hydrogen energy system Articles
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A combined graph theory and analytic hierarchy process approach for multicriteria evaluation of hydrogen energy systems
Hydrogen is a renewable energy source and has the potential to mitigate the green house gas effect and to meet the increasing global electricity demand. In the present study, a multicriteria methodology is developed by combining graph theory and analytic hierarchy process methods for the evaluation and selection of hydrogen energy systems. The hydrogen energy system alternatives are assessed ...
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China must be encouraged to develop hydrogen energy and fuel cell technology using domestic resources
This paper describes the current situation in China and the reasons for the rapidly increasing consumption of oil and the consequent search for new sources. Some suggestions are made for the rapid development and commercialisation of hydrogen energy systems in China using domestic resources. China could satisfy the energy demand with her domestic resources of renewable energies and depending on ...
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Combating global warming via non-fossil fuel energy options
Non-fossil fuel energy options can help reduce or eliminate the emissions of greenhouse gases and are needed to combat climate change. Three distinct ways in which non-fossil fuel options can be used in society are examined here: the capture/production of non-fossil fuel energy sources, their conversion into appropriate energy carriers and increased efficiency throughout the life cycle. ...
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Analysis of availability and accessibility of hydrogen production: An approach to a sustainable energy system using methane hydrate resources
It is considered that use of hydrogen as an energy source may contribute to environmental improvement and provide an alternative energy system. Moreover, it is anticipated that hydrogen will be in great demand in the near future for use in such vehicles as fuel cell-based cars. Research and development of a number of advanced methods of hydrogen production (OTEC, water photolysis using a ...
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Hydrogen engine cars
Alternate Energy Corporation, which develops hydrogen systems, has teamed up with the Canadian company Feel Good Cars Inc. (FGC) to produce a prototype hybrid vehicle using batteries and a hydrogen fueled engine. Alternate Energy will modify a ZENN vehicle provided by FGC. The ZENN (zero emission, no noise) is a medium speed neighborhood electric car. FGC hopes to demonstrate that a hydrogen ...
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Scenarios for the role of hydrogen in a future energy system based on renewable energy
An all-renewable energy system for a group of North European countries is investigated by temporal simulation of the demand-supply matching for various system configurations. The role of hydrogen technologies for energy storage and fuel cell applications is studied and applied to both stationary and transportation sectors. It is shown that there is scope for considerable amounts of energy trade ...
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Performance assessment of an integrated absorption cooling–hydrogen liquefaction system using geothermal energy
An integrated geothermal based triple effect absorption cooling and Linde–Hampson system for hydrogen gas liquefaction is proposed and analysed thermodynamically. The effect of various operating conditions and parameters on the system performance is studied. The results show that the mass of hydrogen gas pre–cooled by the absorption system per unit mass flow rate of geothermal water flowing ...
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Hydrogen production on Utsira
The hydrogen plant on Utsira has started producing electricity. This means that the 10 households in the island community west of Karmøy are one step closer to becoming a selfsufficient hydrogen society. From the summer, 10 of the households on the island of Utsira will get all their electricity in the form of renewable energy. This is the world's first full-scale autonomous renewable ...
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Where does CO2 free hydrogen gas come from?
It’s no longer a question whether hydrogen will have a major impact on the automotive industry, but rather an accepted fact that it will. Volvo’s and Daimler’s recent announcement (read here) of joint efforts in developing and manufacturing fuel cells is the latest sign of the importance of hydrogen for energy storage. But how is hydrogen produced, where does the gas come from, ...
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Safety assessment of iodine and hydrogen released during a severe accident in a pressurised water reactor
In the case of a severe accident in a nuclear power plant, iodine is considered one of the most important fission products, from the health effect point of view, and hydrogen represents a great risk to the containment integrity. Using the containment spray system, to reduce the amount of iodine released to the environment, may increase the probability of hydrogen combustion by condensing steam. ...
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