Solid Oxide Fuel Cell Methane

The high temperature also has an advantage: the steam produced by the fuel cell can be channeled into turbines to generate more electricity. But such fuel cells must break methane’s strong C–H bonds, and that generally requires high operating temperatures between 650 and 1,100 °C, which add significantly to a device’s operating costs. SOFCs are around 60% efficient at converting fuel to electricity. This work develops preliminary techno-economic models for a highly-innovative, next generation proton-conducting, anode-supported solid oxide fuel cell (SOFC) that integrates a methane coupling catalyst into the anode. Direct operation of solid oxide fuel cells with methane fuel Y uanbo Lin, Zhongliang Zhan, Jiang Liu, Scott A. So, our group is actively developing on gas separation membrane [1], heterogeneous catalysts for hydrogen production [2], and bio-oil production [3], and also solid oxide fuel cell [4] and intermediate-temperature fuel cell [5] by using a variety of inorganic materials. The methane/steam reforming is the most important hydrogen and syngas production process for industrial scales []. % H 2 O) CH 4 as the fuel at 650 °C, in comparison with Ni-supported cells. 85, the minimum recirculation ratio is found to be 0. In fact, the SOFC has demonstrated the longest operating life of any fuel cell under certain operating conditions. 6 watts per square centimeter. • It is configured like a battery withanode and cathode. Getting the energy they produce is an interesting process. Extra Credit Problem: A solid oxide fuel cell operating at 1000 C and atmospheric pressure uses pure. In this new fuel cell, it’s replenished in the last reaction phase, which forms water that cycles back to react with the methane. 20, 2007 Solid Oxide Fuel Cells (SOFC) High T Fuel Cells Operating principles Overview of Reforming SOFC Brief History Components and Materials SOFC Challenges Architectures: Tubular; Planar Performance. 1 we can understand the conversion of chemical energy to electrical energy. Multi-Physicochemical Modeling of Solid Oxide Fuel Cells and Electrolyzer Cells YUANYUAN XIE University of South Carolina Follow this and additional works at:https://scholarcommons. • 400 Watt stack design and build. Harvey Thayer School of Engineering, Dartmouth College, Hanover, NH 03755-8000. This is particularly of interest as the method could be applied to on-board or domestic systems, were direct internal or external reforming might not be feasible. SOFCR is defined as Solid Oxide Fuel Cell Reactor very rarely. Performance evaluation of solid oxide fuel cell with in-situ methane reforming Tenglong Zhua, Zhibin Yanga, Minfang Hana,b,⇑ a Union Research Center of Fuel Cell, School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China. Then a solar-powered electrolyzer breaks the water into hydrogen and oxygen so that the fuel cell can use it again. The finite volume based solver utilizes density-based method to solve the coupled system of governing equations. The aim of the present research is to characterize catalytic processes occurring on electrodes in the SC SOFC, in the presence of gas mixture composed of oxygen and methane. In this dissertation, solid oxide membrane reactors were fabricated and tested as 1) fuel cells operating directly on ethanol and 2) for the production of ethane and ethylene directly from methane. SOECs can also be used to do electrolysis of CO 2 to produce CO and oxygen or even co-electrolysis of water and CO 2 to produce syngas and oxygen. Several experimental studies reported in. The powerful fuel cell is about the size of a dishwasher, and it's expected to cost 90% less than other units currently on the market. Fundamental experiments were conducted using Ni-YSZ (yttria-stabilized zirconia) cermet as a typical anode material, and Ni-YSZ catalysts having different streamwise lengths were fabricated on YSZ flat plates. Flexible cell dimensions: cells of Ø 8 to Ø 80 mm (or square till 70x70 mm)can be successively installed Quick start of experiment: less than 20 minutes to remount a new cell with different dimension, thanks to the simple design without sealing Other SOFC components: the open flanges test rig is also useful for conductivity measurements (electrolyte,. Hendriksen, 3 J. This paper concerns the stability of anode-supported solid oxide fuel cells (SOFCs), operated with fuel mixtures of methane-CO 2 and methane-air. -The Design of Connection Solid Oxide Fuel Cell (SOFC) Integrated Grid with Three-Phase Inverter. for power plants (300 MW el) or as combined heat and power generation the solid oxide fuel cell (SOFC) is generally preferred. and Shao, Z. NASA has a defined need for energy dense and highly efficient energy storage and power delivery systems for future space missions. 