Failure Modes and Effects Analysis for Hydrogen Fueling Options

摘要

Hydrogen has generated considerable interest in California and nationwide as a vehicle fuel to address clean air goals and petroleum dependency issues. The successful proliferation of hydrogen-fueled vehicles statewide will require expansion of the network of hydrogen fueling stations. Safe practices in production, storage, distribution, and enduse of hydrogen are essential for the successful introduction of hydrogen vehicles. The objective of this report is to develop a safety analysis that will be useful for stakeholders involved in the development, approval, procurement, and operation of these stations and the hydrogen vehicles. Specifically, this report addresses: Key safety issues related to the design, installation, and operation of four types of hydrogen fueling stations and a compressed natural gas (CNG) fueling station (delivered liquid hydrogen, on-site electrolysis, on-site reformation of natural gas, and delivered compressed hydrogen gas)$ Key hydrogen fueling station failure modes typical of selected fueling stations$ Assignment of risk level to failure modes and provides, where necessary and applicable, recommendations for mitigating the risk level$ Key safety issues associated with the different fueling approaches$ and Information on unique properties of hydrogen necessary for a detailed understanding of the fuel. A top-level safety analysis was performed using the Failure Modes and Effects Analysis (FMEA) technique a powerful engineering tool that helps to identify potential problems that may exist in a product or process before they occur.