期刊
JOURNAL OF POWER SOURCES
卷 196, 期 1, 页码 46-53出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.07.042
关键词
Chlamydomonas reinhardtii; Proton exchange membrane; Fuel cells; Biohydrogen; Mass transfer; Mixing
Photo-biologically produced hydrogen by Chlamydomonas reinhardtii is integrated with a proton exchange (PEM) fuel cell for online electricity generation. To investigate the fuel cell efficiency, the effect of hydrogen production on the open circuit fuel cell voltage is monitored during 27 days of batch culture. Values of volumetric hydrogen production, monitored by the help of the calibrated water columns, are related with the open circuit voltage changes of the fuel cell. From the analysis of this relation a dead end configuration is selected to use the fuel cell in its best potential. After the open circuit experiments external loads are tested for their effects on the fuel cell voltage and current generation. According to the results two external loads are selected for the direct usage of the fuel cell incorporating with the photobioreactors (PBR). Experiments with the PEM fuel cell generate a current density of 1.81 mA cm(-2) for about 50 h with 10 Omega load and 0.23 mA cm(-2) for about 80 h with 100 Omega load. (c) 2010 Elsevier B.V. All rights reserved.
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