Simulation analysis of a system combining solid oxide and polymer electrolyte fuel cells
We evaluated the performance of system combining a solid oxide fuel cell (SOFC) stack and a polymer electrolyte fuel cell (PEFC) stack by a numerical simulation. We assume that tubular-type SOFCs are used in the SOFC stack. The electrical efficiency of the SOFC–PEFC system increases with increasing...
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| Veröffentlicht in: | Journal of power sources 2004-10, Vol.137 (2), p.206-215 |
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| creator | Yokoo, Masayuki Take, Tetsuo |
| description | We evaluated the performance of system combining a solid oxide fuel cell (SOFC) stack and a polymer electrolyte fuel cell (PEFC) stack by a numerical simulation. We assume that tubular-type SOFCs are used in the SOFC stack. The electrical efficiency of the SOFC–PEFC system increases with increasing oxygen utilization rate in the SOFC stack. This is because the amount of exhaust heat of the SOFC stack used to raise the temperature of air supplied to it decreases as its oxygen utilization rate increases and because that used effectively as the reaction heat of the steam reforming reaction of methane in the stack reformer increases. The electrical efficiency of the SOFC–PEFC system at 190
kW ac is 59% (LHV), which is equal to that of the SOFC-gas turbine combined system at 1014
kW ac. |
| doi_str_mv | 10.1016/j.jpowsour.2004.06.007 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0378-7753 |
| ispartof | Journal of power sources, 2004-10, Vol.137 (2), p.206-215 |
| issn | 0378-7753 1873-2755 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Combined system Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Methane Polymer electrolyte fuel cell Solid oxide fuel cell Steam reforming reaction |
| title | Simulation analysis of a system combining solid oxide and polymer electrolyte fuel cells |
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