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Journal Articles

A Techno-Economic Analysis of Solar-Driven Atmospheric Water Harvesting

Nathan P. Siegel, Ben Conser
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. September 2021, 143(9): 090902.
Paper No: JERT-20-1771
https://doi.org/10.1115/1.4049286
Published Online: January 15, 2021
View Article titled, A Techno-Economic Analysis of Solar-Driven Atmospheric Water Harvesting
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Topics: Solar energy, Temperature, Water, Water harvesting, Latent heat, Heat, Economics , Pressure, Stress
Proceedings Papers

A Techno-Economic Analysis of Solar-Driven Atmospheric Water Harvesting

Nathan P. Siegel, Ben Conser
Proc. ASME. ES2020, ASME 2020 14th International Conference on Energy Sustainability, V001T10A002, June 17–18, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ES2020-1619
https://doi.org/10.1115/ES2020-1619
View Paper titled, A Techno-Economic Analysis of Solar-Driven Atmospheric Water Harvesting
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Topics: Solar energy, Water harvesting
Journal Articles

Design, Modeling, and Characterization of a 10 kW e Metal Halide High Flux Solar Simulator

Nathan P. Siegel, Jeffrey P. Roba
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Design Innovation Paper
J. Sol. Energy Eng. August 2018, 140(4): 045001.
Paper No: SOL-18-1003
https://doi.org/10.1115/1.4039658
Published Online: April 13, 2018
View Article titled, Design, Modeling, and Characterization of a 10 kW e Metal Halide High Flux Solar Simulator
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Topics: Design, Metals, Solar energy, Hardware, Simulation
Journal Articles

The Development of Direct Absorption and Storage Media for Falling Particle Solar Central Receivers

Nathan P. Siegel, Michael D. Gross, Robert Coury
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. August 2015, 137(4): 041003.
Paper No: SOL-14-1347
https://doi.org/10.1115/1.4030069
Published Online: August 1, 2015
View Article titled, The Development of Direct Absorption and Storage Media for Falling Particle Solar Central Receivers
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Topics: Particulate matter, Solar energy, Storage, Heating, Absorption
Journal Articles

A New Reactor Concept for Efficient Solar-Thermochemical Fuel Production

Ivan Ermanoski, Nathan P. Siegel, Ellen B. Stechel
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. August 2013, 135(3): 031002.
Paper No: SOL-12-1073
https://doi.org/10.1115/1.4023356
Published Online: February 8, 2013
View Article titled, A New Reactor Concept for Efficient Solar-Thermochemical Fuel Production
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Topics: Design, Fuels, Heat, Oxygen, Pressure, Solar energy, Vacuum, Water, Cycles, Temperature
Proceedings Papers

Improved High Temperature Solar Absorbers for Use in Concentrating Solar Power Central Receiver Applications

Andrea Ambrosini, Timothy N. Lambert, Marlene Bencomo, Aaron Hall, Kent vanEvery, Nathan P. Siegel, Clifford K. Ho
Proc. ASME. ES2011, ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 587-594, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ES2011-54241
https://doi.org/10.1115/ES2011-54241
View Paper titled, Improved High Temperature Solar Absorbers for Use in Concentrating Solar Power Central Receiver Applications
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Topics: Concentrating solar power, High temperature, Solar energy, Coatings, Operating temperature, Electricity (Physics), Heat, Stability, Sunlight, Thermal energy storage
Proceedings Papers

Design, Fabrication and Testing of an Apparatus for Material Compatibility Testing in Nitrate Salts at Temperatures Up to 700°C

David D. Gill, Nathan P. Siegel, Robert W. Bradshaw, Clifford K. Ho
Proc. ASME. ES2011, ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 605-610, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ES2011-54250
https://doi.org/10.1115/ES2011-54250
View Paper titled, Design, Fabrication and Testing of an Apparatus for Material Compatibility Testing in Nitrate Salts at Temperatures Up to 700°C
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Topics: Design, Manufacturing, Temperature, Testing, Corrosion, Oxygen, High temperature, Vessels, Containment vessels, Gaskets
Proceedings Papers

