scholarly journals Basic Characteristics of Gas Turbine-Solid Oxide Fuel Cell Hybrid System with Air Recirculation

2007 ◽  
Vol 73 (730) ◽  
pp. 1385-1392 ◽  
Author(s):  
Daisuke OKAWA ◽  
Naoki SHIKAZONO ◽  
Nobuhide KASAGI
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Basic Characteristics ◽  
Fuel Cell Hybrid

Scaling a Solid Oxide Fuel Cell Gas Turbine Hybrid System to Meet a Range of Power Demand

2009 ◽  
Vol 7 (1) ◽  
Author(s):  
John VanOsdol ◽  
Eric Liese ◽  
David Tucker ◽  
Randall Gemmen ◽  
Robert James
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Simulation Software ◽  
Solid Oxide ◽  
Normal Operation ◽  
Oxide Fuel ◽  
Fuel Cell Hybrid

In recent years there has been significant interest in using the heat generated from the normal operation of a solid oxide fuel cell (SOFC) to supplant the normal combustion process of a gas turbine system. By doing this a gas turbine fuel cell hybrid power generation system is formed. Because the heat produced by a SOFC is utilized by the turbine to produce work, the hybrid system can have an overall system efficiency that greatly exceeds those of either the stand alone SOFC system, or the stand alone gas turbine system. One of the most critical problems that must be addressed in gas turbine fuel cell hybrid technology is temperature control. A hybrid system that is designed to operate efficiently for a given base load may not be easily extended to accommodate peek load. In this paper a simple hybrid system configuration using a standard SOFC and a single compressor-turbine pair is presented. This simple system is used to establish the effect that key configuration parameters have on system temperatures. The configuration model is then scaled over a range of fuel input and power output to show the limitations of the system. The system is modeled using the ASPEN PLUS® simulation software with special modules to calculate fuel cell performance.

Sign in / Sign up

Export Citation Format

Share Document