Fuel cell leakage detection technique

Details Fuel cell leakage detection technique Fuel cell leakage detection technique

1991-12-30

1993-08-17

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 191, 429 13, 429 90, G01M 320

Patent

active

052358461

ABSTRACT:
Cross-over leakage in fuel cells is determined by comparing the concentration of carbon dioxide in the oxidant inlet stream and cathode effluent. The amount of carbon dioxide in the oxidant stream of a fuel cell should remain constant, barring leakage problems. Therefore, if the carbon dioxide concentration changes, a leakage problem exists. Since this process is in-line, the staff operating the fuel cell stack is virtually immediately alerted to a potential leakage problem.

REFERENCES:
patent: 4314029 (1982-02-01), Ohtake et al.
patent: 4551425 (1985-11-01), Zemel
patent: 5010776 (1991-04-01), Lucero et al.
patent: 5153141 (1992-10-01), Hobbs

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