Thermophysical Property Measurement of Nitrate Salt Heat Transfer Fluids

Nathan P. Siegel, Robert W. Bradshaw, Joseph B. Cordaro, Alan M. Kruizenga
Proc. ASME. ES2011, ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 439-446, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ES2011-54058
https://doi.org/10.1115/ES2011-54058
View Paper titled, Thermophysical Property Measurement of Nitrate Salt Heat Transfer Fluids
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Topics: Fluids, Heat transfer, Parabolic troughs, Temperature, Density, Design, Melting point, Viscosity, Concentrating solar power, Heat capacity
Proceedings Papers

CFD Simulation and Performance Analysis of Alternative Designs for High-Temperature Solid Particle Receivers

Siri Sahib S. Khalsa, Joshua M. Christian, Gregory J. Kolb, Marc Ro¨ger, Lars Amsbeck, Clifford K. Ho, Nathan P. Siegel, Adam C. Moya
Proc. ASME. ES2011, ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 687-693, August 7–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: ES2011-54430
https://doi.org/10.1115/ES2011-54430
View Paper titled, CFD Simulation and Performance Analysis of Alternative Designs for High-Temperature Solid Particle Receivers
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Topics: Computational fluid dynamics, High temperature, Particulate matter, Simulation, Temperature, Thermal efficiency, Absorption, Cavities, Solar radiation, Boundary-value problems
Proceedings Papers

Cerium Oxide Materials for the Solar Thermochemical Decomposition of Carbon Dioxide

Nathan P. Siegel, Stephanie Livers, James E. Miller, Richard B. Diver
Proc. ASME. ES2010, ASME 2010 4th International Conference on Energy Sustainability, Volume 2, 89-95, May 17–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ES2010-90091
https://doi.org/10.1115/ES2010-90091
View Paper titled, Cerium Oxide Materials for the Solar Thermochemical Decomposition of Carbon Dioxide
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Topics: Carbon dioxide, Solar energy, Carbon, Cycles, Ferrites (Magnetic materials), Oxidation, Crystal structure, Furnaces, Operating temperature, Sintering
Proceedings Papers

Analytical Methods to Evaluate Flux Distributions From Point-Focus Collectors for Solar Furnace and Dish Engine Applications

Clifford K. Ho, Siri S. Khalsa, Nathan P. Siegel
Proc. ASME. ES2010, ASME 2010 4th International Conference on Energy Sustainability, Volume 2, 501-509, May 17–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ES2010-90054
https://doi.org/10.1115/ES2010-90054
View Paper titled, Analytical Methods to Evaluate Flux Distributions From Point-Focus Collectors for Solar Furnace and Dish Engine Applications
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Topics: Analytical methods, Engines, Furnaces, Solar energy, Errors, Optics
Proceedings Papers

Testing of a CR5 Solar Thermochemical Heat Engine Prototype

Richard B. Diver, James E. Miller, Nathan P. Siegel, Timothy A. Moss
Proc. ASME. ES2010, ASME 2010 4th International Conference on Energy Sustainability, Volume 2, 97-104, May 17–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ES2010-90093
https://doi.org/10.1115/ES2010-90093
View Paper titled, Testing of a CR5 Solar Thermochemical Heat Engine Prototype
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Topics: Engineering prototypes, Heat engines, Solar energy, Testing, Carbon dioxide, Sunlight, Water, Feedstock, Fuels, Cycles
Proceedings Papers

Molten Nitrate Salt Development for Thermal Energy Storage in Parabolic Trough Solar Power Systems

Robert W. Bradshaw, Joseph G. Cordaro, Nathan P. Siegel
Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 2, 615-624, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90140
https://doi.org/10.1115/ES2009-90140
View Paper titled, Molten Nitrate Salt Development for Thermal Energy Storage in Parabolic Trough Solar Power Systems
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Topics: Parabolic troughs, Solar energy systems, Thermal energy storage, Temperature, Fluids, Viscosity, Lithium, Cathodic protection, Chemical stability, Density
Proceedings Papers

Modeling On-Sun Tests of a Prototype Solid Particle Receiver for Concentrating Solar Power Processes and Storage