88%, from 2017 to 2025 to reach a market size of 1,140. Among different types of fuel cells, solid oxide fuel cell (SOFC) is particularly suitable because of its flexibility to accept mixed fuel gases in addition to hydrogen, and is considered to be the most efficient and less polluting power generating technology. Indirect internal reforming by partial oxidation was demonstrated as a feasible method of producing syngas to be consumed in a solid oxide fuel cell. The Siemens Westinghouse 25 kW Tubular Solid Oxide Fuel Cell (SOFC) is the first integrated SOFC precommercial prototype and research platform. A Support Layer for Solid Oxide Fuel Cells. Solid Oxide Fuel Cell (SOFC) This classification in fuel cells broadly depends on the type of the electrolyte being used. In August, Franklin Fuel Cell reported a successful test of Solid-Oxide Fuel Cell (SOFC) technology on 16 different types of fuels, including propane, methane, ethanol, natural gas, and diesel. The operation of solid oxide fuel cell systems with the internal steam reforming of methane over supported nickel catalysts is studied. N2 - Solid oxide fuel cells (SOFCs) with thin yttria-stabilized zirconia (YSZ) electrolytes on porous Ni-YSZ anodes were successfully operated with humidified methane and natural gas. SOFCs (solid oxide fuel cell) are a type of hydrogen fuel cell that use solid (not liquid) electrolyte to do their job, while being much more efficient. In this new fuel cell, it’s replenished in the last reaction phase, which forms water that cycles back to react with the methane. Hedayat, Yanhai Du, “ Using Flixweed Seed as a Pore-former to Prepare Porous Ceramics ”, Journal of Material Sciences & Engineering , 5 , 4, 1000255, 2016. Physically mixed LiLaNi-Al2O3 and copper as conductive anode catalysts in a solid oxide fuel cell for methane internal reforming and partial oxidation. Solid oxide fuel cell Partial internal reformation Counter flow design Thermal management abstract We study a counter-flow solid oxide fuel cell system and consider the challenges faced in minimizing thermal variations from the nominal operating conditions for a reasonable range of power tracking. Rather, the efficiency of the fuel cell based power plant can be increased to about 70% when coupled with a gas turbine. : Effect of Anode off-gas Recycling on Reforming of Natural Gas for Solid Oxide Fuel Cell Systems The natural gas used in Finland is of Russian origin and contains a high content of methane (ca. , "Market-ready stationary 6 kW generator with alkaline fuel cells," ECS Transactions 12 (2008) 743-758 d Doosan PureCell Model 400. In order to study the influence of dry methane concentration on outputs in solid oxide fuel cells (SOFCs), the output performance was obtained for dry methane of different concentrations on a Ni-ScSZ anode in solid oxide fuel cells, and the anode exhaust gas was measured by on-line chro-matography. YOKOHAMA, Japan – In Brazil today, Nissan Motor Co. Performance analysis of the solid oxide fuel cell-microgas turbine (SOFC-MGT) hybrid system has been made. , elimination of exhaust-gas recirculation, and a higher open-circuit voltage. Performance evaluation of solid oxide fuel cell with in-situ methane reforming Tenglong Zhua, Zhibin Yanga, Minfang Hana,b,⇑ a Union Research Center of Fuel Cell, School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China. Fueled by methane, the. There are both beneficial effects of reducing stack temperature and detrimental effects. Dimitriou, E. Modeling and Parametric Simulations of Solid Oxide Fuel Cells with Methane Carbon Dioxide Reforming Meng Ni* Building Energy Research Group, Department of Building and Real Estate The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China Abstract: A two-dimensional model is developed to simulate the performance of solid oxide. Benefited by this feature, direct utilization of hydrocarbon fuels without external reformers allows for cost-effective realization of SOFC systems. Solid oxide fuel cells are intended mainly for stationary applications with an output from 1 kW to 2 MW. Methane Fuel Cells Powered Notebooks Close to Becoming a Reality the researchers have published a paper that details a new type of functional all-ceramic thin-film solid-oxide fuel cell (SOFCs. Braun, “Optimal Design and Operation of Solid Oxide Fuel Cell Systems for Distributed Generation,” Research Papers of the Link Foundation Fellows, Vol. The cell exhibited power density of 596 mWcm −2and 381 mWcm at 700 C with wet hydrogen and methane as the fuel respectively, where the silver paste was used as current collectors, the highest performance up to date for the cells with metal oxide anodes at this temperature. : Effect of Anode off-gas Recycling on Reforming of Natural Gas for Solid Oxide Fuel Cell Systems The natural gas used in Finland is of Russian origin and contains a high content of methane (ca. In order to study the influence of dry methane concentration on outputs in solid oxide fuel cells (SOFCs), the output performance was obtained for dry methane of different concentrations on a Ni-ScSZ anode in solid oxide fuel cells, and the anode exhaust gas was measured by online chromatography. Moreover, it can be fabricated using traditional ceramic processing techniques (instead of sputtering, chemical vapor deposition, impregnation, or thermal spraying), and uses much higher metal loadings (40 volume %). The support layer can be used on either the anode or cathode side and allows for. ©2012 The Electrochemical Society. The implementation of solid oxide fuel cells (SOFCs) within gas turbine systems powered by natural gas (methane) requires an intermediate step of methane conversion to a mixture of hydrogen and carbon monoxide. Furthermore, the waste heat generated from the cell can also be used to heat the home, which increases the energy efficiency [13]. GE-FUEL CELLS: THE POWER OF TOMORROW (FC-CC) is a unique combination of a solid oxide fuel cell (SOFC) and a Jenbacher gas-fueled reciprocating engine. 