solid oxide fuel cell Articles
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Consumption analysis of Solid Oxide Fuel Cells
The characteristics of the Solid Oxide Fuel Cell (SOFC) were introduced. The SOFC system can be divided into ten sections based on the Second Law of Thermodynamics. The fuel specific consumption was taken as the primary indicator to investigate the specific consumption for each section. The Energy-flow Framework Diagram (EFD) was undertaken to modify the system, such as controlling the operating ...
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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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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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Exergy analysis of an integrated two–stage biomass gasifier and Solid Oxide Fuel Cell system
In this study, an exergy analysis is applied to a conceptual integrated two–stage biomass gasifier and Solid Oxide Fuel Cell (SOFC) system. Several simulations are conducted to assess the effect of some key input parameters on the exergy ratios of the components and the exergy efficiency of the system. The results show that the exergy efficiency of the integrated system varies between 11.6% and ...
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Exergy analysis of a combined fuel cell and Gas Turbine Power Plant with intercooling and reheating
This paper presents a comparative exergy study of the performance of various gas turbine power generation plants and a high temperature Solid Oxide Fuel Cell (SOFC). The overall system is analysed and its exergy efficiency and exergy destruction are obtained, as well as individual models of each component. The results for selected operating conditions are compared against past literature data. ...
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Exergy and industrial ecology: an application to an integrated energy system
Exergy analysis can help integrate separate technologies following the principles of industrial ecology. An application of exergy analysis to calculate depletion numbers, which relate exergy destruction and total exergy use, is demonstrated for a gas turbine cycle combined with a hydrogen generation unit. The design includes a Solid Oxide Fuel Cell (SOFC) with internal natural gas reforming and a ...
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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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Exergy analysis of gas turbine – solid oxide fuel cell–based combined cycle power plant
Fuel cell technology is one of the promising systems for cleaner and competitive alternate power generation systems. When the high temperature fuel cells like solid oxide fuel cell and molten carbon fuel cell are integrated with the gas turbines, the total thermal efficiency of the combined cycle can be obtained greater than 60%. In the present work, thermodynamic analysis of SOFC–GT combined ...
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Greenhouse gas emissions of fossil fuel-fired power plants: current status and reduction potentials, case study of Iran and Canada
In this paper, methodology to estimate GHG emissions from electricity generation sector using Iran as an example was first explained. Then different scenarios to reduce GHG emissions were evaluated for two countries: Canada and Iran. The results demonstrated that there were great potentials for GHG emission reduction in both countries. These potentials were evaluated by introducing eight ...
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Exergy analysis of an integrated two-stage biomass gasifier and Solid Oxide Fuel Cell system
In this study, an exergy analysis is applied to a conceptual integrated two-stage biomass gasifier and Solid Oxide Fuel Cell (SOFC) system. Several simulations are conducted to assess the effect of some key input parameters on the exergy ratios of the components and the exergy efficiency of the system. The results show that the exergy efficiency of the integrated system varies between 11.6% and ...
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Combined cycles for CO2-capture with high efficiency
The presented paper gives an overview on combined cycles for CO2-capture with high efficiency focussed on processes using a Solid Oxide Fuel Cell (SOFC), because of the air separating ability of the SOFC-membrane. The SOFC-membrane is only permeable for oxygen ions, so the cathode exhaust gas is oxygen depleted air, which should be discharged to the atmosphere after recycling or using the heat ...
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Solar powered solid oxide fuel cell with thermoelectric generator
Durable, location independent, environmental–friendly sources of energy which allow for modular, few moving parts, low operating noise, high electricity generation efficiency and compact technology are highly desirable. Solid oxide fuel cells (SOFCs) are promising for such energy system development, since they are energy efficient and, if pure hydrogen is used, have virtually no emissions of ...
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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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Oscillating syngas production on NiO/YSZ catalyst from methane oxidation
Introduction Nickel oxide/yttrium-stabilized zirconia (NiO/YSZ) is a state-of-the-art anode used in solid oxide fuel cells (SOFCs). Despite its excellent electrochemical activity in hydrogen fuel cells, there are barriers to the storage of hydrogen, which have stimulated interest in the investigation of chemical reactions on NiO/YSZ involving methane, a major component of natural gas. Many ...
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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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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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Do not overlook your business’ intellectual assets
Intellectual property (IP) plays a vital role in all industries, from manufacturing processes to commercial products, phones to pharmaceuticals and everything in between. And the waste management field is no exception—especially as more environmentally-friendly and more efficient means of waste disposal are invented. In almost every business—even those that are thought of as ...
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CalBio and Bloom Energy to Generate Renewable Electricity From Dairy Waste
On-Site Power Solution Will Dramatically Reduce Methane Emissions from Dairies by Using Captured Biogas to Generate Electricity without Combustion State Programs Enable Renewable Electricity Generated by Dairies to Power Electric Vehicles throughout California Bloom Energy (NYSE: BE) and California Bioenergy LLC (CalBio), today announced a collaboration to deploy the companies’ ...
By Bloom Energy
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Fuel Cells Can Decarbonize California’s Buildings (While Keeping the Lights On)
California just faced historic blackouts. In fact, it endured three of the largest planned power outages in state history. The era of intentionally cutting off power to residents and businesses across the state to prevent wildfires – known as Public Safety Power Shutoffs (PSPS) – has arrived, and it’s highlighting the urgent need for energy solutions that address both the causes ...
By Bloom Energy
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Fuel cell-powered data centers
Data centers are becoming a vital component of today’s digital technology-driven world. From cloud computing to communications to finance, many industries depend on data centers. They centralize services for the storage, management, and transmission of data. Offering these services 24/7, 365 days a year requires a lot of energy. According to Data Center Knowledge, 2% of our nation’s ...
By AKCP
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