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중성자 영상법을 이용한 PEMFC 에서의 물 배출 특성에 관한 실험적 연구
김태주(TaeJoo Kim),김종록(JongRok Kim),김무환(MooHwan Kim),심철무(CheulMuu Sim),이승욱(SeungWoo Lee),전진수(JinSoo Jeon) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
The neutron imaging technique was used to investigate the water discharge characteristics at PEMFC. The feasibility test apparatus was consisted of pressurized air and water in order to simulate the actual operating PEMFC. The feasibility tests have been performed at two kinds of flow field type (1-parallel and 3-parallel) with 100 ㎠ active area and different flow rate (200, 400, and 850 ㏄/min). Although the water and pressurized air was supplied only into cathode, the water movement into anode was found by neutron image. The water at cathode is well discharged, but except the 850 ㏄/min at 3-parallel flow field type, the water at the anode was not removed by pressurized air. The total water volume variations at each condition were calculated from the neutron images. This technique can be used for detailed studies on water distribution and transport in the PEMFC.
중성자 방사선 촬영법을 이용한 PEMFC 내의 2 상 유동 가시화 예비 실험
김태주(TaeJoo Kim),정용미(YongMi Jung),김무환(MooHwan Kim),M.Arif(M. Arif),심철무(CheulMuu Sim),이승욱(SeungWoo Lee),전진수(JinSu Jeon) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
The feasibility test was performed to check the possibility of 2-phase flow visualization and water distribution at inside the PEMFC using neutron radiography image technique. It was composed using water and pressured air. From the image, several 2-phase flow patterns were discovered and water fraction was estimated by the reference specimen and image analysis.
중성자 영상법을 이용한 PEM Fuel Cell 내의 물 유동 및 분포 가시화
김태주(TaeJoo Kim),정용미(YongMi Jung),김무환(MooHwan Kim),M. Arif,심철무(CheulMuu Sim),이승욱(SeungWoo Lee),전진수(JinSu Jeon) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
The neutron imaging technique was used to visualize the water movement and distribution at the actual operating PEM Fuel Cells. At this study, we changed the inlet humidity conditions (50 and 100 %) and output power to check the effect of water movement and distribution at the PEM Fuel Cell.