As First State Hydrogen continues to advance its groundbreaking clean hydrogen production facility in the U.S., the spotlight intensifies as hydrogen becomes an increasingly key player in the energy transition.

With the projected uptick of new hydrogen production and handling projects, let's explore hydrogen fire protection, reflect on the measures and standards established to mitigate risks, and ensure that the hydrogen economy thrives.

The challenges of hydrogen fire protection

As the hydrogen industry experiences a boom, the issue of fire protection emerges as a critical concern. It's important to note that hydrogen fires can pose a significantly higher risk than traditional fuel fires, burning hotter and more rapidly due to their higher outflow rates. The diverse range of storage and transport options, from cryogenic liquids to high-pressure cylinders, further complicates safety measures. This underscores the industry's urgent need to prioritize risk mitigation for common hydrogen applications, such as high-pressure cylinders used in fuel-cell vehicles and data centers, to ensure safety as this energy source scales up.

Hydrogen jet fire test results

The author's company, a global leader in paint and coatings, recently tested an industry leading, flexible epoxy intumescent passive fire protection (PFP) coating to evaluate the material response against high pressure hydrogen jet fires to determine if current ISO jet fire standards are adequate for the challenges hydrogen poses. Collaborating with the United Kingdom's Health and Safety Authority, they conducted hydrogen jet fire tests at a specialized facility. The team replicated conditions of high-pressure hydrogen leaks and their effects on steel and protective coatings. The initial tests revealed unprotected steel reaching critical temperatures rapidly under hydrogen fires. The steel coated with advanced PFP coatings proved highly effective. The PFP coatings help keep steel well below critical temperatures throughout the exposure, indicating their potential to protect against structural failures during hydrogen fires.

These initial tests can contribute to setting standards for hydrogen fire protection. The results offer safety experts critical data for better protecting industrial environments against high-pressure hydrogen jet fires.

A call for a fire protection standard

The hydrogen industry currently relies on oil and gas regulations for specialized fire protection. While safety experts actively debate whether these standards can be adapted or whether entirely new criteria are necessary, industry collaboration remains key. Paint and coating companies, international standard organizations, safety groups, and energy regulators are all actively involved in assessing the adaptability of existing standards for hydrogen fires. The initial tests show promising results, suggesting that current oil and gas fire protection measures might be adapted for hydrogen fire protection, potentially leading to standards for the growing hydrogen industry.

Developing fire protection standards for the hydrogen industry remains a collective industry responsibility. Safety engineers, industry specialists, non-government officials (NGO), and policymakers must work together to ensure the hydrogen industry advances safely and responsibly. The paint and coatings industry, in particular, will play a crucial role in creating these standards. Leveraging their expertise in protective coatings, they can meet hydrogen's unique needs, from anti-corrosion to chemical resistance and passive fire protection.

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Stuart Bradbury is the PPG business development manager of Fire Protection, Protective and Marine Coatings.