Recent Changes - Search:




edit SideBar

Storage Gaseous Hydrogen

Compressed gaseous hydrogen (CGH2) storage is used both in stationary and in mobile applications.

Examples of storage systems for stationary applications are conventional 50-liters steel bottle bundles, tube trailers or fixed tube bundles (CastelloP:2005)(figure 1). The term “conventional” refers to the fact that these bottle/tube systems are a proven technology based on the use of mainly steel as structural material and involving gas pressures up to 230 bar. These systems are used essentially at industrial chemical/metallurgical plants and distribution centres, such as fuelling stations or cylinder filling centres, sites along pipelines, hydrogen production sites associated with offshore wind parks or stationary power applications.

As stated in the Strategic Research Agenda of the European Hydrogen & Fuel Cell Technology Platform, “underground and underwater storage facilities are considered to be of strategic importance to match hydrogen production and demand and to ensure energy reliability. Their deployment depends more on regulatory approval than on further research.” (HFP:StrategicResearchAgenda:2005).

Concerning mobile applications, high-pressure CGH2 storage is being actively researched since the early nineties. The idea of fuelling road vehicles with hydrogen has driven the development of lightweight and highly resistant tanks made of composite materials to store the gas at up to 700 bar. CGH2 tanks for vehicles can be classified in four types (see EN ISO 11439:2000) as showed in figures 2 and 3:

The tanks used in vehicles are type III and type IV. The targets set by the Strategic Research Agenda are (vehicle range of 500 to 600 km): 5 kg of storage at 700 bar (~120 @ 20ºC), with H2 delivery temperatures between -40ºC and +85ºC and a lifetime of at least 1,500 cycles. Vehicle tanks are fitted with various safety and monitoring-related components (figures. 4 and 5).


Castello P. and Salyk O. (2005) Testing of Hydrogen Safety Sensors in Service Simulated Conditions. Paper presented at the First International Conference on Hydrogen Safety, Pisa, Italy.(BibTeX)
Daimler-Chrysler (2002) High pressure storage of hydrogen. EIHP2 Mid-Term Assessment Workshop.(BibTeX)
{European Hydrogen and Fuel Cell Technology Platform. Implementation Panel} (2005) Strategic Research Agenda..(BibTeX)
US Department of Energy (2002) National hydrogen energy roadmap, Based on the results of the National hydrogen energy roadmap workshop, April 2--3 2002, Washington, DC..(BibTeX)
---- << Storage - Introduction | Content | Storage - Liquid Hydrogen >>

Edit - History - Print - Recent Changes - Search
Page last modified on December 21, 2008, at 05:15 PM