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Journal Articles

Determination of Enthalpy and Entropy of Per- and Polyfluoroalkyl Substances

Open Access
Zhenyu Lu, Hui He, Philip Pedros, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2025, 4: 041011.
Paper No: AOJE-25-1037
https://doi.org/10.1115/1.4068541
Published Online: May 13, 2025
View Articletitled, Determination of Enthalpy and Entropy of Per- and Polyfluoroalkyl Substances
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Topics: Enthalpy, NASA, Polynomials, Heat capacity, Statistical mechanics, Entropy, Temperature
Journal Articles

Estimation of the Thermodynamic Properties of Per- and Polyfluoroalkyl Substances

Open Access
Zhenyu Lu, Hui He, Philip Pedros, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2025, 4: 041009.
Paper No: AOJE-25-1023
https://doi.org/10.1115/1.4068216
Published Online: April 2, 2025
View Articletitled, Estimation of the Thermodynamic Properties of Per- and Polyfluoroalkyl Substances
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Topics: Enthalpy, Heat capacity, Temperature, Thermodynamic properties, Gibbs' free energy, Atoms, Combustion, Water, Entropy, Statistical mechanics
Journal Articles

A Brayton Pumped Thermal Energy Storage System Based on Supercritical Carbon Dioxide Recompression Reheating Discharge Cycle

Open Access
Dongchuan You, Akif Eren Tatli, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2025, 4: 041002.
Paper No: AOJE-24-1125
https://doi.org/10.1115/1.4067446
Published Online: January 28, 2025
View Articletitled, A Brayton Pumped Thermal Energy Storage System Based on Supercritical Carbon Dioxide Recompression Reheating Discharge Cycle
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Topics: Cycles, Fluids, Pressure, Temperature, Supercritical carbon dioxide, Thermal energy storage, Turbines
Proceedings Papers

Mechanical Engineering Curriculum Modifications and Adaptions to Address Climate Mitigation and Changes in the Energy Mix

Available to Purchase

Mansour Zenouzi, Gregory J. Kowalski, Hameed Metghalchi
Proc. ASME. IMECE2024, Volume 7: Engineering Education, V007T09A032, November 17–21, 2024
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2024-146114
https://doi.org/10.1115/IMECE2024-146114
View Paper titled, Mechanical Engineering Curriculum Modifications and Adaptions to Address Climate Mitigation and Changes in the Energy Mix
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Topics: Climate, Mechanical engineering, Combined heat and power, Carbon, Climate change, Emissions, Energy consumption, Renewable energy, Students, Artificial intelligence
Journal Articles

Investigation of the Flame Stability and Laminar Burning Speed of Propylene/Air/Carbon Dioxide Mixtures Under Conditions of Elevated Temperatures and Pressures

Open Access
Zhenyu Lu, Hameed Metghalchi
Journal: Journal of Energy Resources Technology, Part A: Sustainable and Renewable Energy
Publisher: ASME
Article Type: Research Papers
J. Energy Res. Technol. Part A. March 2025, 1(2): 022302.
Paper No: JERTA-24-1014
https://doi.org/10.1115/1.4066939
Published Online: December 23, 2024
View Articletitled, Investigation of the Flame Stability and Laminar Burning Speed of Propylene/Air/Carbon Dioxide Mixtures Under Conditions of Elevated Temperatures and Pressures
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Journal Articles

Optimizing Supercritical Carbon Dioxide Cycles Performance With Respect to Split Ratio and Intermediate Pressure

Open Access
Akif Eren Tatli, Dongchuan You, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2024, 3: 031026.
Paper No: AOJE-24-1089
https://doi.org/10.1115/1.4066683
Published Online: October 11, 2024
View Articletitled, Optimizing Supercritical Carbon Dioxide Cycles Performance With Respect to Split Ratio and Intermediate Pressure
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Topics: Cycles, Pressure, Cooling
Journal Articles

Cavitation and Pulsation Reduction for External Gear Pumps Using Novel Core-Feed Inlets and Outlets: An Integrated Experimental and Numerical Study

