4415 空気再循環を行うガスタービン・固体酸化物形燃料電池ハイブリッドシステムの基本特性(J11-2 SOFC,J11 小型・分散エネルギー技術)

概要

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A hybrid system composed of solid oxide fuel cell (SOFC) and gas turbine (GT) is expected to achieve very high efficiency over 60-70% LHV. However, in order to operate the system at high efficiency and high power density which leads to cost reduction, it is important to manage the whole SOFC temperature as uniform as possible. Cathode air recirculation is one of the simplest approaches to improve the temperature distribution of the cell. In the present study, numerical simulation of the air recirculation hybrid system was carried out. All the system components are modeled, and the effects of recirculation ratio on the total system performance are evaluated. Furthermore, comparison betweenn the ejector system and the blower system, evaluation of partial load performance are investigated.
社団法人日本機械学会の論文
2006-09-15