촉매유효도 상관식에 기반한 마이크로 채널형 수증기/메탄 개질기의 간략화된 1차원 해석모델의 개발
Development of Simplified One-dimensional Model for Microchannel Steam/Methane Reformers based on Catalyst Effectiveness Factor Correlations
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초록
In this study, an efficient one-dimensional model was developed for predicting microchannel steam/methane reformerswith thin washcoat catalyst layers with a focus on low-pressure reforming conditions suitable for distributed hydrogen productionsystems for fuel cell applications. The governing equations for steam/methane mixture gas flowing through the microchannel reformerwere derived considering the species conservation with reforming reactions and energy conservation with external convective heatsupply. The reaction rates for the developed model were simply determined through the catalyst effectiveness factor correlationsinstead of performing complicated calculations for the steam/methane reforming process occurring inside the washcoat catalystlayers. The accuracy of the developed was verified by comparing the results obtained herein with those obtained by the detailedcomputational fluid dynamics calculation for the same microchannel reformer.
Abstract
In this study, an efficient one-dimensional model was developed for predicting microchannel steam/methane reformerswith thin washcoat catalyst layers with a focus on low-pressure reforming conditions suitable for distributed hydrogen productionsystems for fuel cell applications. The governing equations for steam/methane mixture gas flowing through the microchannel reformerwere derived considering the species conservation with reforming reactions and energy conservation with external convective heatsupply. The reaction rates for the developed model were simply determined through the catalyst effectiveness factor correlationsinstead of performing complicated calculations for the steam/methane reforming process occurring inside the washcoat catalystlayers. The accuracy of the developed was verified by comparing the results obtained herein with those obtained by the detailedcomputational fluid dynamics calculation for the same microchannel reformer.
참고문헌 (22)
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