1-supported solid oxide fuel cells are fabricated by tape casting-screen printing-sintering process; and the activity for CH 4 reforming and electrochemical performance are examined with wet (3 vol. The effects of oxygen addition to methane directly supplied to solid oxide fuel cells were investigated. However, the development of Solid-Oxide Fuel Cells (SOFC) is still facing a lot of challenges and a better understanding of the underlying internal steam reforming reaction is needed. Methane fuel cells usually require temperatures of 750 to 1,000°C. The methane/steam reforming is the most important hydrogen and syngas production process for industrial scales []. Solid Oxide Fuel Cells (SOFCs) are a very promising alternative energy source. Thermodynamic modeling and performance of advanced solid oxide fuel cells. University of Maryland researchers have partnered with Redox Power Systems LLC to commercialize low-temperature solid oxide fuel cell (LT-SOFC) technology for distributed generation—and ultimately transportation—applications at about one-tenth the cost and one-tenth the size of current commercial fuel cell systems. The implementation of solid oxide fuel cells (SOFCs) within gas turbine systems powered by natural gas (methane) requires an intermediate step of methane conversion to a mixture of hydrogen and carbon monoxide. Operation of Anode-Supported Solid Oxide Fuel Cells on Methane and Natural Gas Article (PDF Available) in Solid State Ionics 158(1-2):11-16 · February 2003 with 240 Reads How we measure 'reads'. The electrolyte conducts the oxygen ions from cathode to anode. Oxidation of fuel takes place at anode so choice of high. During the operation of fuel cell system 12, an oxidant stream (e. Platinum-free, methane-fueled fuel cells developed By Ben Coxworth. Best Effort Yet To Make Direct Methane Fuel Cell A Reality. (MSRI) - Electrogenerative Cells for Flexible Cogeneration of Power and Liquid Fuel: Oak Ridge National Laboratory (ORNL) - Nanocomposite Electrodes for a Solid Acid Fuel Cell Stack. A new high-efficiency small-scale solid oxide fuel cell system could be a key component for localized power generation, powering anything from entire neighborhoods to individual houses with methane. Bloom Energy Server. In this work, the catalytic performance of Ni supported on ceria doped with Zr, Pr and Nb used as anodes for solid oxide fuel cell (SOFC) operating directly on fuels containing methane and CO 2 was studied. Fuel Cell Technology University of Victoria Department of Mechanical Engineering IESVic Nov. Sobolyeva, R. SOFCs (solid oxide fuel cell) are a type of hydrogen fuel cell that use solid (not liquid) electrolyte to do their job, while being much more efficient. Solid Oxide fuel cells (SOFC) use a hard, ceramic compound of metal (like calcium or zirconium) oxides (chemically, O 2) as electrolyte. Reformer module Gas turbine module (compressor and turbine sub-modules) Combustor module Catalytic oxidizer module Heat exchanger module. , "Market-ready stationary 6 kW generator with alkaline fuel cells," ECS Transactions 12 (2008) 743-758 d Doosan PureCell Model 400. How is Solid Oxide Fuel Cell Reactor abbreviated? SOFCR stands for Solid Oxide Fuel Cell Reactor. 98%) and low amount. Most Solid Oxide Fuel Cells (SOFC) and Solid Oxide Electrolyzers (SOE) are based on electrolytes that are oxygen-ion conductors, which means that SOFC can theoretically operate on any combustible fuel, including methane, other hydrocarbons, and even solid carbon. The exergy analysis of an integrated internal methane reforming - solid oxide fuel cell gas turbine - (IRSOFC—GT) power generation system was performed by Pegah [10]. They work at very high temperatures, typically between 700 and 1,000°C. In order to enhance coke tolerances and durability of SOFCs, La2Sn2O7 nano-powders are prepared by co-precipitation. Process and Energy. Here, an internal reforming layer composed of Ni supported on proton conducting La-doped ceria, such as La2Ce2O7 (LDC) and La1. The operation of Ni–YSZ anode supported SOFCs on methane fuel is described. However, the development of Solid-Oxide Fuel Cells (SOFC) is still facing a lot of challenges and a better understanding of the underlying internal steam reforming reaction is needed. Due to its endothermic nature, the methane/steam reforming process needs a large amount of heat to produce syngas. Researchers developed a low-temperature direct methane fuel cell in 1962, and Andrew M. Solid oxide fuel cells (SOFCs) offer great prospects for the most efficient and cost-effective utilization of hydrocarbons, gasified coal and a wide variety of ample carbonaceous solids (for example, municipal solid waste and biomass)1. Advantages of direct-hydrocarbon operation compared to steam reforming include simplification of the balance of plant, e. Performance analysis of the solid oxide fuel cell-microgas turbine (SOFC-MGT) hybrid system has been made. This work develops preliminary techno-economic models for a highly-innovative, next generation proton-conducting, anode-supported solid oxide fuel cell (SOFC) that integrates a methane coupling catalyst into the anode. • For HT-SOFC operating at fuel utilization ratio of 0. • Electric power generation from different biogas compositions. Multi-Physicochemical Modeling of Solid Oxide Fuel Cells and Electrolyzer Cells YUANYUAN XIE University of South Carolina Follow this and additional works at:https://scholarcommons. 