Available to Purchase
Farhad Sedri, Alireza Riasi, Alireza Mahdavi Nejad, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. October 2024, 146(10): 102102.
Paper No: JERT-24-1322
https://doi.org/10.1115/1.4065759
Published Online: July 26, 2024
View Articletitled, Cavitation and Pulsation Reduction for External Gear Pumps Using Novel Core-Feed Inlets and Outlets: An Integrated Experimental and Numerical Study
Open the PDF for Cavitation and Pulsation Reduction for External Gear Pumps Using Novel Core-Feed Inlets and Outlets: An Integrated Experimental and Numerical Study in another window
Topics: Cavitation, Fluids, Gear pumps, Gears, Pressure, Pumps, Flow (Dynamics), Torque
Journal Articles

E-Fuels as Reduced Carbon Emission Options

Open Access
Carolyn Huey, Hameed Metghalchi, Yiannis Levendis
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2024, 3: 031017.
Paper No: AOJE-24-1059
https://doi.org/10.1115/1.4065731
Published Online: July 5, 2024
View Articletitled, E-Fuels as Reduced Carbon Emission Options
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Topics: Carbon, Fuels, Emissions, Hydrogen, Combustion, Fuel cells
Journal Articles

Measurement of Laminar Burning Speed of Methane/Hydrogen/Air Mixtures at High Pressures and Temperatures

Open Access
Zhenyu Lu, Yusheng Zhang, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2024, 3: 031016.
Paper No: AOJE-24-1046
https://doi.org/10.1115/1.4065620
Published Online: July 2, 2024
View Articletitled, Measurement of Laminar Burning Speed of Methane/Hydrogen/Air Mixtures at High Pressures and Temperatures
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Topics: Combustion, Flames, Hydrogen, Methane, Moles, Pressure, Temperature
Journal Articles

Effects of Intermediate Pressure and Split Ratio on Supercritical Modified Recompression Cycles Performance

Open Access
Akif Eren Tatli, Dongchuan You, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2024, 3: 031015.
Paper No: AOJE-24-1051
https://doi.org/10.1115/1.4065528
Published Online: May 30, 2024
View Articletitled, Effects of Intermediate Pressure and Split Ratio on Supercritical Modified Recompression Cycles Performance
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Topics: Cycles, Pressure, Thermal efficiency, Cooling, Fluids
Journal Articles

Prediction of Laminar Burning Speed of Propane/Hydrogen/Air Mixtures Using Power-Law Correlation and Two Machine Learning Models

Open Access
Zhenyu Lu, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2023, 2: 021038.
Paper No: AOJE-23-1055
https://doi.org/10.1115/1.4062745
Published Online: July 18, 2023
View Articletitled, Prediction of Laminar Burning Speed of Propane/Hydrogen/Air Mixtures Using Power-Law Correlation and Two Machine Learning Models
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Topics: Artificial neural networks, Combustion, Hydrogen, Pressure, Temperature, Support vector machines, Machine learning
Journal Articles

Insight Into Recompression Brayton Cycle

Open Access
Akif Eren Tatli, Dongchuan You, Ashkan Ghanavati, Hameed Metghalchi
Journal: ASME Open Journal of Engineering
Publisher: ASME
Article Type: Research Papers
ASME Open J. Engineering. January 2023, 2: 021023.
Paper No: AOJE-23-1011
https://doi.org/10.1115/1.4062258
Published Online: April 17, 2023
View Articletitled, Insight Into Recompression Brayton Cycle
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Topics: Brayton cycle, Cycles, Entropy, Pressure, Temperature, Turbines, Exergy, Thermodynamics, Low temperature
Journal Articles

Theoretical Prediction of Laminar Burning Speed of Normal-Decane and Jet Propellant 8

Available to Purchase
Zhenyu Lu, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. January 2023, 145(1): 012301.
Paper No: JERT-22-1421
https://doi.org/10.1115/1.4054789
Published Online: June 27, 2022
View Articletitled, Theoretical Prediction of Laminar Burning Speed of Normal-Decane and Jet Propellant 8
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Topics: Combustion, Propellants, Pressure, Fuels
Journal Articles

