 |
[email protected] |
 |
3275638434 |
 |
 |
| Paper Publishing WeChat |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
System Validation Tests for an SOFC Power System at INER
Shih-Kun Lo, Wen-Tang Hong, Hsueh-I Tan, Huan-Chan Ting, Ting-Wei Liu and Ruey-Yi Lee
Full-Text PDF
XML 867 Views
DOI:10.17265/1934-7375/2017.01.002
This research presents the results of system validation tests for an SOFC power system. In the study, the system was heated up without electric device, i.e., the fuel providing the required thermal energy through an integrated BOP (balance of plant). The ex-situ experiments, without an SOFC stack installed in the system, were first conducted to investigate the operability of a BOP apparatus. It was found that the BOP possessed high conversion rates for both steam reforming and water gas shift reactions. The total fuel concentration of hydrogen and carbon monoxide from the reformer was around 91.2%. The system validation tests showed that, with the natural gas as fuel, the output power from the stack reached to 1,060 W, while the fuel utilization efficiency and electrical efficiency were 67.16% and 45.0%, respectively. A steady 600-hour system operation test was carried out at an average system temperature of 694 oC. Of which, a 36-cell stack was employed for the test. Meanwhile, the current, voltage and output power were 26 A, 32.3 V and 840 W, respectively, and its electrical efficiency was around 33.4%.
SOFC power system, fuel utilization, electrical efficiency.
[1] Peters, R., Blum, L., Deja, R., Hoven, I., Tiedemann, W., Küpper, S., and Stolten, D. 2014. “Operation Experience with a 20 kW SOFC System.” Fuel Cells 14 (3): 489-99.
[2] Peters, R., Deja, R., Blum, L., and Hakala, T. 2013. “Analysis of Solid Oxide Fuel Cell System Concepts with Anode Recycling.” International Journal of Hydrogen Energy 38 (16): 6809-20.
[3] Halinen, M., Saariene, J., Noponen, M., Vinke, I. C., and Kiviaho, J. 2010. “Experimental Analysis on Performance and Durability of SOFC Demonstration.” Fuel Cells 10 (3): 440-52.
[4] Halinen, M., Thomann, O., and Kiviaho, J. 2012. “Effect of Anode Off-gas Recycling on Reforming of Natural Gas for Solid Oxide Fuel Cell Systems.” Fuel Cells 12 (5): 754-60.
[5] Lee, T. S., Chung J. N., and Chen, Y. C. 2011. “Design and Optimization of a Combined Fuel Reforming and Solid Oxide Fuel Cell System with Anode Off-gas Recycling.” Energy Conversion and Management 52: 3214-26.
[6] Wahl, S., Segarra, A. G., Horstmann, P., Carre, M., Bessler, W. G., Lapicque, F., and Friedrich, K. A. 2015. “Modeling of a Thermally integrated 10 kW(e) Planar Solid Oxide Fuel Cell System with Anode Off-gas Recycling and Internal Reforming by Discretization in Flow Direction.” Journal of Power Sources 279: 656-66.
[7] Lo, S. K., Huang, C. N., Tan, H. I., Lin, C. H., Hong, W. T., and Lee, R. Y. 2014. “Validation System Performance Tests for a Kilowatt Grade SOFC System” 11th European SOFC & SOE Forum, Lucerne Switzerland, July.