1 Background of Solid Oxide Fuel Cells The high operating temperature of solid oxide fuel cells (SOFCs) o ers advantages and disadvantages compared with low temperature fuel cells such as polymer electrolyte. The high temperature also has an advantage: the steam produced by the fuel cell can be channeled into turbines to generate more electricity. PROBABILISTIC ANALYSIS OF SOLID OXIDE FUEL CELL BASED HYBRID GAS TURBINE SYSTEM Rama S. for power plants (300 MW el) or as combined heat and power generation the solid oxide fuel cell (SOFC) is generally preferred. Solid Oxide Fuel Cells (SOFCs) are a very promising alternative energy source. • The NFCRC is using the 25 kW SOFC system to investigate the emissions and dynamic performance of fuel cells and reformer systems. “The test has pleasantly surprised us. Dam-Johansen 1. Steam Reforming of Methane using Ni-based Monolith Catalyst in Solid Oxide Fuel Cell System Jun Peng, Ying Wang, Qing Zhao, Shuang Ye, Wei Guo Wang Division of Fuel Cell and Energy Technology, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences No. YOKOHAMA, Japan – In Brazil today, Nissan Motor Co. Due to its endothermic nature, the methane/steam reforming process needs a large amount of heat to produce syngas. Several cells are then placed with parallel flow paths and connected thermally and electrically in series. While pure hydrogen remains the ideal choice, problems abound regarding its production, storage, and transport. efficiencies, and fuel flexibility — both of which contribute to better economics. NASA has a defined need for energy dense and highly efficient energy storage and power delivery systems for future space missions. Modeling of Pressurized Electrochemistry and Steam-Methane Reforming in Solid Oxide Fuel Cells and the Effects on Thermal and Electrical Stack Performance KP Recknagle MA Khaleel March 2009 Prepared for the U. Platinum-free, methane-fueled fuel cells developed By Ben Coxworth. High Temperature Solid Oxide Fuel Cells: OCVs (open circuit voltages) in methane3. Both single and dual spool turbo-. The cell exhibited power density of 596 mWcm −2and 381 mWcm at 700 C with wet hydrogen and methane as the fuel respectively, where the silver paste was used as current collectors, the highest performance up to date for the cells with metal oxide anodes at this temperature. Solid Oxide Fuel Cell (SOFC). However, the development of Solid-Oxide Fuel Cells (SOFC) is still facing a lot of challenges and a better understanding of the underlying internal steam reforming reaction is needed. Please cite this article as: A. ©2012 The Electrochemical Society. A micro-tubular solid oxide fuel cell (SOFC) is directly combined with a fuel-rich methane flame in a simple, "no-chamber" setup. AU - Barnett, Scott A. The post-doc fellow will take part in the research of direct methane solid oxide fuel cells. Steven McIntosh, University of Pennsylvania. The electrochemical oxidation of these ions with fuel occurs on the anode side. NGK Insulators Ltd developed a SOFC that uses hydrogen gas as fuel and achieved a lower heating value (LHV) of 63%, one of the highest in the world, also featuring a power output of 700W and an. Direct Internal Reforming (DIR) on Solid Oxide Fuel Cell (SOFC) anodes is often considered for fuel cells systems utilising carbon based fuels. for power plants (300 MW el) or as combined heat and power generation the solid oxide fuel cell (SOFC) is generally preferred. SOFC fuel utilization factor of 79. Unlike those being developed for use in cars, it can. Efficiency is about 60 percent, and operating temperatures are about 1,000 °C (about 1,800 °F). 3855 - 3862. The first part of this dissertation discusses results from a study where solid oxide fuel cells were fabricated with Ni based anodes and operated. Solid oxide fuel cells (SOFCs) are potentially the most efficient technology for direct conversion of hydrocarbons to electricity. Performance and durability of a layered proton conducting solid oxide fuel cell fueled by the dry reforming of methane Youmin Guo, *a Tingting Wan,a Ankang Zhu,a Tingting Shi,a Guilin Zhang,a. IEA Program on R, D&D on combined solid oxide fuel cell and gas turbine systems. Solid Oxide Fuel Cell (SOFC) development and manufacturing technologies. 88%, from 2017 to 2025 to reach a market size of 1,140. A second area of SOFC work has focused on the fabrication of ultra-high surface area electrodes that have embedded electrocatalysts for “low temperature” (i. 3 Million in 2016 and is expected to grow at a CAGR of 13. The fuels used are methane, synthetic gas and hydrogen. Solid oxide fuel cell (SOFC) is a promising power device in scenario of current global environmental issues and increased demand for alternative energy sources. 