The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Subhash C Singhal - One of the best experts on this subject based on the ideXlab platform.
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cathode supported tubular solid oxide Fuel Cell Technology a critical review
Journal of Power Sources, 2013Co-Authors: Kevin Huang, Subhash C SinghalAbstract:Abstract Over the past half-century, Siemens/Westinghouse systematically developed the cathode-supported tubular solid oxide Fuel Cell (SOFC) Technology and demonstrated the world's first highly efficient, longest running 100-kWe class solid oxide Fuel Cell/combined heat and power (SOFC/CHP) system and the first highest-efficiency, 220-kWe class pressurized SOFC/gas turbine (PSOFC/GT) hybrid system based on this Technology. This review provides a broad overview on this Technology from the perspectives of materials, manufacturing, Cell design, system integration and electrical testing. It starts from the basic facts of a SOFC, where the working principle, advantages, types and applications of SOFCs are discussed. It then focuses on cathode-supported tubular SOFCs, one important type of SOFC design, by providing detailed technical information on engineering innovations, materials advances, manufacturing processes and electrical performance of Siemens/Westinghouse's cylindrical and flattened ribbed tubular Cells. The review concludes with a high-level summary of the SOFC systems manufactured and demonstrated by Siemens/Westinghouse in the past few decades.
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advances in solid oxide Fuel Cell Technology
Solid State Ionics, 2000Co-Authors: Subhash C SinghalAbstract:High temperature solid oxide Fuel Cells (SOFCs) offer a clean, pollution-free Technology to electrochemically generate electricity at high efficiencies. These Fuel Cells provide many advantages over traditional energy conversion systems including high efficiency, reliability, modularity, Fuel adaptability, and very low levels of NOx and SOx emissions. Furthermore, because of their high temperature of operation (∼1000°C), natural gas Fuel can be reformed within the Cell stack eliminating the need for an expensive, external reformer. Also, pressurized SOFCs can be successfully used as replacements for combustors in gas turbines; such hybrid SOFC–gas turbine power systems are expected to reach efficiencies over 70%. This paper reviews the materials and fabrication methods used for the different Cell components, and discusses the performance of Cells fabricated using these materials; it also discusses the materials and processing studies that are under investigation to reduce the Cell cost. Finally, the paper summarizes the recently built power generation systems that employed state-of-the-art SOFCs. A new design SOFC that combines the seal-less feature of tubular Cells and a flattened air electrode with integral ribs is also described; this new design has a shortened current path and hence lower Cell resistance and higher power output than tubular Cells.
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recent progress in tubular solid oxide Fuel Cell Technology
5. international symposium on solid oxide fuel cells Aachen (Germany) 2-5 Jun 1997, 1997Co-Authors: Subhash C SinghalAbstract:The tubular design of solid oxide Fuel Cells (SOFCs) and the materials used therein have been validated by successful, continuous electrical testing over 69,000 h of early Technology Cells built on a calcia-stabilized zirconia porous support tube (PST). In the latest Technology Cells, the PST has been eliminated and replaced by a doped lanthanum manganite air electrode tube. These air electrode supported (AES) Cells have shown a power density increase of about 33% with a significantly improved performance stability over the previously used PST type Cells. These Cells have also demonstrated the ability to thermally cycle over 100 times without any mechanical damage or performance loss. In addition, recent changes in processes used to fabricate these Cells have resulted in significant cost reduction. This paper reviews the fabrication and performance of the state-of-the-art AES tubular Cells. It also describes the materials and processing studies that are underway to further reduce the Cell cost, and summarizes the recently built power generation systems that employed state-of-the-art AES Cells.
Shuyuan Wang - One of the best experts on this subject based on the ideXlab platform.
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A promising direct carbon Fuel Cell based on the cathode-supported tubular solid oxide Fuel Cell Technology
Electrochimica Acta, 2012Co-Authors: Jianhua Zhou, L.m. Shao, Xinxi Zhang, Jiqin Qian, Shuyuan WangAbstract:Abstract A novel direct carbon Fuel Cell is designed and fabricated using cathode-supported tubular solid oxide Fuel Cell Technology, which makes the research and optimization of Fuel electrode much easier. The maximum power density of a SO-DCFC (solid oxide direct carbon Fuel Cell) single Cell is 172.7 and 91.1 mW cm−2 at 900 and 850 °C, respectively, with carbon as the Fuel humidified nitrogen to initiate reforming reactions. Results show that the cathode supported tubular design may have future promise.
