Experimental study of the thermal and power performances of a proton exchange membrane fuel cell stack affected by the coolant temperature

Liu, Qi; Xu, Huiwen; Lin, Zhe; Zhu, Zuchao; Wang, Haifeng; Yuan, Yunchao

doi:10.1016/j.applthermaleng.2023.120211

Cited by 16 publications

(1 citation statement)

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“…Hydrogen fuel cell vehicles (HFCVs) are considered the greenest [4] and most sustainable technology [5], which employ proton exchange membrane fuel cells (PEMFCs) as the power generation device [6]. PEMFCs utilize hydrogen [7] and oxygen as reactants [8], resulting in only electrical energy and water as byproducts [9], so they are considered the most promising power generation technology in HFCVs [10]. The high-speed, oil-free centrifugal air compressor plays a crucial role as part of the cathode air system in HFCVs [11].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment and Optimization of the Ultra-High Speed Air Compressor in Hydrogen Fuel Cell Vehicles

Shi,

Peng

2024

Applied Sciences

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Air compressors in hydrogen fuel cell vehicles play a crucial role in ensuring the stability of the cathode air system. However, they currently face challenges related to low efficiency and poor stability. To address these issues, the experimental setup for the pneumatic performance of air compressors is established. The effects of operational parameters on energy consumption, efficiency, and mass flow rate of the air compressor are revealed based on a Morris global sensitivity analysis. Considering a higher flow rate, larger efficiency, and lower energy consumption simultaneously, the optimal operating combination of the air compressor is determined based on grey relational multi-objective optimization. The optimal combination of operational parameters consisted of a speed of 80,000 rpm, a pressure ratio of 1.8, and an inlet temperature of 18.3 °C. Compared to the average values, the isentropic efficiency achieved a 48.23% increase, and the mass flow rate rose by 78.88% under the optimal operational combination. These findings hold significant value in guiding the efficient and stable operation of air compressors. The comprehensive methodology employed in this study is applicable further to investigate air compressors for hydrogen fuel cell vehicles.

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