Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2001.06d
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- Pages.703-707
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- 2001
Performance Analysis of SOFC/MGT Hybrid System
- Kim, Jae-Hwan (Turbo and Power Machinery Research Center, Seoul National University) ;
- Suzuki, Kenjiro (Dept. of Mechanical Engineeringm, Kyoto University)
- Published : 2001.06.27
Abstract
A performance analysis of a SOFC/MGT hybrid system has been carried out for concept design. Thermo-dynamic models for each component being able to describe electrochemical characteristics and heat and mate-rial balance are proposed. Estimated is the power capacity of a SOFC suitable for the hybrid operation with a 5kW class MGT. Effects of current density and operating pressure are also investigated. Electric efficiency showed weak dependence on operating pressure and current density. It is desirable that the SOFC operates at high current density in manufacturing cost's point of view though operating with high current density slightly decreases the electric efficiency find specific power.
Keywords
- Solid Oxide Fuel Cell (SOFC);
- Micro Gas Turbine (MGT);
- SOFC/MGT hybrid cycle;
- Electric efficiency;
- Cell area