Advanced space power PEM fuel cell systemsA model showing mass and heat transfer in proton exchange membrane (PEM) single cells is presented. For space applications, stack operation requiring combined water and thermal management is needed. Advanced hardware designs able to combine these two techniques are available. Test results are shown for membrane materials which can operate with sufficiently fast diffusive water transport to sustain current densities of 300 ma per square centimeter. Higher power density levels are predicted to require active water removal.
Document ID
19900008391
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vanderborgh, N. E. (Los Alamos National Lab. NM, United States)
Hedstrom, J. (Los Alamos National Lab. NM, United States)
Huff, J. R. (Los Alamos National Lab. NM, United States)