Performance of a solid oxide fuel cell couple operated via in situ catalytic partial oxidation of n-butane |
| |
Authors: | Michio Horiuchi Fumimasa Katagiri Jun Yoshiike Shigeaki Suganuma Yasue Tokutake Helmut Kronemayer Wolfgang G. Bessler |
| |
Affiliation: | 1. Shinko Electric Industries, 38 Kitaowaribe, 381-0014 Nagano, Japan;2. Institut für Verbrennung und Gasdynamik (IVG), Universität Duisburg-Essen, Lotharstrasse 1, 47057 Duisburg, Germany;3. Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Technische Thermodynamik, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany |
| |
Abstract: | The operation of a pair of anode-to-anode-facing solid oxide fuel cells (SOFCs) via in situ catalytic partial oxidation (CPO) of n-butane was investigated. In this simple “no-chamber” setup, butane is partially oxidized by heterogeneous reactions inside the porous anodes, providing processed fuel and the heat required for SOFC operation. The cell couple yielded a power density of up to 270 mW cm−2, and the maximum total power obtained was 1.2 W with cell sizes of 13 mm × 23 mm. The maximum electrical efficiency was 1.3%. High CO concentrations of up to 1000 ppm were detected in the exhaust gas, indicating that the cell couple could not efficiently consume the complete provided fuel. A flame, lit at the exhaust, minimized the carbon monoxide level while having insignificant influence on the cell performance. Thermal insulation of the cell couple improved the output remarkably, showing the strong influence of temperature on cell performance. The two cells had a distance of only 2 mm, suggesting a potential for high volumetric power densities in multi-cell configurations for a self-sustained combined heat and power system. |
| |
Keywords: | Solid oxide fuel cell (SOFC) Direct-flame fuel cell (DFFC) Catalytic partial oxidation (CPO) High volumetric power density Hydrocarbon Reforming |
本文献已被 ScienceDirect 等数据库收录! |
|