Methodology for assessing the safety of Hydrogen Systems: HyRAM 1.1 technical reference manual

Groth, Katrina M.; Hecht, Ethan; Reynolds, John; Blaylock, Myra L.; Erin, Carrier,

doi:10.2172/1365456

Cited by 8 publications

(22 citation statements)

References 24 publications

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“…SNL is developing a QRA tool called HyRAM (Hydrogen Risk Assessment Models [49]) specifically to enable risk assessment for defensible, science-based codes and standards [47,50,51]. HyRAM integrates relevant behavior models and probabilistic models into a single analysis framework.…”

Section: Methodology and Toolsmentioning

confidence: 99%

Overview of the DOE hydrogen safety, codes and standards program, part 3: Advances in research and development to enhance the scientific basis for hydrogen regulations, codes and standards

Marchi

Hecht

Ekoto

et al. 2017

International Journal of Hydrogen Energy

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Hydrogen fuels are being deployed around the world as an alternative to traditional petrol and battery technologies. As with all fuels, regulations, codes and standards are a necessary component of the safe deployment of hydrogen technologies. There has been a focused effort in the international hydrogen community to develop codes and standards based on strong scientific principles to accommodate the relatively rapid deployment of hydrogen-energy systems. The need for science-based codes and standards has revealed the need to advance our scientific understanding of hydrogen in engineering environments. This brief review describes research and development activities with emphasis on scientific advances that have aided the advancement of hydrogen regulations, codes and standards for hydrogen technologies in four key areas: (1) the physics of high-pressure hydrogen releases (called hydrogen behavior); (2) quantitative risk assessment; (3) hydrogen compatibility of materials; and (4) hydrogen fuel quality.

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Section: Methodology and Toolsmentioning

confidence: 99%

Overview of the DOE hydrogen safety, codes and standards program, part 3: Advances in research and development to enhance the scientific basis for hydrogen regulations, codes and standards

Marchi

Hecht

Ekoto

et al. 2017

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

show abstract

“…This document will guide users through the software and how to enter and edit certain inputs that are specific to the user-defined facility. Descriptions of the methodology and models contained in HyRAM are provided in [1].…”

Section: Purpose Of This Guidementioning

confidence: 99%

“…For this document, inputs are based on a generic indoor fueling system and The National Fire Protection Association's (NFPA) Hydrogen Technologies Code (NFPA 2) requirements and industry practices. The example installation is based off the generic indoor fueling system further documented in [1] and [3].…”

Section: Generic Indoor Fueling System Examplementioning

confidence: 99%

“…The default options can be changed by selecting another option from the dropdown menus. Description of the different physical consequence models can be found in [1].…”

Section: Physical Consequence Modelsmentioning

confidence: 99%

“…The Risk Metrics window contains the results of the calculated risk in terms of Potential Loss of Life (PLL), Fatal Accident Rate (FAR), and Average Individual Risk (AIR). Details of the risk metric calculations can be found in [1]. Based on preceding example, the Risk Metric output is portrayed by Figure 28:…”

Section: Risk Metricsmentioning

confidence: 99%

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HyRAM V1.1 User Guide

Sena

Ehrhart

Muna

2018

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Hydrogen Risk Assessment Models (HyRAM) is a software toolkit that provides a basis for quantitative risk assessment and consequence modeling for hydrogen infrastructure and transportation systems. HyRAM integrates validated, analytical models of hydrogen behavior, statistics, and a standardized QRA approach to generate useful, repeatable data for the safety analysis of various hydrogen systems. HyRAM is a software developed by Sandia National Laboratories for the U.S. Department of Energy. This document demonstrates how to use HyRAM to recreate a hydrogen system and obtain relevant data regarding potential risk. Specific examples are utilized throughout this document, providing detailed tutorials of HyRAM features with respect to hydrogen system safety analysis and risk assessment.

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HyRAM: A methodology and toolkit for quantitative risk assessment of hydrogen systems

Groth

Hecht

2017

International Journal of Hydrogen Energy

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HyRAM is a methodology and accompanying software toolkit being developed to provide a platform for integration of state-of-the-art, validated science and engineering models and data relevant to hydrogen safety. The HyRAM software toolkit establishes a standard methodology for conducting quantitative risk assessment (QRA) and consequence analysis relevant to assessing the safety of hydrogen fueling and storage infrastructure. The HyRAM toolkit integrates fast-running deterministic and probabilistic models for quantifying risk of accident scenarios, for predicting physical effects, and for characterizing the impact of hydrogen hazards (thermal effects from jet fires, thermal and pressure effects from deflagrations and detonations in enclosures). HyRAM 1.0 incorporates generic probabilities for equipment failures for nine types of hydrogen system components, generic probabilities for hydrogen ignition, and probabilistic models for the impact of heat flux and pressure on humans and structures. These are combined with fast-running, computationally and experimentally validated models of hydrogen release and flame behavior. HyRAM can be extended in scope via usercontributed models and data. The QRA approach in HyRAM can be used for multiple types of analyses, including codes and standards development, code compliance, safety basis development, and facility safety planning. This manuscript discusses the current status and vision for HyRAM.

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Methodology for assessing the safety of Hydrogen Systems: HyRAM 1.1 technical reference manual

Cited by 8 publications

References 24 publications

Overview of the DOE hydrogen safety, codes and standards program, part 3: Advances in research and development to enhance the scientific basis for hydrogen regulations, codes and standards

Overview of the DOE hydrogen safety, codes and standards program, part 3: Advances in research and development to enhance the scientific basis for hydrogen regulations, codes and standards

HyRAM V1.1 User Guide

HyRAM: A methodology and toolkit for quantitative risk assessment of hydrogen systems

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