Current Advancement of Heliostats

Available to Purchase
Joshua Weissert, Yu Zhou, Dongchuan You, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Review Articles
J. Energy Resour. Technol. December 2022, 144(12): 120801.
Paper No: JERT-22-1398
https://doi.org/10.1115/1.4054738
Published Online: June 24, 2022
View Articletitled, Current Advancement of Heliostats
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Topics: Design, Mirrors, Optics, Optimization, Stress, Wind, Manufacturing, Solar towers, Concentrating solar power, Coatings
Proceedings Papers

Numerical Simulation of a Closed Solar Regenerator

Available to Purchase

Hans F. Valencia, Hameed Metghalchi
Proc. ASME. IMECE97, Advanced Energy Systems, 265-270, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0997
https://doi.org/10.1115/IMECE1997-0997
View Paper titled, Numerical Simulation of a Closed Solar Regenerator
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Topics: Computer simulation, Solar energy, Differential equations, Glass, Temperature, Absorption, Climate, Contamination, Flow (Dynamics), Mass transfer
Journal Articles

Design and Analysis of a Solar Energy Driven Tri-Generation Plant for Power, Heating, and Refrigeration

Available to Purchase
Dongchuan You, Akif Eren Tatli, Ashkan Ghanavati, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. August 2022, 144(8): 082105.
Paper No: JERT-21-1852
https://doi.org/10.1115/1.4052981
Published Online: November 25, 2021
View Articletitled, Design and Analysis of a Solar Energy Driven Tri-Generation Plant for Power, Heating, and Refrigeration
Open the PDF for Design and Analysis of a Solar Energy Driven Tri-Generation Plant for Power, Heating, and Refrigeration in another window
Topics: Generators, Heating, Pressure, Temperature, Stress, Lithium, Refrigeration, Solar energy, Carbon dioxide
Journal Articles

Analysis of Aqueous Lithium Bromide Absorption Refrigeration Systems

Available to Purchase
Dongchuan You, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. January 2022, 144(1): 012105.
Paper No: JERT-21-1301
https://doi.org/10.1115/1.4050906
Published Online: May 13, 2021
View Articletitled, Analysis of Aqueous Lithium Bromide Absorption Refrigeration Systems
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Topics: Temperature, Generators, Absorption, Condensers (steam plant), Refrigeration, Lithium, Cycles
Journal Articles

On the Supercritical Carbon Dioxide Recompression Cycle

Available to Purchase
Dongchuan You, Hameed Metghalchi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. December 2021, 143(12): 121701.
Paper No: JERT-21-1184
https://doi.org/10.1115/1.4050888
Published Online: May 7, 2021
View Articletitled, On the Supercritical Carbon Dioxide Recompression Cycle
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Topics: Cycles, Pressure, Temperature, Thermal efficiency, Supercritical carbon dioxide, Brayton cycle
Proceedings Papers

An Artificial Intelligence Approach to Real-Time Energy System Performance Monitoring Using Acoustic Signals

Available to Purchase

Valdir Aliati, Hameed Metghalchi, Jon Wallace
Proc. ASME. IMECE2020, Volume 8: Energy, V008T08A016, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-24195
https://doi.org/10.1115/IMECE2020-24195
View Paper titled, An Artificial Intelligence Approach to Real-Time Energy System Performance Monitoring Using Acoustic Signals
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Topics: Acoustics, Artificial intelligence, Signals, Trains, Aircraft, Aircraft propulsion, Algorithms, Artificial neural networks, Climate change, Combustion
Journal Articles

Thermodynamic Study on Blends of Hydrocarbons and Carbon Dioxide as Zeotropic Refrigerants

Available to Purchase
Sai C. Yelishala, Kumaran Kannaiyan, Ziyu Wang, Hameed Metghalchi, Yiannis A. Levendis, Reza Sadr
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. August 2020, 142(8): 082304.
Paper No: JERT-19-1855
https://doi.org/10.1115/1.4045930
Published Online: February 24, 2020
View Articletitled, Thermodynamic Study on Blends of Hydrocarbons and Carbon Dioxide as Zeotropic Refrigerants
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Topics: Carbon dioxide, Refrigerants, Temperature, Cycles, Heat, Fluids
Includes: Supplementary data