공기호흡형 PEMFC 설치각도에 따른 공기극 주변 유동해석 및 성능실험
Numerical and experimental study of an air-breathing PEMFC according to the installation angle
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Abstract : Changes in ambient flow and PEMFC performance were observed depending on the installation conditions of the air-breathing PEMFC. The air-flow and temperature distribution were analyzed numerically of the air surrounding the PEMFC maintained at 40 ℃ in a closed space. It was confirmed that the less flow was formed around the cathode at the lower the installation angle (closer to horizontal). In the experimental work, the highest performance was obtained when the temperature of the PEMFC was 40 ℃ and it was installed vertically. It is predicted that the formation of natural convection due to the temperature difference with the surrounding air caused flow around the cathode and facilitates the supply of oxygen.
Abstract
Abstract : Changes in ambient flow and PEMFC performance were observed depending on the installation conditions of the air-breathing PEMFC. The air-flow and temperature distribution were analyzed numerically of the air surrounding the PEMFC maintained at 40 ℃ in a closed space. It was confirmed that the less flow was formed around the cathode at the lower the installation angle (closer to horizontal). In the experimental work, the highest performance was obtained when the temperature of the PEMFC was 40 ℃ and it was installed vertically. It is predicted that the formation of natural convection due to the temperature difference with the surrounding air caused flow around the cathode and facilitates the supply of oxygen.