Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Randall Gemmen"'
Autor:
Mark Williams, Randall Gemmen
Publikováno v:
ECS Transactions. 111:1327-1331
The Solid Oxide Fuel Cell (SOFC) Program at the National Energy Technology Laboratory (NETL) managed by the U.S. Department of Energy (DOE) Office of Fossil Energy and Carbon Management (FECM) is currently developing low-cost SOFC and Solid Oxide Ele
Publikováno v:
ECS Meeting Abstracts. :212-212
A high temperature solid oxide electrolysis cell (SOEC) for electrolysis of water is paired with a H-SOEC for hydrogen compression. SOEC and EHC have been integrated into an ECN in a series configuration and then simulated and analyzed. Adding heat a
Autor:
Kirk Gerdes, Lam Helmick, Sridhar Seetharaman, Paul A. Salvador, Gregory S. Rohrer, Randall Gemmen, Shen J. Dillon
Publikováno v:
International Journal of Applied Ceramic Technology. 8:1218-1228
Grain-boundary plane, misorientation angle, grain size, and grain-boundary energy distributions were quantified using electron backscatter diffraction data for dense polycrystalline yttria-stabilized zirconia, to understand interfacial crystallograph
Publikováno v:
Journal of the American Ceramic Society. 87:1981-1987
Chromium-containing stainless steel (SS) is a prospective material for use as an interconnect in solid oxide fuel cells (SOFCs). However, during operations at high temperatures, the growth of oxide scales causes the performance of the interconnect an
Publikováno v:
ECS Meeting Abstracts. :290-290
This brief thermodynamic analysis theoretically explores the performance of an electrolyser for various working reactions (WR). The electrolyser cell (EC) system is composed of an electrolyser and heat engines. The lowest electrical requirement for w
Autor:
Mark C Williams, Randall Gemmen
Publikováno v:
ECS Meeting Abstracts. :308-308
A thermodynamic and electrochemical framework transformed into an electrical network is used to analyze the power output and efficiency of high-temperature, ceramic fuel cell heat engine systems for the hydrogen oxidation reaction. It is interesting
Publikováno v:
Journal of Fuel Cell Science and Technology. 7
This paper presents a relative gain array (RGA) analysis of a simulated solid oxide fuel cell/gas turbine plant, based on a multivariate empirical formulation of a 300 kW hybrid system. The HyPer test facility at the National Energy Technology Labora
Publikováno v:
ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology.
This paper presents a systematic approach to the multivariable robust control of a hybrid fuel cell gas turbine plant. The hybrid configuration under investigation comprises a physical simulation of a 300kW fuel cell coupled to a 120kW auxiliary powe
Publikováno v:
ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology.
This paper examines two coal-based hybrid configurations that employ separated anode and cathode streams for the capture and compression of CO2. One configuration uses a standard Brayton cycle, and the other adds heat recuperation ahead of the fuel c
Publikováno v:
ECS Meeting Abstracts. :968-968
This paper explores the potential of using solid-state electrochemical heat engines operating on reversible redox reactions to continually harvest waste heat from available thermal energy from natural and man-made sources. These systems are electroly