Performance enhancement of proton exchange membrane fuel cells with bio-inspired gear-shaped flow channels

Ke, Yuzhi; Zhang, Baotong; Yuan, Wei; Bai, Yafeng; Zhao, Yonghao; Liu, Zi'ang; Lin, Zhenhe; Li, Xinze; Wang, Yangang; Tang, Yong

doi:10.1016/j.cej.2023.145870

Cited by 11 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The uniformity of velocity distribution in the process of air transport can be improved by optimizing flow fields and flow channels. Recently, scholars have optimized or designed flow fields and flow channels, including three-dimensional (3D) bionic flow fields [91], conical flow fields [92], 3D fine grid flow fields [93], 3D torsional parallel flow fields [94], improved Z-shaped flow fields [95], five-channel serpentine flow fields [96], parallel-serpentine-parallel flow channels [97], planthopper tooth-shaped flow channels (GFCH) [98], traveling wave flow channels [99], and so on. As shown in Table 7, according to the research results, compared with the traditional parallel and serpentine flow fields and channels, these new flow fields and channels have better performance; in contrast, the five-channel serpentine flow field, GFCH, and traveling wave flow channel are superior in improving air transmission speed, distribution uniformity, and water removal.…”

Section: Optimization Of Adsmentioning

confidence: 99%

“…Enhance mass transfer and avoid blockage Ke et al [98] The transmission speed of air is changed using the wave structure at the bottom of the GFCH.…”

Section: Reduce Concentration Polarization and Avoid Cloggingmentioning

confidence: 99%

“…Ke et al [98] Hu et al [97] By connecting the serpentine channel to two parallel channels and making use of the single-channel characteristics of the serpentine channel, the air in the parallel channel is collected and redistributed.…”

Section: Flow Field Type Flow Field Structure Mechanism Advantagesmentioning

confidence: 99%

See 2 more Smart Citations

Research Progress on Gas Supply System of Proton Exchange Membrane Fuel Cells

Cheng,

Wu,

Mou

et al. 2024

Processes

View full text Add to dashboard Cite

Proton exchange membrane fuel cells (PEMFCs) are attracting attention for their green, energy-saving, and high-efficiency advantages, becoming one of the future development trends of renewable energy utilization. However, there are still deficiencies in the gas supply system control strategy that plays a crucial role in PEMFCs, which limits the rapid development and application of PEMFCs. This paper provides a comprehensive and in-depth review of the PEMFC air delivery system (ADS) and hydrogen delivery system (HDS) operations. For the ADS, the advantages and disadvantages of the oxygen excess ratio (OER), oxygen pressure, and their decoupling control strategies are systematically described by the following three aspects: single control, hybrid control, and intelligent algorithm control. Additionally, the optimization strategies of the flow field or flow channel for oxygen supply speeds and distribution uniformity are compared and analyzed. For the HDS, a systematic review of hydrogen recirculation control strategies, purge strategies, and hydrogen flow control strategies is conducted. These strategies contribute a lot to improving hydrogen utilization rates. Furthermore, hydrogen supply pressure is summarized from the aspects of hybrid control and intelligent algorithm control. It is hoped to provide guidance or a reference for research on the HDS as well as the ADS control strategy and optimization strategy.

show abstract

Section: Optimization Of Adsmentioning

confidence: 99%

“…Enhance mass transfer and avoid blockage Ke et al [98] The transmission speed of air is changed using the wave structure at the bottom of the GFCH.…”

Section: Reduce Concentration Polarization and Avoid Cloggingmentioning

confidence: 99%