9Oy anode presented the best catalytic activity and coking resistance in the various NieLaxCe1-xOy catalysts with different ceria contents. Existing methane fuel cells typically require high (750–800°C) temperatures to activate methane in a separate methane reformer that creates hydrogen gas. Multi-Physicochemical Modeling of Solid Oxide Fuel Cells and Electrolyzer Cells YUANYUAN XIE University of South Carolina Follow this and additional works at:https://scholarcommons. Solid-oxide fuel cells (SOFCs) promise high efficiencies in a range of fuels. resistances are about 15 times less than previously achieved without 6. Any CO in the reformate gas is oxidized to CO 2 at the anode. 85%, an ethanol conversion of 100%, water to ethanol ratio 3:1 and no energy integration was developed. It is also important for fuel cell technology to achieve efficient electrode operation with different hydrocarbon fuels 3,4, although such fuels are more demanding than pure hydrogen. The intermediate temperature range for a Solid Oxide Fuel Cell (SOFC) can be arbitrarily defined as 550* C to 800* C. Rather, the efficiency of the fuel cell based power plant can be increased to about 70% when coupled with a gas turbine. A 1D solid oxide fuel cell model is created by integrating the electrolyte model and a 1D fuel flow model, which includes dynamic internal steam reforming of methane and water-gas shift reactions. SOLID OXIDE PLANAR AND TUBULAR SOLID OXIDE FUEL CELLS Dynamic Simulation Approach Modular Approach: Individual simulation modules for each fuel cell type • Tubular SOFC • Planar SOFC • MCFC • PEM. , in the form of air 24 as labelled in FIG. PY - 2003/2/1. A diagram of this cell is shown here. A solid oxide electrolyser cell (SOEC) is a solid oxide fuel cell set in regenerative mode for the electrolysis of water with a solid oxide, or ceramic, electrolyte to produce oxygen and hydrogen gas. New small solid oxide fuel cell reaches record efficiency. However, anode coking for the Ni-based anode should be prevented before the technology becomes a reality. The kinetics of catalytic steam reforming of methane over an Ni-YSZ anode of a solid oxide fuel cell (SOFC) have been investigated with the cell placed in a stack configuration. Experiments were conducted using a model SOFC consisting of an electrolyte disk of yttria-stabilized zirconia with thin films of samaria-doped ceria as both the. An integrated high pressure and high temperature solid oxide fuel cell (SOFC) and steam methane reformer (SMR) system is analyzed for this application and the recoverable amount of methane from deep ocean sediments is measured. Physically mixed LiLaNi-Al2O3 and copper as conductive anode catalysts in a solid oxide fuel cell for methane internal reforming and partial oxidation. 1 Background of Solid Oxide Fuel Cells The high operating temperature of solid oxide fuel cells (SOFCs) o ers advantages and disadvantages compared with low temperature fuel cells such as polymer electrolyte. The potential for these fuel cells is immense and they promise to be an important alternative energy source for a less oil dependant future. and Farrusseng, D. Rather, the efficiency of the fuel cell based power plant can be increased to about 70% when coupled with a gas turbine. Georgia Tech Research Corporation - Fuel Cell Tailored for Efficient Utilization of Methane: Materials & Systems Research, Inc. Methane fuel cells usually require temperatures of 750 to 1,000°C. Yentekakis, Grammatiki Goula. Solid oxide fuel cells (SOFCs) offer great prospects for the most efficient and cost-effective utilization of hydrocarbons, gasified coal and a wide variety of ample carbonaceous solids (for example, municipal solid waste and biomass)1. Methane Steam Reforming (MSR) is one of the most extensively studied types of DIR. Performance analysis of the solid oxide fuel cell-microgas turbine (SOFC-MGT) hybrid system has been made. thesis, Lund Uinversity; 2002. (mentor) Faculty. It is also important for fuel cell technology to achieve efficient electrode operation with different hydrocarbon fuels 3,4 , although such fuels are more demanding than pure hydrogen. Overview Methane Ethane Diesel Gasoline Coal gas. Solid Oxide Fuel Cells S olid oxide fuel cells (SOFCs) offer a clean, low-pollution technology to electrochemically generate electricity at high efficiencies; since their efficiencies are not limited by the Carnot cycle of a heat engine. Here a multi-physics model is established for the relevant experimental cells. Several cells are then placed with parallel flow paths and connected thermally and electrically in series. A special type of fuel cell, the solid-oxide fuel cell (SOFC), may be able to raise efficiency to 85-90%. Superior hydrocarbon reforming catalysts such as nickel are required for this application. These fundamental properties are quite important in the design of high temperature SOEC devices, such as solid oxide fuel cells and gas sensors, but are inherently difficult to measure. This is distinct from internal reforming because the hydrocarbon fuel is introduced without a substantial amount of H 2 O, CO 2, or O 2. Harvey Thayer School of Engineering, Dartmouth College, Hanover, NH 03755-8000. Development of direct hydrocarbon solid oxide fuel cells. This process allows Bloom to create reliable, resilient, sus tainable energy at lower and predictable costs. Global sales of solid oxide fuel cells (SOFCs) will grow at a 22. A characterization of a microtubular-type Solid Oxide Fuel Cell (SOFC) has been performed using an electrochemical approach. Gorla Cleveland State University Cleveland, Ohio 44115 Shantaram S. However, most natural gas combustion-based power plants currently operate at efficiencies in the low 30%. Optical studies of nanostructures and solid oxide fuel cells Thursday, May 22, 2014 - 8:00pm Steady-state and transient spectroscopic studies are described for plasmonic metal nanorods, gold nanoantenna arrays and atomic layer deposition (ALD) silver films. The Bloom Energy Server ® uses solid oxide fuel cells to produce electricity without combustion. Janardhanan and Olaf Deutschmann. 