Thermal modeling of a solid oxide fuel cell and micro gas turbine hybrid power system based on modified LS-SVM

2011 ◽  
Vol 36 (1) ◽  
pp. 885-892 ◽  
Author(s):  
Xiao-Juan Wu ◽  
Qi Huang ◽  
Xin-Jian Zhu
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Thermal Modeling ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Power System ◽  
Micro Gas Turbine ◽  
Hybrid Power

Detailed Performance Analysis of a Solid Oxide Fuel Cell: Micro Gas Turbine Hybrid Power System

Volume 3 ◽  
2004 ◽  
Author(s):  
Tae Won Song ◽  
Jeong L. Sohn ◽  
Jae Hwan Kim ◽  
Tong Seop Kim ◽  
Sung Tack Ro ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Power System ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Power System ◽  
Micro Gas Turbine ◽  
Hybrid Power

Performance of a solid oxide fuel cell (SOFC) can be enhanced by converting thermal energy of its high temperature exhaust gas to mechanical power using a micro gas turbine (MGT). A MGT plays also an important role to pressurize and warm up inlet gas streams of the SOFC. Performance behavior of the SOFC is sensitively influenced by internal constructions of the SOFC and related to design and operating parameters. In case of the SOFC/MGT hybrid power system, internal constructions of the SOFC influence not only on the performance of the SOFC but also on the whole hybrid system. In this study, influence of performance characteristics of the tubular SOFC and its internal reformer on the hybrid power system is discussed. For this purpose, detailed heat and mass transfer with reforming and electrochemical reactions in the SOFC are mathematically modeled and their results are reflected to the performance analysis. Effects of different internal constructions of the SOFC system and design parameters such as current density, recirculation ratio, fuel utilization factor, and catalyst density in internal reformer on the system performance are investigated and, as a result, some guidelines for the choice of those parameters for optimum operations of the SOFC/MGT hybrid power system are discussed.

Performance Analysis of Methanol Fueled Marine Solid Oxide Fuel Cell and Gas Turbine Hybrid Power System

2010 ◽  
Vol 34 (8) ◽  
pp. 1040-1049
Author(s):  
Sae-Gin Oh ◽  
Tae-Woo Lim ◽  
Jong-Su Kim ◽  
Byung-Lea Kil ◽  
Sang-Kyun Park ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Power System ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Power System ◽  
Hybrid Power

Analysis of a pressurized solid oxide fuel cell–gas turbine hybrid power system with cathode gas recirculation

2013 ◽  
Vol 38 (11) ◽  
pp. 4748-4759 ◽  
Author(s):  
Dang Saebea ◽  
Yaneeporn Patcharavorachot ◽  
Suttichai Assabumrungrat ◽  
Amornchai Arpornwichanop
Keyword(s):  
Fuel Cell ◽  
Power System ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Gas Recirculation

Parametric Studies for a Performance Analysis of a SOFC/MGT Hybrid Power System Based on a Quasi-2D Model

2004 ◽  
Author(s):  
Tae Won Song ◽  
Jeong L. Sohn ◽  
Jae Hwan Kim ◽  
Tong Seop Kim ◽  
Sung Tack Ro ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Power System ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
2D Model

Solid oxide fuel cell / micro gas turbine (SOFC/MGT) hybrid power system has been theoretically demonstrated that it can achieve higher thermal efficiency than any other power generation systems. To understand performance characteristics of the SOFC/MGT hybrid power system, it is necessary to analyze sensitivities of operating and design parameters on its performance. In this study, a quasi-2D model for the mathematical modeling of a tubular type indirect internal reforming solid oxide fuel cell (IIR-SOFC) is proposed and applied to a performance analysis of a SOFC/MGT hybrid power system. Using this model, temperature distributions along the longitudinal direction of the IIR-SOFC, which cannot be predicted by the lumped model, are calculated. In addition, sensitivities of parameters governing fuel cell performance such as current density, fuel utilization factor, steam-carbon ratio and parameters governing gas turbine performance such as pressure ratio, turbine inlet temperature, adiabatic efficiencies of compressor/turbine, and heat exchange effectiveness of the recuperator on the performance of the SOFC/MGT hybrid power system are investigated. Results in this study show how a quasi-2D model can improve accuracy of the performance analysis and its implementation to the performance analysis with discussion about sensitivities of design and operating parameters to the performance of the SOFC/MGT hybrid power system.

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