H. Evan Bush

R&D, S&E Systems Engineering

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R&D, S&E Systems Engineering

hebush@sandia.gov

Biography

Dr. H. Evan Bush is an R&D, S&E Mechanical Engineer and Senior Member of the Technical Staff in the Concentrating Solar Technologies group. Evan’s research focuses on solar thermochemical cycles, materials, and reactors for thermal energy storage, H2 generation, and the production of chemical commodities such as ammonia. His research also includes the characterization and control of high-temperature particles for sensible energy transport and storage. Evan has worked on projects relating to CSP systems/technoeconomic modeling; solar reactor engineering and computational modeling; PV solar glint and glare prediction; CSP mirror characterization; and digital imaging and ray tracing to characterize high temperature, high flux systems.

Research Interests

  • Solar thermochemistry
  • High-Flux solar simulators
  • Computational heat and mass transfer modeling
  • Image processing for CSP applications
  • Radiative heat transfer
  • Thermodynamic modeling
  • Energy storage technologies
  • High temperature systems

Education

  • Bachelor of Science, Mechanical Engineering, University of Louisville, May 2014
  • Master of Science, Mechanical Engineering, Georgia Institute of Technology, May 2017
  • Doctor of Philosophy, Mechanical Engineering, Georgia Institute of Technology, May 2019

Publications

Hagan Bush, (2021). Variability Considerations for Modeling of Irradiated Particle Systems https://www.osti.gov/servlets/purl/1902606 Publication ID: 77095

Clifford Ho, Hagan Bush, Daniel Villa, Nicole Rinaldi, Nathan Schroeder, Jeremy Sment, (2021). 100% Carbon-Free Electricity for Sandia NM and KAFB Using Concentrating Solar Power (CSP) (SAND Report) https://doi.org/10.2172/1854742 Publication ID: 76054

Hagan Bush, Nhu Nguyen, Tyler Farr, Peter Loutzenhiser, Andrea Ambrosini, (2021). Air separation via a two-step solar thermochemical cycle based on (Ba,La)xSr1-xFeO3-δ: Thermodynamic analysis Solid State Ionics https://doi.org/10.1016/j.ssi.2021.115692 Publication ID: 79087

Alberto de la Calle, Hagan Bush, Ivan Ermanoski, Andrea Ambrosini, Ellen Stechel, (2021). Solar-Thermal Ammonia Production: System Design and Technoeconomic Analysis [Slides] https://doi.org/10.2172/1890590 Publication ID: 75980

Andrea Ambrosini, Hagan Bush, Xiang Gao, Zachary Berquist, Nathaniel Anbar, Ellen Stechel, James Miller, (2021). Metal nitride materials for solar-thermal ammonia production [Slides] https://doi.org/10.2172/1890870 Publication ID: 75987

Hagan Bush, Zachary Berquist, Matthew Kury, Kevin Albrecht, Andrea Ambrosini, (2021). Design and Operation of Reactors for Solar Thermochemical Air Separation for Ammonia Synthesis https://doi.org/10.2172/1890381 Publication ID: 75957

Nhu Nguyen, T Farr, Hagan Bush, Andrea Ambrosini, Peter Loutzenhiser, (2021). Rate limiting mechanism(s) determination of SrFeO3-δand (Ba,La)0.15Sr0.85FeO3-δ perovskite reduction/oxidation reactions for air separation via two-step solar thermochemical cycles https://doi.org/10.2172/1890878 Publication ID: 75982

Hagan Bush, Matthew Kury, Kevin Albrecht, Andrea Ambrosini, (2021). Design Modeling and Operation of Reactors for Solar Thermochemical Air Separation and Ammonia Production https://doi.org/10.2172/1868433 Publication ID: 78450

Andrea Ambrosini, Kevin Albrecht, Hagan Bush, Alberto de la Calle, Ivan Ermanoski, Tyler Farr, Xiang Gao, Matthew Kury, Peter Loutzenhiser, Nguyen Nhu, Ellen Stechel, (2021). A Renewable, Carbon-Neutral Route to Ammonia via Concentrating Solar Thermochemistry https://doi.org/10.2172/1882496 Publication ID: 78207

