- Title
- The Performance of Planar Solid Oxide Fuel Cells using Hydrogen-depleted Coal Syngas
- Author
- Burnette, David D.
- Degree
- Master of Science (MS), Ohio University,
Mechanical Engineering (Engineering), 2007.
- Advisor
- Gregory G. Kremer
- Pages
- 139p.
- Abstract
- Since solid oxide fuel cells can operate on fuel containing both hydrogen and carbon monoxide, it may prove possible to remove hydrogen from syngas streams for other purposes and allow the fuel cell to operate with higher carbon monoxide levels. In this study, electrolyte-supported solid oxide fuel cells were tested using hydrogen, syngas, and hydrogen-depleted syngas (HDS) as fuel sources. It was found that reducing the hydrogen flow rate by 50% while maintaining an equivalent fuel utilization rate increases the polarization of the electrode by less than 5%. Carbon deposition was avoided when the water content of the fuel reflected that of actual syngas. The drop in the ideal voltage plus the increase in the resistance of the cell equated to a measured loss in power density of 7.8%.
- Subject Headings
- Engineering, Mechanical
- Keywords
- solid oxide fuel cells; coal syngas; hydrogen-depleted syngas; coal gasification; hydrogen economy; anode polarization
Document number: ohiou1195165667.
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