Fuel cell stack with an integral ejector for reactant gas recirc

Details Fuel cell stack with an integral ejector for reactant gas recirc Fuel cell stack with an integral ejector for reactant gas recirc

1975-05-02

1976-09-28

Kaplan, G. L.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

H01M 806

Patent

active

039829618

ABSTRACT:
A stack of fuel cells operating on gaseous reactants includes an ejector in integral heat exchange relationship with the stack for recirculating one of the reactant gases through the cells of the stack. The recirculating reactant is continuously heated by waste heat from the cells as it recirculates thereby preventing condensation of water from the recirculating reactant gas and thereby maintaining the dew point constant from the time the reactant gas leaves the cells until it is mixed with fresh reactant in the ejector. The fresh reactant gas is preheated prior to being introduced to the ejector so that there is no condensation throughout the entire loop. The recirculation rate relative to the amount of fresh reactant can be controlled to regulate the dew point at the entrance to the cells to best advantage. By this invention flooding of the electrodes or drying of the electrodes does not occur.

REFERENCES:
patent: 3379572 (1968-04-01), Gay
patent: 3542598 (1970-11-01), White et al.

Affiliated with

Also associated with

Rating

Fuel cell stack with an integral ejector for reactant gas recirc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel cell stack with an integral ejector for reactant gas recirc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell stack with an integral ejector for reactant gas recirc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2079003