Ethan Hecht

Senior Member of Technical Staff, Combustion Research Facility

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Senior Member of Technical Staff, Combustion Research Facility

ehecht@sandia.gov

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(925) 294-3741

Sandia National Laboratories, California
P.O. Box 969
Livermore, CA 94551-0969

Biography

Ethan S. Hecht is a Senior Member of the Technical Staff at the Combustion Research Facility at Sandia National Laboratories.  He has broad expertise in hydrogen energy systems.  He has led experimental investigations of (high pressure and cryogenic) hydrogen dispersion and flame behavior using laser and conventional diagnostics, helped develop the HyRAM quantitative risk assessment toolkit, contributed to reference station designs of hydrogen fueling stations, and performed experiments on the synthesis and characterization of metal hydrides for solid-state hydrogen storage. Beyond hydrogen, he has also worked on a range of projects at Sandia, including developing the scientific underpinnings for CO2-neutral coal utilization strategies, identifying promising approaches to improving efficiencies of cellulosic bio-refineries, developing methods for the high-efficiency extraction of heavy oil, and investigating advanced electro- and thermo-chemical reactions.

Before joining Sandia in 2005, Ethan was a graduate research assistant at Colorado School of Mines where studied the fuel reforming that occurs in the anode of a solid oxide fuel cell. As participant in the Doctoral Studies Program at Sandia, Ethan earned a PhD from the University of Utah, where he researched oxy-combustion of coal. Google Scholar

Education

PhDUniversity of UtahSalt Lake City
Colorado School of MinesGolden, Colorado

Publications

Brian Ehrhart, Ethan Hecht, (2022). Hydrogen Plus Other Alternative Fuels Risk Assessment Models (HyRAM+) Version 5.0 Technical Reference Manual https://doi.org/10.2172/1900089 Publication ID: 80442

Christopher Shaddix, Ethan Hecht, Brian Haynes, (2022). Quantifying the effect of CO2 gasification on pulverized coal char oxy-fuel combustion Proceedings of the Combustion Institute https://doi.org/10.1016/j.proci.2022.07.122 Publication ID: 80107

Austin Baird, Ethan Hecht, Brian Ehrhart, Alice Muna, (2022). Liquid Hydrogen Heavy-Duty Vehicle Safety Review and Refueling Facility Design https://doi.org/10.2172/1885100 Publication ID: 80124

Brian Ehrhart, Ethan Hecht, (2022). Hydrogen Plus Other Alternative Fuels Risk Assessment Models (HyRAM+) Version 4.1 Technical Reference Manual https://doi.org/10.2172/1865723 Publication ID: 80703

Ethan Hecht, Brian Ehrhart, (2021). Hydrogen Plus Other Alternative Fuels Risk Assessment Models (HyRAM+) (Technical Reference Manual V.4) https://doi.org/10.2172/1832082 Publication ID: 76867

Austin Glover, Brian Ehrhart, Alice Muna, Ethan Hecht, Laurence Bernard, Deborah Houssin, Simon Jallais, Elena Vyazmina, (2021). Benchmark Comparison of HyRAM and ALDEA Software for Hydrogen Release Behavior https://doi.org/10.2172/1880411 Publication ID: 76488

Gabriela Bran Anleu, Ethan Hecht, Derek Machalek, (2021). Influence of Non-Equilibrium Conditions on Liquid Hydrogen Storage Tank Behavior [Slides] https://doi.org/10.2172/1887049 Publication ID: 75614

Benjamin Schroeder, Brian Ehrhart, Chris LaFleur, Ethan Hecht, Austin Glover, Austin Baird, Jamal Mohmand, Myra Blaylock, Gabriela Bran Anleu, Leonard Klebanoff, Cheri Markt, (2021). Insights from Sandia?s Hydrogen Projects https://www.osti.gov/servlets/purl/1886166 Publication ID: 75531

Benjamin Schroeder, Brian Ehrhart, Chris LaFleur, Ethan Hecht, Austin Glover, Austin Baird, Jamal Mohmand, Cheri Markt, Leonard Klebanoff, Myra Blaylock, Dusty Brooks, Gabriela Bran Anleu, Joseph Ronevich, (2021). Safety Issues in Handling and Use of Hydrogen as a Fuel https://www.osti.gov/servlets/purl/1886193 Publication ID: 75548

Ethan Hecht, Brian Ehrhart, (2021). Analysis to support revised distance between bulk liquid hydrogen systems and exposures https://doi.org/10.2172/1887724 Publication ID: 75709

Ethan Hecht, (2021). Overview of NFPA 2 public comment 49/NFPA 55 public comment 16 https://www.osti.gov/servlets/purl/1889076 Publication ID: 75762

Ethan Hecht, Nick Killingsworth, (2021). Effect of wind on cryogenic hydrogen dispersion from vent stacks https://doi.org/10.2172/1888420 Publication ID: 75764