Jianhua Zhou - One of the best experts on this subject based on the ideXlab platform.
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A promising direct carbon Fuel Cell based on the cathode-supported tubular solid oxide Fuel Cell Technology
Electrochimica Acta, 2012Co-Authors: Jianhua Zhou, L.m. Shao, Xinxi Zhang, Jiqin Qian, Shuyuan WangAbstract:Abstract A novel direct carbon Fuel Cell is designed and fabricated using cathode-supported tubular solid oxide Fuel Cell Technology, which makes the research and optimization of Fuel electrode much easier. The maximum power density of a SO-DCFC (solid oxide direct carbon Fuel Cell) single Cell is 172.7 and 91.1 mW cm−2 at 900 and 850 °C, respectively, with carbon as the Fuel humidified nitrogen to initiate reforming reactions. Results show that the cathode supported tubular design may have future promise.
Kevin Huang - One of the best experts on this subject based on the ideXlab platform.
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cathode supported tubular solid oxide Fuel Cell Technology a critical review
Journal of Power Sources, 2013Co-Authors: Kevin Huang, Subhash C SinghalAbstract:Abstract Over the past half-century, Siemens/Westinghouse systematically developed the cathode-supported tubular solid oxide Fuel Cell (SOFC) Technology and demonstrated the world's first highly efficient, longest running 100-kWe class solid oxide Fuel Cell/combined heat and power (SOFC/CHP) system and the first highest-efficiency, 220-kWe class pressurized SOFC/gas turbine (PSOFC/GT) hybrid system based on this Technology. This review provides a broad overview on this Technology from the perspectives of materials, manufacturing, Cell design, system integration and electrical testing. It starts from the basic facts of a SOFC, where the working principle, advantages, types and applications of SOFCs are discussed. It then focuses on cathode-supported tubular SOFCs, one important type of SOFC design, by providing detailed technical information on engineering innovations, materials advances, manufacturing processes and electrical performance of Siemens/Westinghouse's cylindrical and flattened ribbed tubular Cells. The review concludes with a high-level summary of the SOFC systems manufactured and demonstrated by Siemens/Westinghouse in the past few decades.
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solid oxide Fuel Cell Technology principles performance and operations
2009Co-Authors: Kevin Huang, John B GoodenoughAbstract:Introduction to solid oxide Fuel Cells (SOFCs) Thermodynamics of the solid oxide Fuel Cell (SOFC) Electronic properties of solids for solid oxide Fuel Cells (SOFCs) Transport of charged particles in a solid oxide Fuel Cell (SOFC) Oxide-ion electrolytes in solid oxide Fuel Cells (SOFCs) Current, gas flow, utilization, and energy balance in a solid oxide Fuel Cell (SOFC) Voltage losses in a solid oxide Fuel Cell (SOFC) Direct current (DC) electrical efficiency and power of a solid oxide Fuel Cell (SOFC) Performance characterization techniques for a solid oxide Fuel Cells (SOFC) and its components Steam methane reforming and carbon formation in solid oxide Fuel Cells (SOFCs) Poisoning of solid oxide Fuel Cell (SOFC) electrodes Materials for solid oxide Fuel Cells (SOFCs).
Jiqin Qian - One of the best experts on this subject based on the ideXlab platform.
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A promising direct carbon Fuel Cell based on the cathode-supported tubular solid oxide Fuel Cell Technology
Electrochimica Acta, 2012Co-Authors: Jianhua Zhou, L.m. Shao, Xinxi Zhang, Jiqin Qian, Shuyuan WangAbstract:Abstract A novel direct carbon Fuel Cell is designed and fabricated using cathode-supported tubular solid oxide Fuel Cell Technology, which makes the research and optimization of Fuel electrode much easier. The maximum power density of a SO-DCFC (solid oxide direct carbon Fuel Cell) single Cell is 172.7 and 91.1 mW cm−2 at 900 and 850 °C, respectively, with carbon as the Fuel humidified nitrogen to initiate reforming reactions. Results show that the cathode supported tubular design may have future promise.
