A dynamic model for hydrogen consumption of fuel cell stacks considering the effects of hydrogen purge operation

Yongping Hou, Caoyuan Shen, Dong Hao, Yanan Liu and Hong Wang

Renewable Energy, 2014, vol. 62, issue C, 672-678

Abstract: The actual hydrogen consumption of a fuel cell stack varies with a fixed time delay under the step load change. For each individual stack, the delay time in the step-up load stage is generally shorter than in the step-down stage. Due to the hydrogen purge operation, transient overshoots take place intermittently after the actual hydrogen consumption reaches the steady state, and the duration and peak value of such overshoots are distributed approximately within a fixed range. Based on the performance investigation mentioned above, an improved dynamic model for hydrogen consumption of a fuel cell stack considering the effects of hydrogen purge operation is introduced in this paper. Compared with the previous model, the suggested model indicates a better agreement between test and simulation, especially in the working condition of hydrogen purge operation.

Keywords: PEM fuel cell stack; Hydrogen consumption; Time delay; Hydrogen purge; Dynamic model (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:62:y:2014:i:c:p:672-678

DOI: 10.1016/j.renene.2013.08.031

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