Ethan Hecht, Gabriela Bran Anleu, Derek Machaleka, (2021). INFLUENCE OF NON-EQUILIBRIUM CONDITIONS ON LIQUID HYDROGEN STORAGE TANK BEHAVIOR https://www.osti.gov/servlets/purl/1884144 Publication ID: 79126

Ethan Hecht, Brian Ehrhart, (2021). Analysis to support revised distances between bulk liquid hydrogen systems and exposures https://www.osti.gov/servlets/purl/1875028 Publication ID: 79067

Ethan Hecht, Nick Killingsworth, (2021). Effect of wind on cryogenic hydrogen dispersion from vent stacks https://www.osti.gov/servlets/purl/1875029 Publication ID: 79068

Ethan Hecht, (2021). Lab-scale dispersion of cryogenic hydrogen jets https://doi.org/10.2172/1867138 Publication ID: 78370

Brian Ehrhart, Ethan Hecht, Jamal Mohmand, Chris LaFleur, (2021). Update on Recent Efforts for the HyRAM Toolkit https://www.osti.gov/servlets/purl/1868175 Publication ID: 78437

Brian Ehrhart, Ethan Hecht, Jamal Mohmand, (2021). Validation and Comparison of HyRAM Physics Models https://doi.org/10.2172/1813659 Publication ID: 78453

Brian Ehrhart, Ethan Hecht, (2021). Hydrogen Risk Assessment Models (HyRAM) (V.3.1) (Technical Reference Manual) https://doi.org/10.2172/1784842 Publication ID: 78454

Ethan Hecht, Brian Ehrhart, (2021). Updated Justification for LH2 Exposure Distance Proposal https://www.osti.gov/servlets/purl/1869534 Publication ID: 78545

Ethan Hecht, (2021). R&D for Safety Codes and Standards: Hydrogen Behavior https://doi.org/10.2172/1863509 Publication ID: 78081

Ethan Hecht, (2021). Scientific justification for updating the bulk liquid separation distance tables in NFPA 2 https://www.osti.gov/servlets/purl/1863186 Publication ID: 78019

Brian Ehrhart, Chris LaFleur, Ethan Hecht, Austin Glover, Austin Baird, Jamal Mohmand, Cianan Sims, Myra Blaylock, (2021). Hydrogen Quantitative Risk Assessment https://www.osti.gov/servlets/purl/1863518 Publication ID: 78074

Xuefang Li, Bikram Chowdhury, Qian He, David Christopher, Ethan Hecht, (2021). Validation of two-layer model for underexpanded hydrogen jets International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2020.08.204 Publication ID: 74768

Bikram Chowdhury, Ethan Hecht, (2021). Dispersion of cryogenic hydrogen through high-aspect ratio nozzles International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2020.09.072 Publication ID: 74811

Ethan Hecht, Bikram Chowdhury, (2021). Characteristic of cryogenic hydrogen flames from high-aspect ratio nozzles International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2020.08.265 Publication ID: 74732

Myra Blaylock, Ethan Hecht, Jessica Shum, (2021). Validation of the HyRAM+ physics models for use with propane https://doi.org/10.2172/1821534 Publication ID: 77698

Ethan Hecht, (2021). Experiments and Analysis in Support of Science-Based Liquid Hydrogen Codes and Standards https://www.osti.gov/servlets/purl/1854672 Publication ID: 75053

Ethan Hecht, (2020). Developing a scientific basis for liquid hydrogen safety codes and standards in the United States https://doi.org/10.2172/1889058 Publication ID: 71801

Ethan Hecht, Thomas Jordan, (2020). Session: Progress in Safety Research Topic: Low T (LH2/cryogenic) related https://www.osti.gov/servlets/purl/1829248 Publication ID: 71518

Ethan Hecht, (2020). Hydrogen detection via Raman scattering https://www.osti.gov/servlets/purl/1826452 Publication ID: 71285

Markus Bösenhofer, Ethan Hecht, Christopher Shaddix, Bernhard König, Johannes Rieger, Michael Harasek, (2020). Computational fluid dynamics analysis of char conversion in Sandia’s pressurized entrained flow reactor Review of Scientific Instruments https://doi.org/10.1063/5.0005733 Publication ID: 74102

Ethan Hecht, Brian Ehrhart, (2020). HyRAM simulations of LH2 hazard distances https://www.osti.gov/servlets/purl/1807437 Publication ID: 73794

Nalini Menon, April Nissen, Jeff Campbell, Fitzjames Ryan, Chris Reed, Ethan Hecht, (2020). Dispenser Reliability: Materials R&D https://www.osti.gov/servlets/purl/1787735 Publication ID: 73658

Brian Ehrhart, Chris LaFleur, Ethan Hecht, Dusty Brooks, Alice Muna, Myra Blaylock, Gabriela Bran Anleu, Cianan Sims, (2020). Hydrogen Quantitative Risk Assessment https://www.osti.gov/servlets/purl/1779040 Publication ID: 73306