Tyler Farr, Nhu Nguyen, Hagan Bush, Andrea Ambrosini, Peter Loutzenhiser, (2020). An a-and b-site substitutional study of srfeo3−δ perovskites for solar thermochemical air separation Materials https://doi.org/10.3390/ma13225123 Publication ID: 71852

Andrea Ambrosini, Kevin Albrecht, Hagan Bush, Alberto de la Calle, Ivan Ermanoski, Tyler Farr, Xiang Gao, Matthew Kury, Peter Loutzenhiser, Nguyen Nhu, Ellen Stechel, (2020). Solar-Thermal Ammonia Production: A Renewable Carbon-Neutral Route to Ammonia https://doi.org/10.2172/1833157 Publication ID: 71830

Nguyen Nhu, Tyler Farr, Hagan Bush, Andrea Ambrosini, Peter Loutzenhiser, (2020). Screening and Characterization of Reduction/Oxidation-Active Reactions of Mixed Ionic-Electronic Conducting Materials for Air Separation https://doi.org/10.2172/1832628 Publication ID: 71853

Hagan Bush, Andrew Schrader, Peter Loutzenhiser, (2020). Pairing Directional Solar Inputs From Ray Tracing to Solar Receiver/Reactor Heat Transfer Models on Unstructured Meshes: Development and Case Studies Journal of Solar Energy Engineering https://doi.org/10.1115/1.4048563 Publication ID: 74263

Hagan Bush, N. Nguyen, Tyler Farr, Ellen Stechel, Peter Loutzenhiser, Andrea Ambrosini, (2020). Substituted SrFeO3-δ Thermodynamics for Solar Air Separation https://www.osti.gov/servlets/purl/1821076 Publication ID: 74855

Alberto de la Calle, Hagan Bush, Ivan Ermanoski, Xiang Gao, Andrea Ambrosini, Ellen Stechel, (2020). Solar-driven nitrogen separation process from air based on two-step thermochemical cycle: thermodynamic analysis https://www.osti.gov/servlets/purl/1821293 Publication ID: 74898

Tyer Farr, Nhu Nguyen, Hagan Bush, Andrea Ambrosini, P. Loutzenhiser, (2020). Experimental Screening of Substituted SrFeO3-δ for Solar Thermochemical Air Separation https://www.osti.gov/servlets/purl/1821294 Publication ID: 74899

Matthew Kury, Kevin Albrecht, Hagan Bush, Andrea Ambrosini, (2020). Concentrating Solar Reduction Reactorfor Oxygen Separation from Air https://www.osti.gov/servlets/purl/1821310 Publication ID: 74911

Hagan Bush, N. Nguyen, Tyler Farr, Ellen Stechel, Peter Loutzenhiser, Andrea Ambrosini, (2020). Modeling Perovskite Oxide Thermodynamics via the Compound Energy Formalism for Solar Thermochemistry https://www.osti.gov/servlets/purl/1787439 Publication ID: 73627

Hagan Bush, Andrew Schrader, Peter Loutzenhiser, (2020). Pairing Directional Solar Inputs from Ray Tracing to Solar Receiver/Reactor Heat Transfer Models on Unstructured Meshes: Development and Case Studies https://doi.org/10.1115/ES2020-1615 Publication ID: 73628

Hagan Bush, (2020). Ammonia Production with Concentrated Sunlight https://www.osti.gov/servlets/purl/1787739 Publication ID: 73664

Hagan Bush, Andrew Schrader, Peter. Loutzenhiser, (2020). Pairing directional solar inputs from ray tracing to solar receiver/reactor heat transfer models on unstructured meshes: Development and case studies https://www.osti.gov/servlets/purl/1763626 Publication ID: 70902

Hagan Bush, N. Nguyen, Tyler Farr, Rishabh Datta, P. Loutzenhiser, Andrea Ambrosini, (2019). Perovskite Oxides for Solar Air Separation https://www.osti.gov/servlets/purl/1761046 Publication ID: 66461

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