519 Zhuangshi Road, Zhenhai District. Single-chamber solid oxide fuel cells (SC SOFC) are one of the possible devices enabling direct conversion of methane to electricity. The design and dimensioning of the digester is conducted in relation to the technological and biological parameters of the reactor. November 25, 2010 Facebook; “If you can realize high-performance solid-oxide fuel cells that operate in the 300 C (572 F. Rather, the efficiency of the fuel cell based power plant can be increased to about 70% when coupled with a gas turbine. 1-3 These fuel cells provide many advantages over traditional energy conversion systems. AU - Liu, Jiang. Extra Credit Problem: A solid oxide fuel cell operating at 1000 C and atmospheric pressure uses pure. edu) have developed a solid oxide fuel cell (SOFC) design that eliminates the need for a methane. SOLID OXIDE FUEL CELL (SOFC) WITH CU-CERIA ANODE RUNNING ON METHANE OR BIOGAS MIXTURES: THERMODYNAMIC ANALYSIS* Aline Lima da Silva1. A number of different fuel cells have been under development for stationary, transport and portable power applications. Superior hydrocarbon reforming catalysts such as nickel are required for this application. efficiencies, and fuel flexibility — both of which contribute to better economics. There have been recent successes with solid oxide fuel cells (SOFCs), which perform well between 823 and 973 K using methane and n-butane directly as the fuels. There has been considerable recent interest in the operation of solid oxide fuel cells (SOFCs) directly on hydrocarbon or alcohol fuels. Single-chamber solid oxide fuel cells (SC SOFC) are one of the possible devices enabling direct conversion of methane to electricity. “The test has pleasantly surprised us. Physically mixed LiLaNi-Al2O3 and copper as conductive anode catalysts in a solid oxide fuel cell for methane internal reforming and partial oxidation. Disruption of extended defects in solid oxide fuel cell anodes for methane oxidation. Existing methane fuel cells typically require high (750–800°C) temperatures to activate methane in a separate methane reformer that creates hydrogen gas. A process flow sheet was developed to understand the steps required to. Annex II: modelling and evaluation of [18] Palsson J. The electrochemical oxidation of these ions with fuel occurs on the anode side. New small solid oxide fuel cell reaches record efficiency 31 May 2012 Pacific Northwest National Laboratory developed this highly efficient, small-scale solid oxide fuel cell system. MSc Sustainable Energy Technology. Commercial application of these devices, however, requires further improvements in their performance and stability. The present work is focused on the possibility of achieving an integrated system by adopting solid oxide fuel cell systems fed by the biogas produced by an anaerobic digestion system. Compared to other fuel cell technologies, solid oxide fuel cell (SOFC) based systems are better suited to meeting NASA's efficiency targets while operating directly on methane and oxygen reactants. Physically mixed LiLaNi-Al2O3 and copper as conductive anode catalysts in a solid oxide fuel cell for methane internal reforming and partial oxidation. Recycling and reusing of exhaust gas from solid oxide fuel cell (SOFC) could enhance the fuel utilization of methane. The first part of this dissertation discusses results from a study where solid oxide fuel cells were fabricated with Ni based anodes and operated. Then a solar-powered electrolyzer breaks the water into hydrogen and oxygen so that the fuel cell can use it again. Solid Oxide Fuel Cells S olid oxide fuel cells (SOFCs) offer a clean, low-pollution technology to electrochemically generate electricity at high efficiencies; since their efficiencies are not limited by the Carnot cycle of a heat engine. High operating temperatures also allow solid oxide fuel cells to run on methane, propane, butane, or other standard fuels including diesel and make this form of fuel cell more suitable to use in harsh environments. The kinetics of catalytic steam reforming of methane over an Ni-YSZ anode of a solid oxide fuel cell (SOFC) have been investigated with the cell placed in a stack configuration. 