Ethan Hecht, Bikram Chowdhury, (2020). R&D for Safety Codes and Standards:Hydrogen Behavior https://www.osti.gov/servlets/purl/1779043 Publication ID: 73309

Ethan Hecht, Brian Ehrhart, Chris LaFleur, Alice Muna, Elena Vyazmina, Simon Jallais, Laurence Bernard, Deborah Houssin, (2020). Development Validation and Benchmarking of Quantitative Risk Assessment Tools for Hydrogen Refueling Stations https://www.osti.gov/servlets/purl/1780961 Publication ID: 73360

Chris LaFleur, Ethan Hecht, Bikram Roy Chowdhury, (2020). LIquiefied Hydrogen Research Update https://www.osti.gov/servlets/purl/1770278 Publication ID: 72969

Ethan Hecht, (2020). Sandia efforts to measure cryogenic hydrogen dispersion and enable separation distance reduction https://www.osti.gov/servlets/purl/1769582 Publication ID: 72940

Myra Blaylock, Ethan Hecht, Cyrus Jordan, (2020). Validation of Natural Gas Models Used in AltRAM https://www.osti.gov/servlets/purl/1764667 Publication ID: 72402

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, (2020). Hydrogen Refueling Reference Station Lot Size Analysis for Urban Sites https://www.osti.gov/servlets/purl/1761025 Publication ID: 70693

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, (2020). Hydrogen Refueling Reference Station Lot Size Analysis for Urban Sites https://www.osti.gov/servlets/purl/1762823 Publication ID: 70841

Brian Ehrhart, Ethan Hecht, Alice Muna, Chris LaFleur, (2020). Hydrogen Risk Assessment Models 2.0: Open-source quantitative risk assessment framework https://www.osti.gov/servlets/purl/1763613 Publication ID: 70907

Ethan Hecht, (2019). Capabilities in the Turbulent Combustion Lab https://www.osti.gov/servlets/purl/1646301 Publication ID: 66383

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, Alice Muna, Chris LaFleur, (2019). Hydrogen Stations for Urban Sites https://doi.org/10.2172/1570553 Publication ID: 65572

Brian Ehrhart, Chris LaFleur, Ethan Hecht, Myra Blaylock, (2019). Overview and Recent Developments for the Hydrogen Risk Assessment Models (HyRAM) Toolkit https://www.osti.gov/servlets/purl/1642829 Publication ID: 65652

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, (2019). Comparisons of Design Changes on Footprint of Hydrogen Refueling Stations for Urban Sites https://www.osti.gov/servlets/purl/1643003 Publication ID: 65934

Brian Ehrhart, Leonard Klebanoff, Ethan Hecht, Alexander Headley, Melissa Ng, Cheri Markt, (2019). Impact of Hydrogen for Rail Applications https://www.osti.gov/servlets/purl/1643004 Publication ID: 65935

Ethan Hecht, Bikram Roy Chowdhury, (2019). Liquid hydrogen vent stack dispersion measurements using laser diagnostics https://www.osti.gov/servlets/purl/1643010 Publication ID: 65947

Brian Ehrhart, Chris LaFleur, Ethan Hecht, Myra Blaylock, (2019). Recent Developments for the Hydrogen Risk Assessment Models (HyRAM) Toolkit https://www.osti.gov/servlets/purl/1645982 Publication ID: 65285

Ethan Hecht, Bikram Roy Chowdhury, (2019). Characteristic of cryogenic hydrogen flames from high-aspect ratio nozzles https://www.osti.gov/servlets/purl/1641943 Publication ID: 64800

Bikram Roy Chowdhury, Ethan Hecht, (2019). Dispersion of cryogenic hydrogen through high-aspect ratio nozzles https://www.osti.gov/servlets/purl/1641944 Publication ID: 64801

Cyrus Jordan, Myra Blaylock, Ethan Hecht, (2019). Model Validation of Natural Gas Jet and Flames https://www.osti.gov/servlets/purl/1807104 Publication ID: 69888

Ethan Hecht, Bikram Roy Chowdhury, (2019). Characteristic of cryogenic hydrogen flames from high-aspect ratio nozzles https://www.osti.gov/servlets/purl/1641124 Publication ID: 69679

Bikram Roy Chowdhury, Ethan Hecht, (2019). Dispersion of cryogenic hydrogen through high-aspect ratio nozzles https://www.osti.gov/servlets/purl/1641138 Publication ID: 69685

Ethan Hecht, Bikram Roy Chowdhury, (2019). Hydrogen behavior research as a foundation for codes & standards https://www.osti.gov/servlets/purl/1645435 Publication ID: 69248

Ethan Hecht, (2019). Cryogenic hydrogen behavior https://www.osti.gov/servlets/purl/1645207 Publication ID: 68405

Ethan Hecht, Bikram Roy Chowdhury, (2019). Codes & Standards Tech Team Update: Cryogenic Hydrogen Behavior https://www.osti.gov/servlets/purl/1645232 Publication ID: 68501

