模型研究:通过甲烷内部重装来冷却以柴油整气体为燃料的固体氧化物燃料电池(英文)

【摘要】：In this paper a system combining a diesel reformer using catalytic partial oxidation (CPOX) with the Solid Oxide Fuel Cell (SOFC) for Auxiliary Power Unit (APU) applications is modeled with respect to the cooling effect provided by internal reforming of methane in anode gas channel. A model mixture consisting of 80% n-hexadecane and 20% 1-methylnaphthalin is used to simulate the commercial diesel. The modelling consists of several steps. First, equilibrium gas composition at the exit of CPOX reformer is modelled in terms oxygen to carbon (O/C) ratio, fuel utilization ratio and anode gas recirculation. Second, product composition, especially methane content, is determined for the methanation process at the operating temperatures ranging from 500 ℃ to 520 ℃. Finally, the cooling power provided by internal reforming of methane in SOFC fuel channel is calculated for two concepts to increase the methane content of the diesel reformate. The results show that the first concept, operating the diesel reformer at low O/C ratio and/or recirculation ratio, is not realizable due to high probability of coke formation, whereas the second concept, combining a methanation process with CPOX, can provide a significant cooling effect in addition to the conventional cooling concept which needs higher levels of excess air. 【作者单位】： Engler-Bunte-Institute——Division
【关键词】： diesel reformate methanation internal reforming cooling model solid oxide fuel cell-auxiliary power unit
【基金】：Supported by the Ministry of the Environment, Climate Protection and the Energy Sector, Baden-Wuettermberg
【分类号】：TM911.4
【正文快照】： 1 INTRODUCTION Climatic change is confronting economy and so- ciety with major challenges on a global scale. Efficient energy production and reduced energy consumption contribute substantially not only to climate protection, but also to the shortage of t

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