Dynamic simulation and optimization of a residential proton exchange membrane fuel cell (PEMFC) combined heat and power (CHP) system

Yuanming Wang, Zhen Zeng, Tianyou Wang and Zhizhao Che

Energy, 2025, vol. 319, issue C

Abstract: Combined heat and power (CHP) based on proton exchange membrane fuel cells (PEMFCs) is a high-efficiency hydrogen-energy-utilization technique. However, because of the complex coupling between the dynamic demand and supply of energy, the operation of PEMFC-CHP needs to be optimized. Here, a residential PEMFC-CHP system is established and its operation is optimized by performing dynamic simulations of the system. The system performance is evaluated based on the matching degree, system efficiency, energy-saving coefficient, environmental coefficient, and fluctuation degree. Various operating modes are considered, namely constant mode, electrical-led mode, rectangular electrical-led mode, ladder mode, and optimal mode. The electrical efficiency under the ladder mode is higher than that of the constant mode. The electrical efficiency under the electrical-led mode is higher than the rectangular electrical-led mode, while the corresponding fluctuation degree is higher. The optimal mode based on the electrical demand is proposed to balance the performance of the system.

Keywords: Proton exchange membrane fuel cell; PEMFC-CHP; Dynamic simulation; Operation mode; Optimization (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:319:y:2025:i:c:s0360544225005079

DOI: 10.1016/j.energy.2025.134865

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