Compressed Natural Gas Component Leak Frequency Estimation

Technical Report · Sat Oct 01 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/1892133· OSTI ID:1892133

Brooks, Dusty ^[1]; Glover, Austin ^[1]; Ehrhart, Brian D. ^[1]

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

The frequency of unintended releases in a compressed natural gas system is an important aspect of the system quantitative risk assessment. The frequencies for possible release scenarios, along with engineering models, are utilized to quantify the risks for compressed natural gas facilities. This report documents component leakage frequencies representative of compressed natural gas components that were estimated as a function of the normalized leak size. A Bayesian statistical method was used which results in leak frequency distributions for each component which represent variation and uncertainty in the leak frequency. The analysis shows that there is high uncertainty in the estimated leak frequencies due to sparsity in compressed natural gas data. These leak frequencies may still be useful in compressed natural gas system risk assessments, as long as this high uncertainty is acknowledged and considered appropriately.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
• DOE Contract Number: NA0003525
• OSTI ID: 1892133
• Report Number(s): SAND2022-14164; 710875
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS