Performance study of centrifugal air compressor for proton exchange membrane fuel cell systems

Abstract

Nowadays, energy and environmental issues have strongly attracted the attention of researchers in these fields. Various clean energy technologies have been proposed and studied. As one highly efficient and clean energy technology, the polymer electrolyte membrane (PEM) fuel cell has been studied in recent years. The significant applications of PEM fuel cells focus on transportation, distributed/stationary, and portable power generation. 1 And the PEM fuel cell becomes the most desirable option for power generation in the 21st century. 2 The air supply system is one of the crucial subsystems in PEM fuel cell systems. 3 The air supply system characteristics have an important influence on the performance of PEM fuel cell systems. Control methods and the effect on the fuel cell output of the air supply system were researched. [4][5][6][7] In air supply systems, compressors are the key devices that significantly affect the air supply system and the characteristics of fuel cells.

Elucidating the Mass Transportation Behavior of Gas Diffusion Layers via a H2 Limiting Current Test

“…When the mass transport resistance increases, more energy is needed to compress hydrogen to the target pressure, reducing the efficiency of the compressor. The hydrogen transport resistance directly determines the compression capacity and transport efficiency of hydrogen, which plays an important role in improving the performance and stability of EHCs [ 27 , 28 , 29 ]. Therefore, it is necessary and important to develop a facile and reliable technique to investigate the H 2 transport resistances for EHCs and this H 2 probe method provides a new approach.…”