SAE TIR J2579-X: Cryo-compressed Hydrogen Storage Systems for Hydrogen Land Vehicles
Note:
As this TIR very closely relates to the scope of SAE J2579 and in the future may be integrated into SAE J2579, it is recommended to consider this TIR a part of the SAE J2579 family. ‘X’ denotes a placeholder for an appropriate number (Ex, -1, -2).
J2579/1
This document contains requirements for materials, design, manufacture, and performance-based testing of refillable Cryo-compressed Hydrogen Storage Systems (CCHSS) intended for the storage of cryo-compressed hydrogen (CcH2) onboard land vehicles. The CCHSS:
A) Is an assembly of the container(s), container attachments, and closure and safety devices,
B) Are permanently attached to a land vehicle,
C) Have a container water capacity of up to 1,000 L,
D) Have a nominal working pressure of 35 MPa,
E) Stores cryogenic compressed hydrogen of quality according to ISO 14687 or SAE J2719
With appropriate due diligence, this document may be used as guidance for CcH2 components, systems, or applications that are otherwise not in scope.
Rationale: On-road transportation is one of the world’s largest emitters of carbon dioxide. Hydrogen is an energy carrier that can abate carbon dioxide emissions in this sector and therefore has received significant attention from both public institutions and private industry.
An Industry Need Exists:
Based on customer demand, various companies are developing Cryo-compressed Hydrogen (CcH2) technology today with truck demonstrations starting this year and planned market entry starting within four years.
Standardization of this technology to assure safety and scalability is paramount. Of particular importance is standardization of the CcH2 onboard hydrogen storage system. Standardization of onboard hydrogen storage systems for vehicle applications is common industry practice with standards existing in SAE, CSA, and ISO.
Standardization of CcH2 is limited today, and no standard exists or is under development for the CCHSS. The only established precedence is ISO TC/197 WG36 which has standards under development for the CcH2 fueling connector and the CcH2 fueling protocol.
Why an SAE TIR:
SAE is a world-renowned Standards Development Organization (SDO), with a long-running history in standardizing hydrogen technologies.
As CCHSS technology is still under development, a TIR is the most appropriate form.
