Hydrogen energy and energy storage safety distance requirements

What is the maximum safety distance for hydrogen refueling stations?

For the hydrogen refueling stations, a maximum safety distance of 35 m is calculated. However, despite the relatively small safety distances, the maximum effect distances (distance to 1% lethality) can be very large, especially for stations with a supply and storage of liquid hydrogen.

Are there safety considerations for a hydrogen system?

The safety considerations for the design of hydrogen systems include electrical considerations, as outlined in Section 101. Separate standards and guidelines address different portions of overall hydrogen systems.

What is the federal regulation for hydrogen storage and handling?

At the federal level there are regulations, such as 29 CFR 1910 Subpart H Hazardous Materials that specifically address the storage, use, and handling of hydrogen. Table 4 gives an overview of the regulations, codes, and standards that address hydrogen technologies safety.

What is the risk level for hydrogen refueling?

Figure 3 shows that for a hydrogen refueling station with supply by pipeline or local production, or supply by tube- or cylinder trailer the risk level is 10-9 or lower at a distance of 50 m from the station. When supply of liquid hydrogen is applied the risk level of 10-9 is reached at a much larger distance; 270 m from the source.

What are the Eiga guidelines for hydrogen safety?

The EIGA guideline uses a per incident event the frequency shall not exceed 3.5 x 10 -5 per annum. For events with a higher frequency, safety distances must be established. This means that for each event the Achievable) region between 10 -6 and 10-5. The IEA HIA Task 19 Hydrogen Safety has region between 10 -7 and 10-5.

What are the requirements for storing hydrogen in a container?

To ensure safety while storing hydrogen, containers must be protected, secured, and stored upright. Additionally, welding or cutting operations and smoking are prohibited in the area while hydrogen is present, and the area must be adequately ventilated.