Quantity and Pressure limitation

This LAP¨refers to the quantity and pressure limitations. It underlines what are the requirements and limitations in terms of pressure and quantity of hydrogen for hydrogen transport. Finally, it shows if it is possible to increase the pressure/quantity, and if yes which authority is competent, what is the process to follow, how long does it takes and what are the costs associated if known.

Glossary:

Quantity and Pressure limitation represent the maximum quantity and/or pressure of gases which is allowed to be transported.

Pan-European Assessment:

There is no limitation in terms of pressure, (mostly transported at around 200-300 bars) In terms of quantity, the limitation is connected to the maximum weight the truck can transport.

select country:

Is it a barrier?

Yes

Type of Barrier

Structural barrier

Assessment Severity

Assessment

The LAP is needed to determine the pressure and the thereto related quantity. One can say that industry will apply standardized cylinders (and other storage possibilities) which itself try to fulfil the requirements regarding investment/cost optimum taking the transportation restrictions – given by the ADR – into account .(in other words, they try to find a ratio of diameter to length which ensures the lowest possible amount of material plus fabrication of the material – taking handling and transportation restrictions – if any – into account. Taking the 500 bar technology of Linde as a basis, one can see that higher payloads are envisaged and supportive to the economic optimisation. If case one intends to use non standardised cylinders the investments for the equipment will increase, the possible max. transportation quantity might decrease (road transport) and at the same time handling will be impeded, subsequently handling and transportation costs will increase. So the development of a technology which enables higher payloads will be a success if becomes the “new” standard

Questions:

Question 1 What are the pressure requirements and limitations accepted for hydrogen transport by road?

The standard pressure for gas cylinders is currently 200 bar.

Question 2 What are the quantity requirements and limitations accepted for hydrogen transport by road?

Quantities up to 333 kg/l hydrogen per single transportation unit can be transported with minimum requirements according to the ADR.

Describe the comparable technology and its relevance with regard to hydrogen

Natural gas and other flammable gases/liquids

National legislation:

Law on transportation of dangerous goods = Bundesgesetz über die Beförderung gefährlicher Güter
Article 2 specifies the relevant regulations – namely ADR – to be applied. Article 8 deals with permissions regarding transport of dangerous goods
ADR European Agreement concerning the international carriage of dangerous goods by roads – enforced by the Austrian law BGBl. 522/1973
Information sheet Nr. 17 A: Safe transport of gas bundles and cryo container = Informationsblatt Nr. 17A; Sicherer Transport von Gasflaschen und Kryo–Behältern
The entire information sheet
ADR
Section 3, 8 and 9

EU Legislation:

ADR European Agreement concerning the international carriage of dangerous goods by roads.
hazardous materials may in general be transported internationally in wheeled vehicles, provided that conditions be met for the product packaging and labelling; and that the construction, equipment, and use of vehicles for the transport is compliant:
ADR European Agreement concerning the international carriage of dangerous goods by roads.ADR European Agreement concerning the international carriage of dangerous goods by roads.
ISO/DIS 17519 (EN) Gas cylinders – Refillable, permanently mounted composite tubes for transportation
Specifies the minimum requirements for the material, design construction and workmanship, manufacturing processes, examination and testing at time of manufacture of an assembly of permanently mounted composite tube(s) in a frame with associated components.