Design Performance Analysis of Solid Oxide Fuel Cell/Gas Turbine Hybrid Systems for Various Gas Turbine Pressure Ratios

가스터빈 압력비 변화에 따른 고체 산화물 연료전지/가스터빈 하이브리드 시스템의 설계 성능 해석

This study presents analysis results for the hybrid system combining solid oxide fuel cell and gas turbine. Two different system layouts(an ambient pressure system and pressurized system) are considered and their design performance are comparatively investigated taking into account critical design factor, the most critical parameter such as turbine inlet temperature, gas turbine pressure ratio, temperature difference at the fuel cell and fuel cell operating temperature are considered as design constraints. Performance variations according to system layout and design parameters are examined in energetic view point.