Direct Solid Oxide Fuel Cell Operation Using a Dimethyl Ether/Air Fuel Mixture

2005 ◽  
Vol 8 (10) ◽  
pp. A531 ◽  
Author(s):  
E. Perry Murray ◽  
S. J. Harris ◽  
J. Liu ◽  
S. A Barnett
2006 ◽  
Vol 9 (6) ◽  
pp. A292 ◽  
Author(s):  
Erica Perry Murray ◽  
Stephen J. Harris ◽  
Jiang Liu ◽  
Scott A. Barnett

Author(s):  
Randall S. Gemmen ◽  
Christopher D. Johnson

The dynamics of solid oxide fuel cell operation (SOFC) have been considered previously, but mainly through the use of one-dimensional codes applied to co-flow fuel cell systems. In this paper a cross-flow geometry is considered. The details of the model are provided, and the model is compared with some initial experimental data. For parameters typical of SOFC operation, a variety of transient cases are investigated, including representative load increase and decrease and system shutdown. Of particular note are results showing cases having reverse current over significant portions of the cell, starting from the moment of load perturbation up to the point where equilibrated conditions again provide positive current. Consideration is given as to when such reverse current conditions might most significantly impact the reliability of the cell.


2015 ◽  
Vol 283 ◽  
pp. 151-161 ◽  
Author(s):  
Ragnar Kiebach ◽  
Wei-Wei Zhang ◽  
Wei Zhang ◽  
Ming Chen ◽  
Kion Norrman ◽  
...  

2019 ◽  
Vol 11 (33) ◽  
pp. 63-70 ◽  
Author(s):  
Olga Marina ◽  
Larry R. Pederson ◽  
Danny J. Edwards ◽  
Chris A. Coyle ◽  
Jared Templeton ◽  
...  

2012 ◽  
Vol 1385 ◽  
Author(s):  
Amy E. Richards ◽  
Neal P. Sullivan ◽  
Huayang Zhu ◽  
Robert J. Kee

ABSTRACTSolid-oxide fuel cell (SOFC) performance depends greatly upon electrode design. The composite anode plays a critical role in fuel reforming, especially when hydrocarbons are included in the fuel mixture. Because direct observation of fuel reforming in a functioning SOFC is difficult, if not impossible, an alternative experimental configuration is needed to evaluate anode performance. The Separated Anode Experiment (SAE) is designed to isolate and study porous-media transport and heterogeneous reforming chemistry in SOFC anodes. Although the experiment does not incorporate a dense electrolyte membrane or a cathode, it is configured to replicate important aspects of anode behavior in a fully operational SOFC. The experiment is also designed to facilitate model-based interpretation of the results. Comparisons of two significantly different anode structures are used to illustrate the experimental and modeling capabilities.


Sign in / Sign up

Export Citation Format

Share Document