Best practices for metallic vent stacks focus on safe hydrogen venting, addressing dispersion, ignition, and structural considerations.

What are the best practices for metallic vent stacks?

There are dozens of safety considerations for safe design of hydrogen vent stacks. Their primary function
is to vent the hydrogen safely, so vent stacks should be designed such that the gas dispersion and
radiation profile (if ignited) do not impact surrounding equipment, buildings, or people. Documents such
as CGA G5.5, Hydrogen Vent Systems, provide numerous details regarding design. Vent stacks should be
designed to handle expected thrust loads, weather conditions, and hydrogen ignition scenarios. Various
building and electrical codes describe basic grounding requirements.

FAQ Category
System Design
FAQ Keyword
Vent Stack
Safe Venting
Design Practices
Grounding
Submission Year
2023
Month
04
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This material was prepared as an account of work sponsored by an agency of the United States Government.
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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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