Compressor Station Differential Risk Assessment for Hydrogen and Natural Gas Blends

Technical Report · Fri Nov 01 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2480075· OSTI ID:2480075

Louie, Melissa Sui-hui ^[1]; Brooks, Dusty Marie ^[1]; Glover, Austin Michael ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Blending hydrogen into existing natural gas pipelines is a current initiative for large-scale hydrogen deployment in the United States. Understanding changes in hazards and risk for fuel blends can help inform regulations. A differential risk assessment was conducted to understand how the safety profile of fires and unignited flammable plumes of leaking fuel would change based on blend composition. The area affected by harmful heat fluxes from jet fires was found to be larger for blends with more natural gas in them, while the distance affected by unignited flammable fuel concentrations was found to be larger for blends with more hydrogen in them. Component leak frequencies and ignition probabilities greatly impact both heat flux risk and the flammable plume risk. The collection of additional blend-specific industry data could help understand which assumptions are most valid to make when calculating risk.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: NA0003525
• OSTI ID: 2480075
• Report Number(s): SAND--2024-15587
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN