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Michael J. Wagner
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Journal Articles

Dynamic Simulation of a Molten Salt-Steam Superheater for Load-Following Applications

Jacob Wenner, Michael J. Wagner
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. February 2025, 147(1): 011005.
Paper No: SOL-24-1044
https://doi.org/10.1115/1.4065768
Published Online: July 19, 2024
View Article titled, Dynamic Simulation of a Molten Salt-Steam Superheater for Load-Following Applications
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Topics: Flow (Dynamics), Heat exchangers, Metals, Simulation, Steam, Stress, Superheaters, Temperature, Steady state, Shells
Journal Articles

Demonstrating solarpilot’s Python Application Programmable Interface Through Heliostat Optimal Aimpoint Strategy Use Case

William T. Hamilton, Michael J. Wagner, Alexander J. Zolan
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Technology Review
J. Sol. Energy Eng. June 2022, 144(3): 030906.
Paper No: SOL-21-1321
https://doi.org/10.1115/1.4053973
Published Online: March 18, 2022
View Article titled, Demonstrating solarpilot’s Python Application Programmable Interface Through Heliostat Optimal Aimpoint Strategy Use Case
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Topics: American Petroleum Institute, Computer software, Concentrating solar power, Graphical user interfaces, Optimization, Solar energy, Simulation, Modeling, Ray tracing, Engines
Journal Articles

A Dispatch Optimization Model for Hybrid Renewable and Battery Systems Incorporating a Battery Degradation Model

Sahana Upadhya, Michael J. Wagner
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. July 2022, 144(7): 070907.
Paper No: JERT-21-1695
https://doi.org/10.1115/1.4052983
Published Online: December 14, 2021
View Article titled, A Dispatch Optimization Model for Hybrid Renewable and Battery Systems Incorporating a Battery Degradation Model
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Topics: Batteries, Cycles, Optimization
Proceedings Papers

Demonstrating SolarPILOT’s Python API Through Heliostat Optimal Aimpoint Strategy Use Case

William T. Hamilton, Michael J. Wagner, Alexander J. Zolan
Proc. ASME. ES2021, ASME 2021 15th International Conference on Energy Sustainability, V001T02A001, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ES2021-60502
https://doi.org/10.1115/ES2021-60502
View Paper titled, Demonstrating SolarPILOT’s Python API Through Heliostat Optimal Aimpoint Strategy Use Case
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Topics: American Petroleum Institute, Solar energy, Computer software, Concentrating solar power, Engines, Graphical user interfaces, Ray tracing, Reflectance, Renewable energy
Proceedings Papers

A Dispatch Optimization Model for Hybrid Renewable and Battery Systems Incorporating a Battery Degradation Model

Sahana Upadhya, Michael J. Wagner
Proc. ASME. ES2021, ASME 2021 15th International Conference on Energy Sustainability, V001T05A002, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ES2021-63425
https://doi.org/10.1115/ES2021-63425
View Paper titled, A Dispatch Optimization Model for Hybrid Renewable and Battery Systems Incorporating a Battery Degradation Model
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Topics: Batteries, Optimization
Proceedings Papers

A Flexible Thermal Model for Solar Cavity Receivers Using Analytical View Factors

Jacob A. Kerkhoff, Michael J. Wagner
Proc. ASME. ES2021, ASME 2021 15th International Conference on Energy Sustainability, V001T02A014, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ES2021-63810
https://doi.org/10.1115/ES2021-63810
View Paper titled, A Flexible Thermal Model for Solar Cavity Receivers Using Analytical View Factors
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Topics: Cavities, Radiation (Physics), Simulation, Solar energy
Proceedings Papers

Structural Design Considerations for Tubular Power Tower Receivers Operating at 650°C

