fuel cell energy Articles
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The viessmann domestic fuel cell energy centre in its trial phase
As far as mass production is concerned, the domestic fuel cell energy centre represents an equipment without much history. The reversible and irreversible influences on its function and the service life of the equipment are not yet not fully understood; in particular the decrease in the effectiveness of the catalysts poses a real challenge. The service life required for detached and two-family ...
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Biomass-fired fuel cells
The results are presented of a techno-economic analysis of systems integrating biomass gasification plant with phosphoric acid and molten carbonate fuel cells. The cases studied relate to the generation of electricity at a scale of 500 kWe. At this level, the plant would be suitable for small-scale commercial or industrial application and would allow for the export of surplus electricity. The ...
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Fuel cells - the environmentally friendly energy converter and power generator
Heat engines based on fossil fuel combustion produce harmful pollutant emissions. Environmental concerns and sustainable development call for new technology for energy conversion and power generation, which is more efficient, environmentally friendly and compatible with alternative fuels and renewable energy sources and carriers. Fuel cells meet all these requirements and are being rapidly ...
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Power electronics for distributed and co-generation
Distributed and Co-Generation has great growth potential, as the world is becoming more energy dependent and energy demanding. Distributed and Co-Generation creates alternative solutions to serve the growing energy market. In this paper, a comprehensive review of the different sources of distributed power is discussed including the main sources of the dispersed generation such as solar energy, ...
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Development of a generic fuel cell model: application to a fuel cell vehicle simulation
In this paper, a novel approach to fuel cell modelling is proposed. The model is obtained from manufacturer datasheets and is able to represent the behaviour of any hydrogen fuel cells. The simulation results are as expected with an error in the range of ±1%, provided a controlled stack internal humidity. The procedure to extract data from fuel cells datasheet is described along with the method ...
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Effect of reforming on the overall efficiency of a solid oxide fuel-cell based power plant system fed by methane
In the present work, energy and exergy system analysis are used to estimate the thermodynamic performance of a SOFC system fuelled by methane. More precisely, the present work examines in detail the influence of the presence or absence of the reformer within the whole apparatus and the consequent energy and exergy losses due to the reforming process. It was found that the exergetic efficiency for ...
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Key Objectives in Modern Fuel Cell Studies
What are Fuel Cells? Fuel cells use the chemical energy of hydrogen or an alternative fuel to cleanly and efficiently produce electricity. Using hydrogen as the fuel only produces water, heat, and electricity. Hydrogen (the fuel) is supplied continuously, unlike in a battery, and a dynamic equilibrium is maintained. ...
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Model of a non-isothermal tubular ammonia reformer for fuel cell applications
There is an increasing interest in the use of ammonia as hydrogen carrier for fuel cell applications. Ammonia decomposes catalytically into hydrogen and nitrogen without the emission of catalyst poisoning or polluting gases such as CO. Ammonia decomposition in a catalytic reformer which comprises of a Ni based wall reactor is modelled and calibrated using actual experimental data in order to ...
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Fuel cell heating appliances field tests
The beginning of field tests with a new generation of fuel cell heating appliances (FCHAs) under the responsibility of Vaillant brings fuel cell technology for decentralized household energy supply into a new phase. The objective of testing the systems, which were developed in close cooperation with the US company Plug Power, is to examine how complexity and thus the systems' costs can be ...
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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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Reviewing the factors affecting regenerative molten carbonate fuel cells
To evaluate the possibility to use molten carbonate fuel cell technology for high temperature electrolysis, the factors affecting the electrode reactions have been examined by surveying the published literature. The literature results showed that H2, CO2 and CO evolved as cathode off–gases and O2 as anode gas. At low polarisation, the discharge of oxide ions to O2 was the only anodic process; ...
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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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When Communications Africa focuses on energy provision for telecom towers, GenCell offers attractive alternatives
In case you missed it, we encourage you to read the interview with GenCell CEO Rami Reshef in the April edition of Communications Africa. When asked about the role of fuel cells in the very competitive African energy landscape, Mr. Reshef responds, “Fuel cells are playing an integral role in energy generation and storage in Africa, both for rural electrification and for applications in ...
By GenCell Ltd
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An Ammonia-powered Fuel Cell Electric Golf Cart System
Ammonia (NH3) is a carbon-free hydrogen (H2) carrier, which enables liquid-phase H2 storage and transport under mild conditions. Although the concept of NH3-to-H2 has been frequently proposed, the practical application of NH3 as the energy source for H2 power automotive systems is rarely reported. To close the gap between NH3 supply and H2 utilization, we demonstrated an NH3-powered fuel ...
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Operating experiences with a molten carbonate fuel cell at Stuttgart-Möhringen wastewater treatment plant
Fuel cells on wastewater treatment plants are a relatively new technology to convert biogas from anaerobic digestion into thermal and electrical energy. Since the end of 2007, a type of MCFC fuel cell (>250 kWel, 180 kWth) has been installed at Stuttgart-Möhringen wastewater treatment plant. The goals of this research project are to raise the power self-sufficiency in Stuttgart-Möhringen, to ...
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Who uses innovative energy technologies, when and why? The case of fuel cell MicroCHP in households
Users can play an important role in the diffusion of sustainable energy technologies. Using a postal survey and focus group discussions, the paper explores the characteristics, motives and expectations of household users in the case of fuel cell?driven small combined heat and power plants. (Potential) users are highly educated and well off, almost exclusively male and relatively old. Their main ...
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Application of power electronics with the US DOE distributed generation programme
Power electronics play an important role in achieving affordable, highly fuel-efficient fuel cell power generation plants and will enable the US Department of Energy's Office of Fossil Energy Fuel Cells programme to achieve higher national goals: environmental, economic and energy security. The initial focus on power electronics has been to understand the interactions between the SOFC stack, the ...
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Performance assessment of a 5 kW SOFC cogeneration fuel cell
The performance of a 5 kW Solid Oxide Fuel Cell (SOFC) will be studied and described in this paper. This will help to significantly reduce residential Green House Gas (GHG) emission to about 20%, when compared with the actual emissions, based on the high-performance boiler and electricity produced by high-efficiency combined cycle. The particular benefit of SOFC, when compared with other ...
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The hydrogen loop: the means for making the hydrogen economy realistic
The hydrogen economy has already started with the introduction of the Ovonic nickel metal hydride battery, which has enabled the rapid growth of hybrid vehicles. Reversible storage of hydrogen in a solid hydride permits the entire loop of hydrogen generation, storage and use, all of which have been placed some time in the future. It is often stated that the hydrogen infrastructure does not exist ...
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Combined fuel cell?gas turbine plant for highly efficient power generation from renewable energy sources
The impact of renewable energy sources on today's energy supply substantiates the importance of hydrogen as an energy carrier. Hydrogen can be directly produced from solar energy and is considered a promising technology for temporary storage of electrical energy from wind turbines and photovoltaic systems. The generation of electrical energy from stored hydrogen requires highly efficient systems ...
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