Dynamic modeling and comprehensive analysis of proton exchange membrane fuel cell systems with complete auxiliary system

Hao Fu, Fang Kong, Feng Wu, Xiao Wu and Jiong Shen

Renewable Energy, 2025, vol. 244, issue C

Abstract: Proton exchange membrane fuel cells are gaining attention as sustainable energy options due to their high efficiency and low emissions. However, the complex interaction of integrated auxiliary equipment poses challenges in achieving efficient and flexible system operation. To this end, this paper establishes an integrated mechanism of electrical, thermal, and humidity interactions in the fuel cell system, accounting for auxiliary energy consumption. Based on it, the steady state and dynamic flexibility of the system are investigated. Moreover, to analyze the changing law of energy consumption and system efficiency, the system's operating conditions were enumerated by varying the input variables, such as compressor voltage, humidification power, and coolant mass flow rate. Simulation results and comparative analysis indicate that appropriate load regulation and high-temperature operation significantly enhance the system's flexibility. With the increasing temperature at constant current, the energy consumption of the compressor increases by 0.6–4 %, whereas the proportion of cooling fans drops by 3–6 %. Moreover, although operating at high temperatures enhances the system's flexibility and load tracking capability, it also lowers its net efficiency by around 1 %. This research provides insights into improving flexible adjustment capability and efficiency of fuel cell systems, offering practical guidance for their application and development.

Keywords: Proton exchange membrane fuel cell; Dynamic modeling; Operation analysis; System efficiency (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148125003210
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:renene:v:244:y:2025:i:c:s0960148125003210

DOI: 10.1016/j.renene.2025.122659

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

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