Nalini Menon, Ethan Hecht, Tiffany Longfield, April Nissen, Jeff Campbell, Michael Peters, (2019). Dispenser Reliability R&D: Materials compatibility https://www.osti.gov/servlets/purl/1639681 Publication ID: 67927

Ethan Hecht, Bikram Roy Chowdhury, (2019). R&D for Safety Codes and Standards: Hydrogen Behavior https://www.osti.gov/servlets/purl/1639292 Publication ID: 67332

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, Alice Muna, Ethan Sena, Chris LaFleur, Carl Rivkin, (2019). Hydrogen Stations for Urban Sites https://www.osti.gov/servlets/purl/1644467 Publication ID: 67335

Brian Ehrhart, Leonard Klebanoff, Ethan Hecht, Alexander Headley, Melissa Ng, Cheri Markt, (2019). Impact of Hydrogen for Rail Applications https://www.osti.gov/servlets/purl/1639495 Publication ID: 67647

Xuefang Li, Qi Chen, Mingjia Chen, Qian He, David Christopher, Xu Cheng, Bikram Roy Chowdhury, Ethan Hecht, (2019). Modeling of underexpanded hydrogen jets through square and rectangular slot nozzles International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2019.01.079 Publication ID: 59739

Brian Ehrhart, Gabriela Bran Anleu, Dongmei Ye, Ethan Hecht, Alice Muna, Ethan Sena, Chris LaFleur, Carl Rivkin, (2019). Reference Design of Hydrogen Stations for Urban Sites https://www.osti.gov/servlets/purl/1644514 Publication ID: 67468

Bikram Roy Chowdhury, Ethan Hecht, (2019). FLAME CHARACTERISTICS OF CRYOGENIC HYDROGEN RELEASES FROM HIGH-ASPECT RATIO NOZZLES https://www.osti.gov/servlets/purl/1639558 Publication ID: 67736

Ethan Hecht, (2019). Cryogenic hydrogen flow measurements https://www.osti.gov/servlets/purl/1639278 Publication ID: 67302

Bikram Roy Chowdhury, Ethan Hecht, (2019). IGNITION AND FLAME CHARACTERISTICS OF CRYOGENIC HYDROGEN RELEASES FROM HIGH-ASPECT RATIO NOZZLES https://www.osti.gov/servlets/purl/1639250 Publication ID: 67248

Ethan Hecht, (2019). Quantitative risk assessment of LH2 systems: data and model needs https://www.osti.gov/servlets/purl/1639254 Publication ID: 67265

Alice Muna, Chris LaFleur, Ethan Hecht, Brian Ehrhart, Bikram Chowdhury, Anthony McDaniel, Scott Bisson, (2019). Development Validation and Benchmarking of Quantitative Risk Assessment Tools for Hydrogen Refueling Stations https://www.osti.gov/servlets/purl/1876741 Publication ID: 67273

Brian Ehrhart, Gabriela Bran Anleu, Ethan Hecht, Chris LaFleur, Alice Muna, Ethan Sena, Carl Rivkin, Joe Pratt, (2019). Update to DOE Staff on Hydrogen Reference Stations for Urban Sites https://www.osti.gov/servlets/purl/1583021 Publication ID: 64193

Scott Egbert, Xuefang Li, Myra Blaylock, Ethan Hecht, (2018). Mixing of Liquid Methane Releases https://doi.org/10.2172/1488323 Publication ID: 60469

Ethan Hecht, (2018). The science behind liquid hydrogen fueling station footprint reduction https://www.osti.gov/servlets/purl/1575155 Publication ID: 60267

Chris LaFleur, Ethan Hecht, Joseph Ronevich, Alice Muna, (2018). Sandia National Lobs Safety Codes & Standards Capabilities https://www.osti.gov/servlets/purl/1882498 Publication ID: 60131

Ethan Hecht, Bikram Roy Chowdhury, (2018). Scientific analyses to support liquid hydrogen footprint reduction https://www.osti.gov/servlets/purl/1593007 Publication ID: 59800

Alice Muna, Brian Ehrhart, Ethan Hecht, Gabriela Bran Anleu, Myra Blaylock, Chris LaFleur, (2018). Hydrogen Quantitative Risk Assessment https://doi.org/10.2172/1481561 Publication ID: 59809

Brian Ehrhart, Gabriela Bran Anleu, Ethan Hecht, (2018). H2FIRST Reference Stations for Urban Sites Overview Slide https://www.osti.gov/servlets/purl/1592240 Publication ID: 58969

Brian Ehrhart, Gabriela Bran Anleu, Ethan Hecht, Alice Muna, Ethan Sena, Carl Rivkin, (2018). Reference Stations for Urban Sites Workshop https://www.osti.gov/servlets/purl/1561439 Publication ID: 64110

Ethan Hecht, Brian Ehrhart, Gabriela Bran Anleu, (2018). Summary of liquid H2 research at Sandia National Laboratories https://www.osti.gov/servlets/purl/1806844 Publication ID: 59127

