FAQ Keywords: Boiling Liquid Expanding Vapor Explosion (BLEVE)

A BLEVE from a liquid hydrogen storage tank is highly unlikely due to vacuum insulation, self-cooling, and redundant pressure relief systems.

By definition, liquid hydrogen can BLEVE, but this is highly unlikely. Liquid hydrogen is stored in a double wall tank with vacuum insulation. This protects the primary pressure vessel from direct…

BLEVE Standoff Distances

These distances are based primarily on hydrogen piping releases and resultant vapor clouds and jet flames based on pipe diameter and pressure. It’s important to note that many facilities have…

Criterion for venting flow rate of LH2 facilities

Relief device sizing for liquid hydrogen tanks follow recognized standards such as CGA S1.3. The sizing criteria include a worst-case scenario of an engulfing fire with loss of vacuum integrity.…

Gaseous Hydrogen Safety Considerations
Pressure relief device settings for LH2 tanks

There are several levels of documents which can be used to assist with the design, sizing, selection, and installation of the pressure relief device settings for LH2 tanks. 

Pressure…

Venting for Gaseous and Liquid Hydrogen Webinar Q&As
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The portal brings together and enhances the utility of a variety of tools and web-based content on the safety aspects of hydrogen and fuel cell technologies to help inform those tasked with designing, approving or using systems and facilities, as well as those responding to incidents.

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