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HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) v.6.1

RESOURCE

Publicly Accessible Repository
https://github.com/sandialabs/hyram
https://doi.org/10.11578/dc.20251106.9
Previous Version
https://doi.org/10.11578/dc.20250506.2

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Abstract

SAND2025-11565O HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) is a tool for conducting quantitative risk assessment (QRA) in transportation systems. HyRAM+ contains validated, simplified release behavior models, engineering models, and generic data relevant to hydrogen installations. HyRAM+’s platform integrates models and data to conduct QRA on user-defined hydrogen or other alternative fuel systems. The software will enable the international safety research community to add validated models to the HyRAM+ platform for use in QRAs. HyRAM (hydrogen-only) versions 1.0 to 3.1 were developed by Sandia for the Department of Energy (DOE) Hydrogen and Fuel Cell Technologies Office. The following agencies contributed to the development of HyRAM+ version 4.0 regarding the addition of methane (natural gas) and propane models: the DOE Vehicle Technologies Office and the Department of Transportation Pipeline and Hazardous Material Safety Administration. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.
Developers:
Groth, Katrina [1] ;  Walkup, Greg [1] ;  Ehrhart, Brian [1] ;  Muna, Alice [1] ;  Blaylock, Myra [1] ;  Hecht, Ethan [1] ;  Ekoto, Isaac [1] ;  Reynolds, John [2] ;  Sims, Cianan [3] ;  Carrier, Erin [1][4][5] ;  Schroeder, Benjamin [1][4][5]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. SAIC
  3. Sims Industries, LLC
  4. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  5. Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Release Date:
2025-08-19
Project Type:
Open Source, Publicly Available Repository
Software Type:
Scientific
Programming Languages:
C#
Python
Version:
v.6.1
Licenses:
GNU General Public License v3.0
Sponsoring Org.:
Code ID:
169685
Site Accession Number:
SCR#1703.4
Research Org.:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Country of Origin:
United States

RESOURCE

Publicly Accessible Repository
https://github.com/sandialabs/hyram
https://doi.org/10.11578/dc.20251106.9
Previous Version
https://doi.org/10.11578/dc.20250506.2

SAVE / SHARE



SNL Badge

Citation Formats

Groth, Katrina, Walkup, Greg W., Ehrhart, Brian D., Muna, Alice B., Blaylock, Myra L., Hecht, Ethan, Ekoto, Isaac, Reynolds, John T., Sims, Cianan, Carrier, Erin, and Schroeder, Benjamin. HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) v.6.1. Computer Software. https://github.com/sandialabs/hyram. USDOE. 19 Aug. 2025. Web. doi:10.11578/dc.20251106.9.
Groth, Katrina, Walkup, Greg W., Ehrhart, Brian D., Muna, Alice B., Blaylock, Myra L., Hecht, Ethan, Ekoto, Isaac, Reynolds, John T., Sims, Cianan, Carrier, Erin, & Schroeder, Benjamin. (2025, August 19). HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) v.6.1. [Computer software]. https://github.com/sandialabs/hyram. https://doi.org/10.11578/dc.20251106.9.
Groth, Katrina, Walkup, Greg W., Ehrhart, Brian D., Muna, Alice B., Blaylock, Myra L., Hecht, Ethan, Ekoto, Isaac, Reynolds, John T., Sims, Cianan, Carrier, Erin, and Schroeder, Benjamin. "HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) v.6.1." Computer software. August 19, 2025. https://github.com/sandialabs/hyram. https://doi.org/10.11578/dc.20251106.9.
@misc{ doecode_169685,
title = {HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) v.6.1},
author = {Groth, Katrina and Walkup, Greg W. and Ehrhart, Brian D. and Muna, Alice B. and Blaylock, Myra L. and Hecht, Ethan and Ekoto, Isaac and Reynolds, John T. and Sims, Cianan and Carrier, Erin and Schroeder, Benjamin},
abstractNote = {SAND2025-11565O HyRAM+ (Hydrogen Plus Other Alternative Fuels Risk Assessment Models) is a tool for conducting quantitative risk assessment (QRA) in transportation systems. HyRAM+ contains validated, simplified release behavior models, engineering models, and generic data relevant to hydrogen installations. HyRAM+’s platform integrates models and data to conduct QRA on user-defined hydrogen or other alternative fuel systems. The software will enable the international safety research community to add validated models to the HyRAM+ platform for use in QRAs. HyRAM (hydrogen-only) versions 1.0 to 3.1 were developed by Sandia for the Department of Energy (DOE) Hydrogen and Fuel Cell Technologies Office. The following agencies contributed to the development of HyRAM+ version 4.0 regarding the addition of methane (natural gas) and propane models: the DOE Vehicle Technologies Office and the Department of Transportation Pipeline and Hazardous Material Safety Administration. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.},
doi = {10.11578/dc.20251106.9},
url = {https://doi.org/10.11578/dc.20251106.9},
howpublished = {[Computer Software] \url{https://doi.org/10.11578/dc.20251106.9}},
year = {2025},
month = {aug}
}