Ethan Hecht, (2018). Cryogenic hydrogen behavior and research priorities https://www.osti.gov/servlets/purl/1592062 Publication ID: 58874

Brian Ehrhart, Gabriela Bran Anleu, Ethan Hecht, Chris LaFleur, Alice Muna, Ethan Sena, (2018). Codes and Standards Tech Team: Hydrogen Stations for Urban Sites https://www.osti.gov/servlets/purl/1576169 Publication ID: 63548

Christopher Shaddix, Ethan Hecht, Cristina Gonzalo-Tirado, Brian Haynes, (2018). The Effect of Bulk Gas Diffusivity on Apparent Pulverized Coal Char Combustion Kinetics https://doi.org/10.1016/j.proci.2018.07.060 Publication ID: 63986

Alice Muna, Ethan Hecht, Brian Ehrhart, Chris LaFleur, Bikram Roy Chowdhury, Anthony McDaniel, Scott Bisson, (2018). Development Validation and Benchmarking of Quantitative Risk Assessment Tools for Hydrogen Refueling Stations https://www.osti.gov/servlets/purl/1806617 Publication ID: 63236

Bikram Roy Chowdhury, Ethan Hecht, (2018). Simultaneous Measurement of Concentration and Velocity of High-pressure Hydrogen Releases https://www.osti.gov/servlets/purl/1569196 Publication ID: 63011

Christopher Shaddix, Ethan Hecht, Cristina Gonzalo-Tirado, Brian Haynes, (2018). The Effect of Bulk Gas Diffusivity on Apparent Pulverized Coal Char Combustion Kinetics https://doi.org/10.1016/j.proci.2018.07.060 Publication ID: 63379

Gabriela Bran Anleu, Brian Ehrhart, Ethan Hecht, Chris LaFleur, Alice Muna, Carl Rivkin, Joe Pratt, (2018). Hydrogen Stations for Urban Sites https://www.osti.gov/servlets/purl/1526134 Publication ID: 62519

Ethan Hecht, (2018). Safety Codes and Standards and the HyRAM toolkit https://www.osti.gov/servlets/purl/1524839 Publication ID: 62366

Ethan Hecht, (2018). Hydrogen behavior R&D for Safety Codes and Standards at Sandia National Labs https://www.osti.gov/servlets/purl/1507477 Publication ID: 61461

Ethan Hecht, Bikram Roy Chowdhury, Scott Bisson, Anthony McDaniel, (2018). How to see and quantify hydrogen concentration (and cryogenic hydrogen) using optical diagnostics https://www.osti.gov/servlets/purl/1508900 Publication ID: 61631

Ethan Hecht, Bikram Roy Chowdhury, Anthony McDaniel, Scott Bisson, (2018). R&D for Safety Codes and Standards: Hydrogen Behavior https://www.osti.gov/servlets/purl/1508901 Publication ID: 61632

Chris LaFleur, Alice Muna, Ethan Hecht, Brian Ehrhart, Anthony McDaniel, Scott Bisson, Bikram Roy Chowdhury, (2018). Development, Validation, and Benchmarking of Quantitative Risk Assessment Tools for Hydrogen Refueling Stations https://www.osti.gov/servlets/purl/1877564 Publication ID: 61668

Brian Ehrhart, Gabriela Bran Anleu, Ethan Hecht, Chris LaFleur, Alice Muna, Ethan Sena, Carl Rivkin, Joseph Pratt, (2018). Hydrogen Stations for Urban Sites https://www.osti.gov/servlets/purl/1508694 Publication ID: 61670

Ethan Hecht, Bikram Roy Chowdhury, (2018). Experimental validation of a model for cryogenic hydrogen jet dispersion https://www.osti.gov/servlets/purl/1503433 Publication ID: 61217

Christopher Shaddix, Ethan Hecht, Cristina Gonzalo-Tirado, (2018). The Effect of Oxygen Penetration on Apparent Pulverized Coal Char Combustion Kinetics https://www.osti.gov/servlets/purl/1505289 Publication ID: 61393

Christopher Shaddix, Ethan Hecht, Cristina Gonzalo-Tirado, (2018). The effect of oxygen penetration on apparent pulverized coal char combustion kinetics 2018 Spring Technical Meeting of the Western States Section of the Combustion Institute, WSSCI 2018 https://www.osti.gov/servlets/purl/1504313 Publication ID: 61290

Ethan Hecht, (2017). Hazard and consequence modeling applicable to safety codes and standards https://www.osti.gov/servlets/purl/1481498 Publication ID: 54032

Ethan Hecht, (2017). Current research and future outlook for behavior and consequence modeling https://www.osti.gov/servlets/purl/1481499 Publication ID: 54033

Ethan Hecht, (2017). October 2017 Codes & Standards Tech Team Update: Building Knowledge of Cryogenic Hydrogen Behavior https://www.osti.gov/servlets/purl/1478151 Publication ID: 53554

