This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Analysis of Shutdown for an Operational Fuel Cell Transit Bus
Technical Paper
2001-01-2778
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The shutdown process of an operational phosphoric acid fuel cell transit bus has been investigated. The bus employs a hybrid arrangement of a 50 kW Phosphoric Acid Fuel Cell (PAFC) engine in parallel with Nickel-Cadmium batteries on a 30-foot heavy-duty transit bus chassis manufactured by Bus Manufacturing Inc. The bus uses methanol as the primary fuel, which is processed through a steam-reformer to produce hydrogen used in the fuel cell. Rapid cooling of PAFC power plants will induce component damage. Shutdown of the fuel cell bus is defined as the time that is required for the controlled reduction from operating temperatures within the fuel cell stack and reformer to minimize component degradation. While in general fuel cell vehicles produce low emissions and are very efficient while operating, shutdown of the fuel cell bus represents a significant time requirement, power and fuel consumption, and considerable pollutant emissions with no usable output power. A description of the shutdown procedure for the bus, fuel and power usage, average time required, and analysis of emissions data are presented.
Recommended Content
Technical Paper | Identification of Response-Limiting Processes in an Indirect Methanol Fuel Cell Bus Powertrain |
Technical Paper | Development of Fuel-Cell Hybrid Bus |
Technical Paper | Experimental Vibration Assessment of a Fuel Cell Transit Bus |
Authors
- Michael J. Heckwolf - Department of Mechanical Engineering, University of Florida
- Paul A. Erickson - Department of Mechanical Engineering, University of Florida
- Timothy C. Simmons - Department of Mechanical Engineering, University of Florida
- Vernon P. Roan - Department of Mechanical Engineering, University of Florida
Topic
Citation
Heckwolf, M., Erickson, P., Simmons, T., and Roan, V., "An Analysis of Shutdown for an Operational Fuel Cell Transit Bus," SAE Technical Paper 2001-01-2778, 2001, https://doi.org/10.4271/2001-01-2778.Also In
References
- Blomen, L.J.M.J. Mugerwa Michael N. Fuel cell systems Plenum Press New York 1993
- Wiese, W. Emonts B. Peters R. “Methanol steam reforming in a fuel cell drive system” Journal of Power Sources 84 2 1999 187 193 1999
- Erickson, P. A. Betts D. A. Simmons T. C. Roan V. P. “An Analysis of Start-up for an Operational Fuel Cell Transit Bus” Truck and Bus Meeting and Exposition December 4-6 2000 SAE Paper 2000-01-3471
- Kaufman, A. “Phosphoric acid fuel cell power system for TBB” Proceedings - Society of Automotive Engineers Annual Automotive Technology Development Contractors' Coordination Meeting P-256 199 211 1992
- Larkins, J. T. Wimmer, R. R. Communication Aug 6 2001
- Wimmer, R. R. Fletcher J. Clark N. N. McKain D. L. Lyons D. W. “Emissions testing of a hybrid fuel cell bus” General Emissions SAE Special Publications Proceedings of the 1998 SAE International Congress & Exposition 1335 Feb 1998 980680 267 276 1998