東京大学 · 材料科学
カルムブム教授の研究室は、固体酸化物燃料電池（SOFC）を核とした高効率・高信頼性のエネルギー変換システムの開発を主眼としています。特に、燃料の多様性（水素、アンモニア、メタノール、天然ガスなど）を活かした100%燃料利用型のデッドエンドアノード（DEA）構造のSOFCシステムや、高パラメータ蒸気サイクル（ultra-supercritical, A-USC）や超臨界定圧二酸化炭素サイクル（sCO2）と組み合わせた複合サイクルの最適設計を進めています。熱的・エクセอรFilterWhereックス的分析を通じて、エネルギー損失の原因を解明し、実用的かつ効率的なエネルギーソリューションの実現を目指しています。
Figures are computed from collected data and may differ slightly.
In the present study, the effects of the fuel reforming process and bottoming cycle steam parameters on the design point: energy efficiency/power output of large-scale solid oxide fuel cell (SOFC) combined systems are investigated. The fuel reforming processes considered in this study are adiabatic steam reforming (ASR), partial oxidation reforming (POX), and autothermal reforming (ATR). For the bottoming cycles, subcritical (SubC), supercritical (SupC), ultrasupercritical (USC), and advanced ul
The present study deals with performance analyses of solid oxide fuel cell (SOFC) systems combined with various bottoming cycles. The SOFC considered in the study is fueled with natural gas reformed via direct internal reforming by anode gas recirculation. For bottoming cycles, subcritical steam cycle (SubC), supercritical steam cycle (SupC), ultra-supercritical steam cycle (USC), advanced ultra-supercritical steam cycle (A-USC), and the supercritical CO2 cycle (sCO2) are investigated. The resul
The conventional solid oxide fuel cell (SOFC) systems fueled with hydrogen or ammonia always underperform in comparison to the SOFCs fueled with hydrocarbon fuels. This paper deals with the energy and exergy based studies of novel 100% fuel utilization SOFC systems achieved by 100% recycling of anode off-gas (referred to as dead-end anode, DEA). The results show that the energy efficiency of H2 fueled and NH3 fueled SOFC systems can reach efficiencies as high as 67.22 % and 72.52 % LHV, respecti
Solid oxide fuel cells (SOFCs) are known for their fuel flexibility and high energy conversion efficiency. Hydrogen is one of the ideal fuels for SOFC; however, a SOFC system fueled with pure hydrogen or ammonia always underperforms in comparison to those fueled with hydrocarbon fuels. This paper deals with thermodynamic analyses of novel dead-end anode (DEA) SOFC systems. Particularly, the impact of fuel types on the system’s efficiency is systematically studied with hydrogen, ammonia, methanol
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