During latter-stage, “start-up” heating of a solid oxide fuel cell (SOFC) stack to a desired operating temperature, heat may be generated in an accelerating manner during the establishment of electrochemical reactions. This is because a temperature rise in the stack causes an acceleration of electrochemical transport given the typical Arrhenius nature of the electrolyte conductivity. Considering a potentiostatic condition (i.e., prescribed cell potential), symbiosis thus occurs because greater current prevalently leads to greater by-product heat generation, and vice versa. This interplay of the increasing heat generation and electrochemistry is termed “light off”, and an initial model has been developed to characterize this important thermal cycling phenomenon. The results of the simulation begin elucidating the prospect of using cell potential as well as other electrochemical operating conditions (e.g., reactants utilization) as dynamic controls in managing light off transients and possibly mitigating thermal cycling issues.
Skip Nav Destination
ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
July 17–22, 2005
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division and Electronic and Photonic Packaging Division
ISBN:
0-7918-4734-9
PROCEEDINGS PAPER
A Simulation of the Solid Oxide Fuel Cell Electrochemical Light Off Phenomenon Available to Purchase
Comas L. Haynes,
Comas L. Haynes
Georgia Institute of Technology, Atlanta, GA
Search for other works by this author on:
J. Chris Ford
J. Chris Ford
Georgia Institute of Technology, Atlanta, GA
Search for other works by this author on:
Comas L. Haynes
Georgia Institute of Technology, Atlanta, GA
J. Chris Ford
Georgia Institute of Technology, Atlanta, GA
Paper No:
HT2005-72845, pp. 47-50; 4 pages
Published Online:
March 9, 2009
Citation
Haynes, CL, & Ford, JC. "A Simulation of the Solid Oxide Fuel Cell Electrochemical Light Off Phenomenon." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 4. San Francisco, California, USA. July 17–22, 2005. pp. 47-50. ASME. https://doi.org/10.1115/HT2005-72845
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Dynamic Behavior of a Solid Oxide Steam Electrolyzer System Using Transient Photovoltaic Generated Power for Renewable Hydrogen Production
J. Electrochem. En. Conv. Stor (November,2019)
A Numerical Model Coupling the Heat and Gas Species’ Transport Processes in a Tubular SOFC
J. Heat Transfer (April,2004)
Comprehensive Numerical Modeling and Analysis of a Cell-Based Indirect Internal Reforming Tubular SOFC
J. Fuel Cell Sci. Technol (February,2006)
Related Chapters
Scope of Section I, Organization, and Service Limits
Power Boilers: A Guide to the Section I of the ASME Boiler and Pressure Vessel Code, Second Edition
Pool Boiling
Thermal Management of Microelectronic Equipment, Second Edition
Threshold Functions
Closed-Cycle Gas Turbines: Operating Experience and Future Potential