| Title |
Performance Enhancement of a PEMFC by Modification of Air Inlet Flow Header Configuration |
| Authors |
김원년(Won Nyun Kim) ; 김윤호(Yun Ho Kim) ; 김서영(Seo Young Kim) |
| Keywords |
공기유량 ; 전산유체역학 ; 고분자전해질 연료전지 ; 성능곡선 Air flow rate ; CFD ; PEMFC ; Polarization curve |
| Abstract |
In the present study, a 10-cell PEMFC stack with straight type cathode flow channels is employed to investigate the effect of inlet air flow header configuration on the overall fuel cell performance. Four different types of inlet flow headers are considered and the flow patterns according to the air inlet flow header configuration are numerically obtained. The computed result for a modified header predicts about 8.5% improvement in the air flow distribution at 10-cell cathode channel inlets. Experiments are also carried out to confirm the numerical findings by measuring actual air flow distributions and the polarization curves of the PEMFC stack. |