Ethan Hecht, Pratikash Panda, (2017). Mixing and warming of cryogenic hydrogen releases https://doi.org/10.1016/j.ijhydene.2018.07.058 Publication ID: 58428

Ethan Hecht, Pratikash Panda, (2017). Mixing and Warming of Cryogenic Hydrogen Releases https://doi.org/10.1016/j.ijhydene.2018.07.058 Publication ID: 57443

Ethan Hecht, (2017). R&D for Safety Codes and Standards: Hydrogen Behavior https://www.osti.gov/servlets/purl/1457938 Publication ID: 56197

Ethan Hecht, Joseph Pratt, (2017). Reference Station Design Phase II: Comparison of conventional vs. modular hydrogen refuling stations and on-site production vs. delivery https://www.osti.gov/servlets/purl/1457953 Publication ID: 56251

Myra Blaylock, Radoslav Bozinoski, Brian Ehrhart, Ethan Hecht, Chris LaFleur, Alice Muna, (2017). Gaseous Fuel Facility Analysis (Natural Gas and Propane Vehicles) https://www.osti.gov/servlets/purl/1456464 Publication ID: 55699

Katrina Groth, Ethan Hecht, (2017). HyRAM: A methodology and toolkit for quantitative risk assessment of hydrogen systems International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2016.07.002 Publication ID: 44461

Ethan Hecht, Pratikash Panda, (2017). Mixing and Warming of Cryogenic Hydrogen Releases https://www.osti.gov/servlets/purl/1456386 Publication ID: 55587

Ethan Hecht, Joseph Pratt, (2017). Comparison of conventional vs. modular hydrogen refueling stations and on-site production vs. delivery https://doi.org/10.2172/1347655 Publication ID: 55382

Ethan Hecht, Joseph Pratt, (2017). Comparison of conventional vs. modular hydrogen refueling stations, and on-site production vs. delivery https://doi.org/10.2172/1481211 Publication ID: 55397

Ethan Hecht, (2017). Validation data for models of cryogenic hydrogen releases and flames https://www.osti.gov/servlets/purl/1425319 Publication ID: 55171

Katrina Groth, Ethan Hecht, John Reynolds, Myra Blaylock, Erin Carrier, (2017). Methodology for assessing the safety of Hydrogen Systems: HyRAM 1.1 technical reference manual https://doi.org/10.2172/1365456 Publication ID: 55460

Ethan Hecht, Myra Blaylock, (2017). Research on fundamental hydrogen physics with application to safety codes and standards https://www.osti.gov/servlets/purl/1458316 Publication ID: 54897

Pratikash Panda, Ethan Hecht, (2017). Ignition and flame characteristics of cryogenic hydrogen releases International Journal of Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2016.08.051 Publication ID: 50807

Oscar Díaz-Ibarra, Jennifer Spinti, Philip Smith, Christopher Shaddix, Ethan Hecht, (2017). Validation and uncertainty quantification analysis (VUQ) of a char oxidation model 10th U.S. National Combustion Meeting https://www.osti.gov/servlets/purl/1456685 Publication ID: 56031

Ethan Hecht, Pratikash Panda, (2016). Validation data for cryogenic hydrogen releases and flames https://www.osti.gov/servlets/purl/1415722 Publication ID: 47770

Ethan Hecht, Pratikash Panda, (2016). Validation data for cryogenic hydrogen releases and flames https://www.osti.gov/servlets/purl/1400063 Publication ID: 47156

Ethan Hecht, (2016). Non-premixed Hydrogen Combustion https://www.osti.gov/servlets/purl/1395747 Publication ID: 52471

Ethan Hecht, (2016). Accidental Hydrogen Ignition https://www.osti.gov/servlets/purl/1395748 Publication ID: 52472

Ethan Hecht, (2016). Cryogenic Hydrogen Plume Behavior https://www.osti.gov/servlets/purl/1395794 Publication ID: 52473

Ethan Hecht, Pratikash Panda, (2016). Liquid Hydrogen Behavior Studies June 27 2016 https://www.osti.gov/servlets/purl/1368466 Publication ID: 50808

Ethan Hecht, Pratikash Panda, (2016). Liquid Hydrogen Behavior Studies https://www.osti.gov/servlets/purl/1365042 Publication ID: 49325

Ethan Hecht, Pratikash Panda, (2016). R&D for Safety Codes and Standards: Hydrogen Behavior https://www.osti.gov/servlets/purl/1365283 Publication ID: 49627

Ethan Hecht, Pratikash Panda, (2016). State of the Cryogenic Hydrogen Release Lab https://www.osti.gov/servlets/purl/1347650 Publication ID: 48913

Jay Keller, Laura Hill, Kristian Kiuru, Katrina Groth, Ethan Hecht, Will James, (2016). HySafe research priorities workshop report Summary of the workshop organized in cooperation with US DOE and supported by EC JRC in Washington DC November 10-11 2014 https://doi.org/10.2172/1561166 Publication ID: 49041

