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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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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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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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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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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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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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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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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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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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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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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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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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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Exergoeconomic based multi–objective optimisation of a solid oxide fuel cell system
In this study, the multi–objective optimisation of a solid oxide fuel cell (SOFC) system by defining the objective functions to maximise the power output, energy efficiency and exergy efficiency, and minimise the cost under various constraints is conducted. In this regard, energy, exergy and exergoeconomic analyses are performed. Some specific cases are considered and studied parametrically by ...
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Thermodynamic performance simulation of a coal gasification and SOFC based combined cogeneration plant by energy and exergy analyses
This paper presents a thermodynamic model of a combined cogeneration plant that employs a coal gasifier, a gas cooler and a solid oxide fuel cell (SOFC) upstream of the gas turbine and a downstream HRSG to generate process steam at low pressure. Simulated performance of the plant with respect to variations in some design and operating parameters has been reported. While energy analysis indicates ...
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Reliable Backup Power Recovers Significant Income from Lost Bank ATM Transactions
In many locations a stable power grid is taken for granted. But there are still many places around the globe where power outages can cause significant interruptions to business operations, disruptions that can have serious financial implications. In these places, reliable backup power can be extremely valuable. One location where ATM operation is regularly interrupted is in the Philippines, a ...
By GenCell Ltd
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Designing a sustainable hydrogen energy economy
A general vision of a sustainable energy economy relying substantially on hydrogen produced from renewables is sketched as a potential solution to the twin global crises of climate change and depleting oil reserves. Core differences between this 'sustainable hydrogen economy' (SHE) and the original hydrogen economy (HE) proposed in the early 1970s are discussed. In transport, rather than posing a ...
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The Big Deal With FUEL CELLS
Hydrogen is increasingly seen as a fuel of the future. Globally, more than 65,000 fuel cells, totaling over 300 MW, were shipped worldwide in 2016. Introduction The third industrial revolution, according to American economic and social theorist Jeremy Rifkin, will create a prosperous economy powered by clean energy and the Internet of Things. Hydrogen will be leveraged as one of the critical ...
By GenCell Ltd
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