External Hydrogen Supply June 8, 2011
Introduction Hydrogen from a central production plant could in principle be delivered to the CHIC refuelling stations via pipeline. In Europe, however, only ca. 1,000 km of hydrogen pipelines exist and none of them runs near one of the CHIC facilities. So external supply, both on a regular basis and as a back-up source, has to take place via road transport. Hydrogen quality is certified by the suppliers for each delivery. Within the CHIC project, London currently receives delivered liquid hydrogen. Oslo will receive delivered hydrogen and produce hydrogen on site, while Milan will also produce hydrogen onsite from renewable sources. Liquid Supply A truck can carry up to about 3.3 tonnes of liquid hydrogen (LH2), equivalent to about 36,700 Nm3. This way of supply has the advantage that one delivery to the local station storage can last for more than 20 days with three buses served there. It is preferable for long distances between production site and consumer, common in the USA. A drawback of liquid supply is that, due to the very low temperatures, all storage vessels have to be very well insulated. Small amounts of hydrogen can also be lost if the station is not being used for [...]
Learning about Hydrogen Fuel Cells December 2, 2010
Information related to Hydrogen and Hydrogen powered vehicles and buses can be found from numerous sources. In order to assist students, teachers, or simply curious minds below you may find links to view videos and other educational sites. Videos English Heading for the Future – The New Fuel Cell Buses US Department of Energy Fuel Cell Animation German HH2 – Hamburg kommt an mit Wasserstoff For Teachers The Online Fuel Cell Information Centre (available in Portuguese and Spanish) London Schools Hydrogen Challenge: developed by the London Hydrogen Partnership. It is designed to support the Key Stage 3 National Curriculum for Science, ICT, Geography, Citizenship and PSHE. The History of Hydrogen Powered Vehicles HyWeb – the Hydrogen and Fuel Cell Information System on the Web H2 and you – A learning site created by the Hydrogen Education Foundation
Information related to Hydrogen and Hydrogen powered vehicles and buses can be found from numerous sources. In order to assist students, teachers, or simply curious minds below you may find links to view videos and other educational sites. Videos English Heading for the Future – The New Fuel Cell Buses US Department of Energy Fuel Cell Animation German HH2 – Hamburg kommt an mit Wasserstoff For Teachers The Online Fuel Cell Information Centre (available in Portuguese and Spanish) London Schools Hydrogen Challenge: developed by the London Hydrogen Partnership. It is designed to support the Key Stage 3 National Curriculum for Science, ICT, Geography, Citizenship and PSHE. The History of Hydrogen Powered Vehicles HyWeb – the Hydrogen and Fuel Cell Information System on the Web H2 and you – A learning site created by the Hydrogen Education Foundation
Hydrogen: its’ in the stars August 30, 2010
Hydrogen is an energy carrier like electricity and the most abundant chemical element on earth and in the Universe. With its high gravimetric energy density (almost three times that of gasoline) and low weight it is an excellent and safe energy storage medium able to store large quantities of intermittent renewable energy that can not be absorbed by the electricity grid. Properties and Application Hydrogen has been used as an industrial gas for more than 100 years. In 2000, the world production and use of hydrogen was estimated around 500 billion Nm 3 (normal cubic metres, cf. table), about 60 billion Nm 3 of this by the European Union (EU-15). Most of these quantities are ‘captive’ produced in bulk amounts for immediate consumption on site, mainly in chemical and petrochemical plants. On the other hand, road transport by truck to smaller customers is also an everyday business with proven codes of practice. Due to its low volumetric energy density, hydrogen is stored and transported as a compressed gas (CGH2) or in liquefied state (LH2) at about -253°C. Hydrogen’s low boiling point makes liquefaction very energy intensive. Most of the hydrogen is used as a raw material for the production of a [...]
Hydrogen is an energy carrier like electricity and the most abundant chemical element on earth and in the Universe. With its high gravimetric energy density (almost three times that of gasoline) and low weight it is an excellent and safe energy storage medium able to store large quantities of intermittent renewable energy that can not be absorbed by the electricity grid. Properties and Application Hydrogen has been used as an industrial gas for more than 100 years. In 2000, the world production and use of hydrogen was estimated around 500 billion Nm 3 (normal cubic metres, cf. table), about 60 billion Nm 3 of this by the European Union (EU-15). Most of these quantities are ‘captive’ produced in bulk amounts for immediate consumption on site, mainly in chemical and petrochemical plants. On the other hand, road transport by truck to smaller customers is also an everyday business with proven codes of practice. Due to its low volumetric energy density, hydrogen is stored and transported as a compressed gas (CGH2) or in liquefied state (LH2) at about -253°C. Hydrogen’s low boiling point makes liquefaction very energy intensive. Most of the hydrogen is used as a raw material for the production of a [...]