Clifford K. Ho, Siri S. Khalsa, Nathan P. Siegel
Proc. ASME. ES2009, ASME 2009 3rd International Conference on Energy Sustainability, Volume 2, 543-550, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ES2009-90035
https://doi.org/10.1115/ES2009-90035
View Paper titled, Modeling On-Sun Tests of a Prototype Solid Particle Receiver for Concentrating Solar Power Processes and Storage
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Topics: Concentrating solar power, Engineering prototypes, Modeling, Particulate matter, Storage, Errors, Temperature, Cavities, Cavity walls, Convection
Journal Articles

Development and Evaluation of a Prototype Solid Particle Receiver: On-Sun Testing and Model Validation

Nathan P. Siegel, Clifford K. Ho, Siri S. Khalsa, Gregory J. Kolb
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. May 2010, 132(2): 021008.
https://doi.org/10.1115/1.4001146
Published Online: May 6, 2010
View Article titled, Development and Evaluation of a Prototype Solid Particle Receiver: On-Sun Testing and Model Validation
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Topics: Cavities, Particulate matter, Solar energy, Temperature, Engineering prototypes, Flow (Dynamics), Testing
Journal Articles

Elucidating Liquid Water Distribution and Removal in an Operating Proton Exchange Membrane Fuel Cell via Neutron Radiography

Michael A. Hickner, Ken S. Chen, Nathan P. Siegel
Journal: Journal of Electrochemical Energy Conversion and Storage
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. February 2010, 7(1): 011001.
https://doi.org/10.1115/1.3115624
Published Online: October 5, 2009
View Article titled, Elucidating Liquid Water Distribution and Removal in an Operating Proton Exchange Membrane Fuel Cell via Neutron Radiography
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Topics: Computational fluid dynamics, Corners (Structural elements), Flow (Dynamics), Gas flow, Neutron radiography, Proton exchange membrane fuel cells, Water, Water distribution
Proceedings Papers

Molten Nitrate Salt Development for Thermal Energy Storage in Parabolic Trough Solar Power Systems

Robert W. Bradshaw, Nathan P. Siegel
Proc. ASME. ES2008, ASME 2008 2nd International Conference on Energy Sustainability, Volume 2, 631-637, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ES2008-54174
https://doi.org/10.1115/ES2008-54174
View Paper titled, Molten Nitrate Salt Development for Thermal Energy Storage in Parabolic Trough Solar Power Systems
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Topics: Parabolic troughs, Solar energy systems, Thermal energy storage, Fluids, Temperature, Heat transfer, Cathodic protection, Chemical stability, Viscosity, Alloys
Proceedings Papers

Materials Development for the CR5 Solar Thermochemical Heat Engine

James E. Miller, Lindsey R. Evans, John N. Stuecker, Mark D. Allendorf, Nathan P. Siegel, Richard B. Diver
Proc. ASME. ISEC2006, Solar Energy, 311-320, July 8–13, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ISEC2006-99152
https://doi.org/10.1115/ISEC2006-99152
View Paper titled, Materials Development for the CR5 Solar Thermochemical Heat Engine
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Topics: Ferrites (Magnetic materials), Heat engines, Hydrogen, Solar energy
Proceedings Papers

Numerical Modeling of Solar Thermo-Chemical Water-Splitting Reactor

Darryl L. James, Nathan P. Siegel, Richard B. Diver, Barry D. Boughton, Roy E. Hogan
Proc. ASME. ISEC2006, Solar Energy, 221-227, July 8–13, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ISEC2006-99141
https://doi.org/10.1115/ISEC2006-99141
View Paper titled, Numerical Modeling of Solar Thermo-Chemical Water-Splitting Reactor
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Topics: Computer simulation, Solar energy, Water, Flow control, Fossil fuels, Heat engines, High temperature, Hydrogen, Hydrogen production, Solar thermal power
Proceedings Papers

Thermodynamic Analysis of Mixed-Metal Ferrites for Hydrogen Production by Two-Step Water Splitting

Mark D. Allendorf, Richard B. Diver, Jr., James E. Miller, Nathan P. Siegel
Proc. ASME. ISEC2006, Solar Energy, 285-290, July 8–13, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ISEC2006-99114
https://doi.org/10.1115/ISEC2006-99114
View Paper titled, Thermodynamic Analysis of Mixed-Metal Ferrites for Hydrogen Production by Two-Step Water Splitting
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Topics: Ferrites (Magnetic materials), Hydrogen, Hydrogen production, Metals, Water