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- 저자 : 진집(Jib Jin) (검색결과 1 건)
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고분자 전해질형 연료전지 기체 확산층(Gas Diffusion Layer)을 통한 물 유동 특성 가시화
진집(Jib Jin),이재석(Jae Seok Lee),최선종(Seon Jong Choi),김한상(Han-Sang Kim) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
In a Polymer Electrolyte Membrane Fuel Cell (PEMFC), the effective water management is a one of the important strategies for improving fuel cell performance and efficiency gains. In this study, the improved design in the unit simulated flow field configuration was adopted to study the characteristic of water flow in the flow field channel through the gas diffusion layer (GDL). The previous design has some problems in sealing because it was assembled by four bolts and nuts. It was so difficult to distribute each pressure equally in a water inlet because of the location of water inlet. In the new design of this study, to improve the strength, the location of water inlet was moved to the center of flow field channel. Six bolts and six nuts remain at equal distance in a circular manner were used for more even pressure distribution and better sealing. Water is supplied equally by using a syringe pump with a flow rate of 10μℓ/min and the visualization of water droplet on GDL surface was recorded by a Charge Coupled Device (CCD) camera system. Through the experiment using the newly designed configuration, the appearance and growth of water droplet towards the flow channel through the GDL can be effectively investigated. This study can be used to provide the basic data for an effectual method of removing water from the flow channels of PEMFC.
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