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Standards Development
The document seeks to promote standardization of the way to establish safety distances for LH2 storages with the volume from 3 tonnes of stored H2 to 10 tonnes. The document describes elements relevant to the definition of the methodology for the calculation of these safety distances, e.g. ● most credible scenarios to be considered ● leak sizes ● prevention and mitigation barriers needed to eliminate catastrophic scenarios with a particular focus on BLEVE and massive spillage ● examples of harm criteria (e.g. overpressure, thermal flux, thermal dose) ● example of consequences distances
The deployment of a competitive HD refueling infrastructure requires LH2 logistics, including LH2 storages at HRS sites with the capacity to store up to 10 tonnes of LH2. IEA TCP H2 Task 43 has reviewed the approaches used in various jurisdictions worldwide for the calculation of the safety distances for LH2 storages. The purpose of this TR is: ● to describe the methodologies that could be applied to determine safety distances for LH2 storages ● to describe the mitigation barriers that could be implemented to eliminate critical scenarios or decrease separation distances Having an ISO Technical Report would enhance safety and pave the way for consistency of requirements worldwide.
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