2011 ; Vol. The material demonstrates impressive fuel cell performance using wet hydrogen at 950 °C. Department of Energy's (DOE) advanced fuel cell research program, which is managed by DOE's Office of. The research seeks to create a fuel cell that would both produce electricity and convert methane gas to ethane or ethylene that could then be converted to a liquid fuel or valuable chemicals. The table below lists characteristics of these various fuel cell approaches. Getting the energy they produce is an interesting process. Commercial application of these devices, however, requires further improvements in their performance and stability. This means the electricity they produce doesn't have to be sent as far. Direct flame fuel cells (DFFCs) have been investigated as an alternative means of combustion based power generation devices, but current challenges for this technology have included low fuel utilization and efficiency. Accepted Manuscript. : Effect of Anode off-gas Recycling on Reforming of Natural Gas for Solid Oxide Fuel Cell Systems The natural gas used in Finland is of Russian origin and contains a high content of methane (ca. Of particular interest are those technologies that address challenges common to both fuel cells fed by oxygen and methane and electrolyzers fed by carbon dioxide and/or water. Composition of the fuel mixture in the anode channel greatly affects the performance of the fuel cell. Edgar Abstract—Extending fuel cell lifetime is a necessary objective for reducing fuel cell power generation cost of electricity. Janardhanan and Olaf Deutschmann. Here, we describe a solid oxide fuel cell that combines a catalyst layer with a conventional anode, allowing internal reforming of iso -octane without coking and yielding stable power densities of 0. Gorla Cleveland State University Cleveland, Ohio 44115 Shantaram S. Electromotive forces of ;900 millivolts were generated from the cell in a ßowing mixture of ethane or propane and air, where the solid electrolyte functioned as a purely ionic conductor. Fuel sources are categorized into two types, Model Predictive Control with a Rigorous Model of a Solid Oxide Fuel Cell Lee T. A novel micro-solid oxide fuel cell (µ-SOFC), with a rectangular saw-tooth shape, was designed with a 50 wt% BYCF +50 wt% GDC10 cathode and a 60 wt% NiO +40 wt% GDC10 anode deposited on a GDC10 electrolyte substrate by the spray pyrolysis technique. These fundamental properties are quite important in the design of high temperature SOEC devices, such as solid oxide fuel cells and gas sensors, but are inherently difficult to measure. Fundamental experiments were conducted using Ni-YSZ (yttria-stabilized zirconia) cermet as a typical anode material, and Ni-YSZ catalysts having different streamwise lengths were fabricated on YSZ flat plates. Toward highly efficient: in situ dry reforming of H2S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer. These cells could use natural gas—which is mostly made up of methane—directly. Department. The system that is simulated represents the 220 kW SOFC/GT hybrid system developed by Siemens Westinghouse. / A new Gd-promoted nickel catalyst for methane conversion to syngas and as an anode functional layer in a solid oxide fuel cell. The cell exhibited power density of 596 mWcm −2and 381 mWcm at 700 C with wet hydrogen and methane as the fuel respectively, where the silver paste was used as current collectors, the highest performance up to date for the cells with metal oxide anodes at this temperature. In this study the performance of CeO{sub 2} and Rh supported on CeO{sub 2} as anodes in solid oxide fuel cells (SOFC) was investigated. Solid oxide fuel cells (SOFCs) often operate at high temperatures which contributes to a higher efficiency and power density as compared to other types of fuel cells. Modeling and Parametric Simulations of Solid Oxide Fuel Cells with Methane Carbon Dioxide Reforming Meng Ni* Building Energy Research Group, Department of Building and Real Estate The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China Abstract: A two-dimensional model is developed to simulate the performance of solid oxide. SOECs can also be used to do electrolysis of CO 2 to produce CO and oxygen or even co-electrolysis of water and CO 2 to produce syngas and oxygen. The present work is focused on the possibility of achieving an integrated system by adopting solid oxide fuel cell systems fed by the biogas produced by an anaerobic digestion system. solid oxide fuel cells by infiltration Aleksander Chrzan, Simona Ovtar and Ming Chen-Three dimensional CFD modeling and experimental validation of a single chamber solid oxide fuel cell fed by methane H T Nguyen, M V Le, T A Nguyen et al. During the operation of fuel cell system 12, an oxidant stream (e. Fuel Cell Technology University of Victoria Department of Mechanical Engineering IESVic Nov. Edgar Abstract—Extending fuel cell lifetime is a necessary objective for reducing fuel cell power generation cost of electricity. Several cells are then placed with parallel flow paths and connected thermally and electrically in series. The Siemens Westinghouse 25 kW Tubular Solid Oxide Fuel Cell (SOFC) is the first integrated SOFC precommercial prototype and research platform. Sobolyeva, R. the fabrication of mechanically robust, impregnated electrodes. Coconut pomace, rice straw, bagasse together with concentrated sludge is fed to a digester to produce biogas, which is used as fuel to generate electricity with a solid oxide fuel cell (SOFC) system having double the efficiency of conventional heat engine systems. 3 Million in 2016 and is expected to grow at a CAGR of 13. 