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Modeling of Pem Fuel Cell Systems Including Controls and Reforming Effects for Hybrid Automotive Applications
| 题名： | Modeling of Pem Fuel Cell Systems Including Controls and Reforming Effects for Hybrid Automotive Applications |
| 作者： | Boettner, Daisie D.; |
| 关键词： | EMISSION, FUEL CELLS, SIMULATORS, FUEL SYSTEMS, UNITED STATES GOVERNMENT, STRATEGY, COST EFFECTIVENESS, PERFORMANCE(ENGINEERING), EFFICIENCY, CURRENT DENSITY, PROTONS, CYCLES, SCHEDULING, LIMITATIONS, CONFIGURATIONS, SELF CONTAINED, METHANOLS, LOW LEVEL, |
| 摘要： | Due to the nature of fuel cell reactions, fuel cells have the potential of being more fuel efficient while generating fewer harmful emissions than conventional automotive power systems. Additionally, by hybridizing a fuel cell system with a battery, opportunities may exist for significantly improving overall performance. This study develops models for a stand-alone Proton Exchange Membrane (PEM) fuel cell stack, a direct-hydrogen fuel cell system including auxiliaries, and a methanol reforming fuel cell system for integration into a vehicle performance simulator. Exergetic efficiencies associated with the three models are examined and sources of inefficiency are identified. Fuel cell stack efficiency is highest when operating at low current density. Air compressor power consumption and losses associated with ref |
| 总页数： | 262 |
| 报告类型： | 科技报告 |
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