Ethan Hecht, Pratikash Panda, (2016). Turbulent Combustion Laboratory Overview https://www.osti.gov/servlets/purl/1342477 Publication ID: 46853

Ethan Hecht, Pratikash Panda, (2015). Validation data for releases from cryogenic hydrogen sources https://www.osti.gov/servlets/purl/1331865 Publication ID: 46502

Katrina Groth, Ethan Hecht, John Reynolds, (2015). Methodology for assessing the safety of Hydrogen Systems: HyRAM 1.0 technical reference manual https://doi.org/10.2172/1814840 Publication ID: 41690

Xuefang Li, Ethan Hecht, Isaac Ekoto, (2015). Validated equivalent source model for an underexpanded hydrogen jet https://www.osti.gov/servlets/purl/1332893 Publication ID: 46136

Katrina Groth, Ethan Hecht, (2015). HyRAM: A methodology and toolkit for QRA of hydrogen systems https://www.osti.gov/servlets/purl/1334067 Publication ID: 46064

Ethan Hecht, Mark Zimmerman, Chris LaFleur, Michael Ciotti, (2015). Design of the cryogenic hydrogen release laboratory https://doi.org/10.2172/1214305 Publication ID: 45387

Wyatt Adams, Ethan Hecht, (2015). Rayleigh Scattering Combustion Diagnostic https://www.osti.gov/servlets/purl/1339590 Publication ID: 44620

Chris LaFleur, Ethan Hecht, Isaac Ekoto, (2015). Cryogenic Hydrogen Release Modeling Validation ? Update for Hydrogen Safety Panel https://www.osti.gov/servlets/purl/1248648 Publication ID: 42908

Ethan Hecht, Xuefang Li, Isaac Ekoto, (2015). Validated equivalent source model for an underexpanded hydrogen jet https://www.osti.gov/servlets/purl/1249300 Publication ID: 43171

Ethan Hecht, Christopher Shaddix, (2015). Coal Combustion and Gasification Science https://www.osti.gov/servlets/purl/1251359 Publication ID: 43259

Ethan Hecht, (2015). Coal Combustion and Gasification Science https://www.osti.gov/servlets/purl/1246269 Publication ID: 42468

Ethan Hecht, Chris LaFleur, Isaac Ekoto, (2015). Cryogenic Hydrogen Release Modeling Validation – Update for Hydrogen Safety Panel https://www.osti.gov/servlets/purl/1240258 Publication ID: 42267

Ethan Hecht, isaac ekoto, Adam Ruggles, (2014). State of the art for gaseous release models https://www.osti.gov/servlets/purl/1505043 Publication ID: 39519

Ethan Hecht, isaac ekoto, (2014). Vision for validating the liquid hydrogen plume model at temperatures less than 80K https://www.osti.gov/servlets/purl/1505044 Publication ID: 39520

Ethan Hecht, Christopher Shaddix, (2014). Understanding the complexities of enhanced oxygen high temperature pulverized coal char combustion https://www.osti.gov/servlets/purl/1503122 Publication ID: 38929

Ethan Hecht, Christopher Shaddix, (2014). Understanding the complexities of enhanced oxygen high temperature pulverized coal char combustion https://www.osti.gov/servlets/purl/1503123 Publication ID: 38930

Ethan Hecht, Christopher Shaddix, Manfred Geier, (2014). Experimental Determination of the Kinetics of Pressurized Oxy-Fuel Char Combustion https://www.osti.gov/servlets/purl/1315125 Publication ID: 38983

Isaac Ekoto, Ethan Hecht, Christopher San Marchi, Katrina Groth, Chris LaFleur, Nitin Natesan, Michael Ciotti, Aaron Harris, (2014). Liquid Hydrogen Release Risk and Behavior Modeling: State-of-the-Art Knowledge Gaps and Research Needs for Refueling Infrastructure Safety https://doi.org/10.2172/1160297 Publication ID: 39080

Ethan Hecht, Christopher Shaddix, Manfred Geier, (2014). EXPERIMENTAL DETERMINATION OF THE KINETICS OF PRESSURIZED OXY-FUEL CHAR COMBUSTION https://www.osti.gov/servlets/purl/1315126 Publication ID: 38358

Samira Iqbal, Ethan Hecht, (2014). Temperature Trends in Coal Char Combustion under Oxy-fuel Conditions for the Determination of Kinetics https://doi.org/10.2172/1171556 Publication ID: 38186

Ethan Hecht, Manfred Geier, Samira Iqbal, Christopher Shaddix, (2014). Experimental Determination of the Kinetics of Pressurized Oxy-fuel Char Combustion https://www.osti.gov/servlets/purl/1497607 Publication ID: 38043

Ethan Hecht, Isaac Ekoto, Christopher San Marchi, (2014). Modeling Plumes from Cryogenic Hydrogen Sources https://www.osti.gov/servlets/purl/1494243 Publication ID: 37760