27 W/cm2 at 800 °C were observed. The operation of Ni–YSZ anode supported SOFCs on methane fuel is described. SOFC systems provide efficient, environmentally friendly, highly reliable, renewable energy conversion. An Australian company, Ceramic Fuel Cells Ltd, is commercially developing highly efficient solid-oxide fuel cells (also known as ceramic fuel cells). • For HT-SOFC operating at fuel utilization ratio of 0. Methane Steam Reforming (MSR) is one of the most extensively studied types of DIR. Progress in Solid Oxide Fuel Cells with Nickel-Based Anodes Operating on Methane and Related Fuels Wei Wang † , Chao Su ‡ , Yuzhou Wu § , Ran Ran † , and Zongping Shao * † † State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology , No. • 400 Watt stack design and build. Direct operation of solid oxide fuel cells with methane fuel. Solid oxide fuel cell (SOFC) is an electrochemical device, based on an oxide ion conducting electrolyte, which converts chemical energy of a fuel (such as hydrogen or a hydrocarbon) into electricity at temperatures from about 550 to 1000oC. This is particularly of interest as the method could be applied to on-board or domestic systems, were direct internal or external reforming might not be feasible. Author(s) Yuanyuan Xie Hanping Ding. Understanding and overcoming carbon deposition is crucial for the technology development. Nanocomposites Samarium doped Ceria (SDC), Gadolinium doped Ceria (GDC), core shell SDC amorphous Na2CO3 (SDCC) and GDC amorphous Na2CO3 (GDCC) were synthesized using co-precipitation method and then compared to obtain better solid oxide electrolytes materials for low temperature Solid Oxide Fuel Cell (SOFCs). Direct Internal Methane Steam Reforming in Operating Solid Oxide Fuel Cells A kinetic modelling approach Lindert van Biert4044452 4th of December 2014 Specialization Energy Technology, Faculty of Mechanical, Maritime, and Materials Engineering. Solid oxide fuel cells (SOFC) have been studied extensively for a broad spectrum of electrical power generation applications because of their clean and efficient electrical energy production. based upon the material of electrolyte. On-cell methane (CH 4) reforming in Ni-based anodes is an attractive option for directly using CH 4-based fuels for solid oxide fuel cells (SOFCs) with high fuel efficiency and simplified system design 1,2. Extra Credit Problem: A solid oxide fuel cell operating at 1000 C and atmospheric pressure uses pure. Operation of solid oxide fuel cells with alternative hydrogen carriers Research output : Contribution to journal › Journal article – Annual report year: 2019 › Research › peer-review Power-to-methane via co-electrolysis of H 2 O and CO 2 : The effects of pressurized operation and internal methanation. Disruption of extended defects in solid oxide fuel cell anodes for methane oxidation. While their commercial viability is greatest at operating. Direct CH4-fueled solid oxide fuel cells (SOFCs) have been studied for a few decades, but carbon depositions on the Ni-based anodes are still remained as a major problem. The operation of solid oxide fuel cell systems with the internal steam reforming of methane over supported nickel catalysts is studied. 07 for the fuel as methane and the selected syngas, respectively. A process flow sheet was developed to understand the steps required to. Comparison of the exergy efficiency of four power generation systems from methane using fuel cells Zhe Wang, *a Weiyu Fanb and Guangqing Zhangc Exergy analyses are carried out on four different solid oxide fuel cell (SOFC) systems using methane as the. Direct methane solid oxide fuel cells based on catalytic partial oxidation enabling complete coking tolerance of Ni-based anodes. These polarization Fundamentals, Design and Applications (Elsevier, Oxford, 2004). 9Oy anode presented the best catalytic activity and coking resistance in the various NieLaxCe1-xOy catalysts with different ceria contents. air) gases across an ionic conducting oxide at operating temperatures of ~800°C [1, 2]. T1 - Operation of anode-supported solid oxide fuel cells on methane and natural gas. While pure hydrogen remains the ideal choice, problems abound regarding its production, storage, and transport. Solid Oxide Fuel Cells (SOFCs) with electrical efficiencies above 50 % are considered as very promising option for future decentralized energy conversion. Solid oxide fuel cells (SOFCs) are one type of fuel cell being developed at Forschungszentrum Jülich's Institute of Energy and Climate Research in an interdisciplinary approach. for power plants (300 MW el) or as combined heat and power generation the solid oxide fuel cell (SOFC) is generally preferred. Solid Oxide fuel cells (SOFC’s) is a device that is used to convert chemical energy from a fuel, such as hydrogen or methane, into electricity through electrochemical reactions. Solid oxide fuel cell (SOFC) is an electrochemical device, based on an oxide ion conducting electrolyte, which converts chemical energy of a fuel (such as hydrogen or a hydrocarbon) into electricity at temperatures from about 550 to 1000oC. Like all fuel cells, it produces power through electrochemical reactions. These cells could use natural gas—which is mostly made up of methane—directly. Y1 - 2003/2/1. Several experimental studies reported in. Elcogen provided SOFC single cells to the system.