Xiaofei Wen, Yang Qiu, Zhigang Zhan, Liusheng Xiao
School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, Zhejiang 316022, China.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China.
ACS Omega. 2022 Jun 9;7(24):20569-20583. doi: 10.1021/acsomega.2c00273. eCollection 2022 Jun 21.
The effects of ship vibrations on the mass transfer and performance of proton exchange membrane fuel cells (PEMFCs) have many vague aspects. Hence, the method of loading ship vibrations with the sliding mesh is first proposed in this paper. Furthermore, this method is adopted to form the solution of the simulation study of PEMFC performance under ship vibrations. In the framework of computational fluid dynamics, the ship vibration is loaded into the three-dimensional PEMFC model and successfully solved. Then, a series of special cases are performed to explore the gas distribution and output features of PEMFCs in ship environments with different vibrations. Finally, the results show that the ship vibrations have vectorial effects on the gas transfer in the PEMFC. Additionally, vibrations perpendicular to the channel evidently affect the gas transfer. Moreover, while the vibrations are parallel to the channel, they remain nearly normal. Relatively, a more significant influence on the output voltage of the PEMFC will occur under smaller frequencies and/or greater amplitudes of ship vibrations.
船舶振动对质子交换膜燃料电池（PEMFC）传质及性能的影响存在诸多模糊之处。因此，本文首次提出采用滑移网格加载船舶振动的方法。此外，采用该方法形成船舶振动下PEMFC性能模拟研究的解决方案。在计算流体动力学框架下，将船舶振动加载到三维PEMFC模型中并成功求解。然后，进行了一系列特殊工况，以探究不同振动情况下船舶环境中PEMFC的气体分布和输出特性。最后，结果表明船舶振动对PEMFC中的气体传输具有矢量效应。此外，垂直于通道的振动对气体传输有明显影响。而且，当振动与通道平行时，其影响几乎可以忽略不计。相对而言，在船舶振动频率较小和/或振幅较大的情况下，对PEMFC输出电压的影响更为显著。
