ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
A mode of operation and a design technique have been developed which permit the attainment of continuous purging of impurities directly from the gas compartments of a fuel cell - either anode, cathode, or both - with the realization of minimum reactant loss, most stable voltage and current output, and operating conditions with respect to reactant gas flow and electrolyte inventory. We have found a way to eliminate the complex periodic purge valves and attendant electronics by a fuel cell system which is both simple in structure and operation and which has a high degree of reliability. The technique was suggested by the observation that in dead-ended fuel cell gas compartments, the inert impurities present in reactant gases tend to accumulate at the dead-ended portion of the cell. Hence a small amount of bleed should be placed there. This observation has been made analytically by solving numerically a system of two partial differential equations simultaneously.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690170528
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