Ty W. Neises, Michael J. Wagner, Allison K. Gray
Proc. ASME. ES2014, Volume 1: Combined Energy Cycles, CHP, CCHP, and Smart Grids; Concentrating Solar Power, Solar Thermochemistry and Thermal Energy Storage; Geothermal, Ocean, and Emerging Energy Technologies; Hydrogen Energy Technologies; Low/Zero Emission Power Plants and Carbon Sequestration; Photovoltaics; Wind Energy Systems and Technologies, V001T02A045, June 30–July 2, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ES2014-6603
https://doi.org/10.1115/ES2014-6603
View Paper titled, Structural Design Considerations for Tubular Power Tower Receivers Operating at 650°C
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Topics: Boilers, Creep, Cycles, Design, Fluids, Heat transfer, High pressure (Physics), High temperature, Solar energy, Steam
Proceedings Papers

A Direct-Steam Linear Fresnel Performance Model for NREL’S System Advisor Model

Michael J. Wagner, Guangdong Zhu
Proc. ASME. ES2012, ASME 2012 6th International Conference on Energy Sustainability, Parts A and B, 459-468, July 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ES2012-91317
https://doi.org/10.1115/ES2012-91317
View Paper titled, A Direct-Steam Linear Fresnel Performance Model for NREL’S System Advisor Model
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Topics: Steam, Heat losses, Solar energy, Temperature, Enthalpy, Flow (Dynamics), Inertia (Mechanics), Modeling, Operating temperature, Polynomials
Proceedings Papers

Simulation of Direct Steam Power Tower Concentrated Solar Plant

Ty Neises, Michael J. Wagner
Proc. ASME. ES2012, ASME 2012 6th International Conference on Energy Sustainability, Parts A and B, 499-507, July 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ES2012-91364
https://doi.org/10.1115/ES2012-91364
View Paper titled, Simulation of Direct Steam Power Tower Concentrated Solar Plant
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Topics: Simulation, Solar energy, Steam, Thermodynamic power cycles, Temperature, Turbines, Boilers, Boiling, Design, High pressure (Physics)
Journal Articles

Thermodynamic Study of Advanced Supercritical Carbon Dioxide Power Cycles for Concentrating Solar Power Systems

Craig S. Turchi, Zhiwen Ma, Ty W. Neises, Michael J. Wagner
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. November 2013, 135(4): 041007.
Paper No: SOL-12-1230
https://doi.org/10.1115/1.4024030
Published Online: June 25, 2013
View Article titled, Thermodynamic Study of Advanced Supercritical Carbon Dioxide Power Cycles for Concentrating Solar Power Systems
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Topics: Brayton cycle, Cycles, Heat exchangers, Supercritical carbon dioxide, Temperature, Turbines, Compressors, Cooling, Thermodynamic power cycles
Proceedings Papers

Modeling of a Parabolic Trough Solar Field for Acceptance Testing: A Case Study

Michael J. Wagner, Mark S. Mehos, David W. Kearney, Andrew C. McMahan
Proc. ASME. ES2011, ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 595-603, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ES2011-54245
https://doi.org/10.1115/ES2011-54245
View Paper titled, Modeling of a Parabolic Trough Solar Field for Acceptance Testing: A Case Study
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Topics: Modeling, Parabolic troughs, Solar energy, Testing, Collaboration, Computer software, Concentrating solar power, Performance test codes, Renewable energy, Steady state
Proceedings Papers

The Impact of Hybrid Wet/Dry Cooling on Concentrating Solar Power Plant Performance

Michael J. Wagner, Charles Kutscher
Proc. ASME. ES2010, ASME 2010 4th International Conference on Energy Sustainability, Volume 2, 675-682, May 17–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ES2010-90442
https://doi.org/10.1115/ES2010-90442
View Paper titled, The Impact of Hybrid Wet/Dry Cooling on Concentrating Solar Power Plant Performance
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Topics: Concentrating solar power, Cooling, Rankine cycle, Water
Proceedings Papers

Simulation of Utility-Scale Central Receiver System Power Plants

Michael J. Wagner, Sanford A. Klein, Douglas T. Reindl
Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 2, 605-614, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90132
https://doi.org/10.1115/ES2009-90132
View Paper titled, Simulation of Utility-Scale Central Receiver System Power Plants
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Topics: Concentrating solar power, Modeling, Optimization, Power stations, Simulation, Solar energy, Solar power, Stress, Design, Economic analysis