Hybrid fuel cell for pulse power applications
- CECOM Research Development and Engineering Center, Fort Monmouth, NJ (United States)
A hybrid fuel cell demonstrated pulse power capability. It successfully ran a pulse power load simulation synonymous with electronics and communications equipment. The hybrid consisted of a 25 W Proton Exchange Membrane Fuel Cell (PEMFC) stack in parallel with a 70 farad capacitor assembly. A cyclic regime of 18.0 W for 2 minutes followed by 2.5 W for 18 minutes was chosen as the basic test regime. The operating potential cut-off voltage for pass/failure was set to 3.0 V. At room temperature (23--25 C), the PEMFC alone could not successfully power the baseline regime previously described. The PEMFC operating potential dropped below 3.0 V within 10 seconds. The hybrid continuously powered the cyclic regime for 25 hours. The hybrid`s operating potential never reached the voltage cut-off, even during the high load of 18.0 W. The tests were aborted after 25 hours of operation with no signs of output degradation, suggesting that continuous operation is possible.
- OSTI ID:
- 549326
- Report Number(s):
- CONF-970168-; ISBN 0-7803-3631-3; TRN: IM9751%%9
- Resource Relation:
- Conference: 12. Annual battery conference on applications and advances, Long Beach, CA (United States), 14-17 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of The twelfth annual battery conference on applications and advances: Proceedings; Frank, H.A.; Seo, E.T. [comps.]; PB: 364 p.
- Country of Publication:
- United States
- Language:
- English
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