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Power Recovery by a Twin Screw Expander in a Fuel Cell Application
Technical Paper
2003-01-0411
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The fuel cell engine is being developed to be the future power source for transportation, gradually substituting the internal combustion engine.
For transportation both size and weight of components are very important. A common way of reducing size and weight of fuel cell engines is to use pressurized air systems. The stack, heat exchangers, pipes, valves etc. will be reduced in size and weight. There are also other advantages with pressurized systems: the response time when an increase in the power output is required is shortened, exhausting of the water continuously produced in stack is improved. Pressurized systems need an efficient, small, lightweight compressor. The Twin Screw compressor meets those requirements. By adding a Twin Screw Expander downstream the stack, 30-35% of the compressor input power can be recovered and the power output and the size and weight of the compressor drive motor reduced accordingly.
This paper will show possible improvement of the performance as well as different ways of integrating the compressor, the expander and the drive motor.
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Citation
Oscarsson, J., "Power Recovery by a Twin Screw Expander in a Fuel Cell Application," SAE Technical Paper 2003-01-0411, 2003, https://doi.org/10.4271/2003-01-0411.Also In
Fuel Cell Power for Transportation from the SAE 2003 World Congress on CD-ROM
Number: SP-1741CD; Published: 2003-03-03
Number: SP-1741CD; Published: 2003-03-03
References
- Lysholm Alf Smith Ronald B. Wilson W.A. 1943 The ELLIOTT-LYSHOLM Supercharger SAE War Engineering Production Meeting Detroit Jan 15 1943
- Kauder K. Prof. Dr.-Ing. Romba M. Dipl.-Ing. 1998 The SREW-hybride twin-screw supercharger. Load control concepts for Otto-cycle engines, state of development, simulation Schraubenmaschinen '98 Tagung Dortmund 30 September 1 Oktober 1998
- Oscarsson Johnny 1997 Test of the Twin Screw Compressor OA 0005 as an Expander at expansion ratio = 2, 2,5 and 3 Opcon Autorotor AB Saltsjö-Boo, Sweden
- Oscarsson Johnny 2002 The Twin Screw Expander used for power recovery in a fuel cell application Opcon Autorotor AB Salsjö-Boo, Sweden