Wayne Staats, Ethan Hecht, Nathan Spencer, Kent Smith, Justin Vanness, Ryan Gorman, Jeffrey Koplow, Terry Johnson, Dita Curgus, Michael Leick, Ned Matthew, Mark Zimmerman, Marco Arienti, Patricia Gharagozloo, (2014). The Sandia Cooler: A fundamentally new approach to air cooled heat exchangers https://www.osti.gov/servlets/purl/1706540 Publication ID: 40560

Ethan Hecht, (2014). SNL Behavior Modeling — Research path & planned LH2 Experiments https://www.osti.gov/servlets/purl/1140832 Publication ID: 40091

Ethan Hecht, Vitalie Stavila, Leonard Klebanoff, (2014). An Investigation into the Hydrogen Storage Characteristics of Ca(BH4)2:LiNH2 and Ca(BH4)2:NaNH2: Evidence of Intramolecular Destabilization The Journal of Physical Chemistry https://www.osti.gov/biblio/1141574 Publication ID: 40168

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2014). The Multifaceted Influence of CO2 on Oxy-fuel Combustion of Pulverized Coal https://www.osti.gov/servlets/purl/1684771 Publication ID: 36970

Terry Johnson, Ethan Hecht, Nathan Spencer, Justin Vanness, Ryan Gorman, Jeffrey Koplow, Wayne Staats, Dita Curgus, Michael Leick, Ned Matthew, Mark Zimmerman, Marco Arienti, Patricia Gharagozloo, (2013). Development of the Sandia Cooler https://doi.org/10.2172/1121984 Publication ID: 31992

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2013). The Influence of CO2 on Oxy-fuel Combustion of Pulverized Coal https://www.osti.gov/servlets/purl/1107686 Publication ID: 35291

Wayne Staats, Ned Matthew, Ethan Hecht, Terry Johnson, Jeffrey Koplow, (2013). Heat Transfer and Pressure Drop Performance of the Air Bearing Heat Exchanger https://www.osti.gov/servlets/purl/1111765 Publication ID: 34343

Christopher Shaddix, Ethan Hecht, (2013). Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR Energy&Fuels https://www.osti.gov/biblio/1078848 Publication ID: 33143

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2013). The influence of CO2 on oxy-fuel combustion of pulverized coal https://www.osti.gov/servlets/purl/1078916 Publication ID: 33144

Ethan Hecht, (2013). Review on the effects of hydrogen at extreme pressures and temperatures on the mechanical behavior of polymers https://doi.org/10.2172/1095947 Publication ID: 32740

Ethan Hecht, Christopher Shaddix, (2012). Analysis of the errors associated with typical pulverized coal char combustion modeling assumptions for oxy-fuel combustion Proposed for publication in Combustion and Flame. https://www.osti.gov/biblio/1063456 Publication ID: 26264

Christopher Shaddix, Ethan Hecht, (2012). Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR https://www.osti.gov/biblio/1062901 Publication ID: 25795

Ethan Hecht, Christopher Shaddix, (2011). Experimental investigations of pulverized coal char reactions with oxygen carbon dioxide and steam https://www.osti.gov/servlets/purl/1106862 Publication ID: 24437

Ethan Hecht, Christopher Shaddix, Manfred Geier, (2011). Effect of CO2 and steam gasifcation reactions on the oxy-combustion of pulverized coal char Combustion and Flame https://www.osti.gov/biblio/1107067 Publication ID: 23697

Ethan Hecht, Christopher Shaddix, William Houf, (2011). Evaluation of Light-Off Limits for a Novel Oxy-Combustion Process for Advanced EOR https://www.osti.gov/servlets/purl/1110256 Publication ID: 21535

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2011). Evaluation of the Combustion Rates of Lignin Residues from Cellulosic Ethanol Production https://www.osti.gov/servlets/purl/1110249 Publication ID: 21544

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2010). Effect of Particle Size on Oxy-Fuel Combustion Rates of Pulverized Coal https://www.osti.gov/servlets/purl/1673918 Publication ID: 20847

Christopher Shaddix, Ethan Hecht, Kwee-Yan Teh, George Buffleben, Dean Dibble, (2010). Development of efficient, integrated cellulosic biorefineries : LDRD final report https://doi.org/10.2172/1011225 Publication ID: 20304

Christopher Shaddix, Ethan Hecht, Manfred Geier, (2010). Effect of gasification reactions on oxy-fuel combustion of pulverized coal char https://www.osti.gov/biblio/1016996 Publication ID: 18468

Anthony McDaniel, Ethan Hecht, (2008). Analysis of the effect of ripple currents on the electrical behavior of a single cell solid oxide fuel cell Proposed for publication in Journal of Power Systems. https://www.osti.gov/biblio/966606 Publication ID: 15372

Ethan Hecht, (2005). Solid oxide fuel cell reactor for selective oxidation of hydrocarbons https://www.osti.gov/biblio/969562 Publication ID: 5817

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Awards

2015

2011