Dynamic performance of a high-temperature PEM fuel cell – An experimental study

Caizhi Zhang, Zhitao Liu, Weijiang Zhou, Siew Hwa Chan and Youyi Wang

Energy, 2015, vol. 90, issue P2, 1949-1955

Abstract: The dynamic behaviour of a fuel cell under varying of load is important for control and optimization. Experimental study on dynamic voltage of a HT-PEMFC (high-temperature PEM fuel cell) was conducted under 5 different currents operating on an anodic flow-through mode, dead-end mode with fixed purging intervals and dead-end mode with varying purging intervals after obtaining their forward and backward polarization curves. The results revealed that the hydration/dehydration processes of phosphoric acid used in HT-PEMFC would affect the dynamic behaviour of the fuel cell, and can be concluded by a few observations: (1) Hysteresis phenomenon was captured in the polarization study when cell current is swept from low to high (forward sweeping), then high to low (backward sweeping); (2) Under anodic flow-through mode, the magnitudes of voltage undershoots and overshoots were less severe at high current than those at the low current operation; (3) The peak performance of HT-PEMFC under anodic dead-end mode operation outperformed that under anodic flow-through mode. However, the performance of HT-PEMFC reduced gradually after the purging and the shape of the dynamic voltage curve under the longest purging interval overlapped with that under shorter purging intervals.

Keywords: HT-PEMFC (high-temperature PEM fuel cell); Flow-through mode; Dead-end mode; Dynamic voltage response (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544215009214
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:90:y:2015:i:p2:p:1949-1955

DOI: 10.1016/j.energy.2015.07.026

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().