Development of Solid Oxide Fuel Cell Power Systems for Underwater Applications

2019 ◽  
Vol 12 (1) ◽  
pp. 707-711 ◽  
Author(s):  
Hossein Ghezel-Ayagh ◽  
Sven T. Junker ◽  
Jonathan A. Peters ◽  
Timothy F. Miller ◽  
Jay D. Martin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Power Systems ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel

Exergy Analysis of a Solid-Oxide Fuel Cell, Gas Turbine, Steam Turbine Triple-Cycle Power Plant

2012 ◽  
Author(s):  
Rebecca Z. Pass ◽  
Chris F. Edwards
Keyword(s):  
Fuel Cell ◽  
Power Systems ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Exergy Analysis ◽  
Combined Cycle ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Starting Point ◽  
Natural Gas Combined Cycle

In an effort to make higher efficiency power systems, several joint fuel cell / combustion-based cycles have been proposed and modeled. Mitsubishi Heavy Industries has recently built such a system with a solid-oxide fuel cell gas turbine plant, and is now working on a variant that includes a bottoming steam cycle. They report their double and triple cycles have LHV efficiencies greater than 52% and 70%, respectively. In order to provide insight into the thermodynamics behind such efficiencies, this study attempts to reverse engineer the Mitsubishi Heavy Industries system from publicly available data. The information learned provides the starting point for a computer model of the triple cycle. An exergy analysis is used to compare the triple cycle to its constituent sub-cycles, in particular the natural gas combined cycle. This analysis provides insights into the benefits of integrating the fuel cell and gas turbine architectures in a manner that improves the overall system performance to previously unseen efficiencies.

scholarly journals METAL INTERCONNECTS FOR SOLID OXIDE FUEL CELL POWER SYSTEMS

2003 ◽  
Author(s):  
S. Elangovan ◽  
S. Balagopal ◽  
M. Timper ◽  
I. Bay ◽  
D. Larsen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Power Systems ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Metal Interconnects

scholarly journals Tubular Solid Oxide Fuel Cell/Gas Turbine Hybrid Cycle Power Systems — Status

2000 ◽  
Author(s):  
Stephen E. Veyo ◽  
Larry A. Shockling ◽  
Jeffrey T. Dederer ◽  
James E. Gillett ◽  
Wayne L. Lundberg
Keyword(s):  
Fuel Cell ◽  
Power Systems ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Solid Oxide ◽  
Turbine Engines ◽  
Oxide Fuel ◽  
Power Cycle ◽  
Physical Attributes ◽  
Gas Fuel

The solid oxide fuel cell (SOFC) is a simple electrochemical device that operates at 1000°C, and is capable of converting the chemical energy in natural gas fuel to AC electric power at approximately 45% efficiency (net AC/LHV) when operating in a system at atmospheric pressure. Since the SOFC exhaust gas has a temperature of approximately 850°C, the SOFC generator can be synergistically integrated with a gas turbine (GT) engine-generator by supplanting the turbine combustor and pressurizing the SOFC, thereby enabling the generation of electricity at efficiencies approaching 60% or more. Conceptual design studies have been performed for SOFC/GT power systems employing a number of the small recuperated gas turbine engines that are now entering the marketplace. The first hardware embodiment of a pressurized SOFC/GT power system has been built for Southern California Edison and is scheduled for factory acceptance tests beginning in Fall, 1999 at the Siemens Westinghouse facilities in Pittsburgh, Pennsylvania. The hybrid power cycle, the physical attributes of the hybrid systems, and their performance are presented and discussed.

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