Efficiency Evaluation of Solid-Oxide Fuel Cells in Combined Cycle Operations

被引:4
作者
Colson, C. M. [1 ]
Nehrir, M. H. [1 ]
Deibert, M. C. [2 ]
Amin, M. R. [3 ]
Wang, C. [4 ]
机构
[1] Montana State Univ, Dept Elect & Comp Engn, Bozeman, MT 59715 USA
[2] Montana State Univ, Chem & Biol Engn Dept, Bozeman, MT 59717 USA
[3] Montana State Univ, Dept Mech & Ind Engn, Bozeman, MT 59717 USA
[4] Wayne State Univ, Engn Technol Div, Detroit, MI 48202 USA
来源
JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY | 2009年 / 6卷 / 02期
关键词
combined cycle power stations; solid oxide fuel cells; HEAT; OPTIMIZATION; SIMULATION; SYSTEMS;
D O I
10.1115/1.2971174
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Solid oxide fuel cells (SOFCs) are high-temperature, high-efficiency, combustionless electrochemical energy conversion devices that have potential for combined cycle applications. This paper intends to clarify and expand the efficiency discussions related to SOFC when operating in combined cycle (CC) systems. A brief analysis of the first and second thermodynamic laws is conducted and, building upon a previously developed SOFC dynamic model, operating fuel heating values are determined by utilizing the semi-empirical gas phase heat capacity method. As a result, accurate SOFC stack operational simulations are conducted to calculate its efficiency based on actual thermodynamic parameters. Furthermore, an analysis is conducted of a combined SOFC-CC system using dynamic modeling. Simulation results are given, which are intended to aid researchers in evaluating hybrid SOFC-CC generation systems.
引用
收藏
页码:0210061 / 0210067
页数:7
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