel Blends as a Surrogate for a Hydro-Processed Renewable Diesel (HRD) Fuel
Open the PDF for An Experimental and Modeling Study Into Using Normal and ISO Cetane Fuel Blends as a Surrogate for a Hydro-Processed Renewable Diesel (HRD) Fuel in another window
Topics: Diesel, Fuels, Modeling, Ignition delay, Combustion, Chain, Performance characterization, Single-cylinder engines, Testing
Proceedings Papers

Predicting the Physical and Chemical Ignition Delays in a Military Diesel Engine Running n-Hexadecane Fuel

Len Hamilton, Jim Cowart, Dianne Luning Prak
Proc. ASME. ICEF2013, Volume 2: Fuels; Numerical Simulation; Engine Design, Lubrication, and Applications, V002T06A007, October 13–16, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2013-19057
https://doi.org/10.1115/ICEF2013-19057
View Paper titled, Predicting the Physical and Chemical Ignition Delays in a Military Diesel Engine Running n-Hexadecane Fuel
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Topics: Diesel engines, Fuels, Ignition delay, Military systems, Engines, Delays, Modeling, Combustion, Diesel, Stress
Journal Articles

Predicting the Physical and Chemical Ignition Delays in a Military Diesel Engine Running n-Hexadecane Fuel

Len Hamilton, Dianne Luning Prak, Jim Cowart
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2014, 136(7): 071505.
Paper No: GTP-14-1030
https://doi.org/10.1115/1.4026657
Published Online: February 20, 2014
View Article titled, Predicting the Physical and Chemical Ignition Delays in a Military Diesel Engine Running n-Hexadecane Fuel
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Topics: Delays, Engines, Fuels, Ignition delay, Silicon-on-insulator, Stress, Modeling, Diesel engines, Military systems, Temperature