Effect of pressure variation on power density and efficiency of solid oxide fuel cells

被引：24

作者：

Henke, Moritz ^{[1
]}

Willich, Caroline ^{[1
]}

Westner, Christina ^{[1
]}

Leucht, Florian ^{[1
]}

Leibinger, Robert ^{[1
]}

Kallo, Josef ^{[1
]}

Friedrich, K. Andreas ^{[1
,2
]}

机构：

[1] German Aerosp Ctr DLR, Inst Tech Thermodynam, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Thermodynam & Thermal Engn, D-70550 Stuttgart, Germany

来源：

ELECTROCHIMICA ACTA | 2012年 / 66卷

关键词：

Solid oxide fuel cell; Pressure; Power density; