Fuel cell coolers with inverse flow and condensation zone

Details Fuel cell coolers with inverse flow and condensation zone Fuel cell coolers with inverse flow and condensation zone

2006-12-19

2006-12-19

Kalafut, Stephen J. (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

07150929

ABSTRACT:
A fuel cell system having a fuel cell stack (9) employing a phosphoric acid or other electrolyte, includes a non-reactive zone (11) in each of a group of fuel cells between corresponding coolant plates (55), the coolant entering the coolant plates in an area adjacent to the non-reactive zones (29–31). Each fuel cell has three-pass fuel flow fields, the first pass substantially adjacent to a third zone (13), remote from the first zone, the second pass substantially adjacent to a second zone contiguous with the first zone, the coolant flowing (33, 34) from a coolant inlet (29) through the first zone, to the far side of the second zone, and (37–41) from the near side of the second zone to the third zone and thence (45–50) to a coolant exit manifold (30), which assures temperatures above 150° C. (300° F.), to mitigate CO poisoning of the anode within the reactive zones, and assuring temperatures below 140° C. (280° F.) to promote sufficient condensation of evaporated electrolyte in the non-reactive zones, so as to provide a long system life.

REFERENCES:
patent: 4345008 (1982-08-01), Breault
patent: 6322915 (2001-11-01), Collins et al.
patent: 6572995 (2003-06-01), Yang et al.
patent: 6723461 (2004-04-01), Gorman et al.
patent: 2003/0215692 (2003-11-01), Rock et al.
patent: WO 00/36680 (2000-06-01), None

Affiliated with

Also associated with

Rating

Fuel cell coolers with inverse flow and condensation zone 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 coolers with inverse flow and condensation zone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell coolers with inverse flow and condensation zone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3719784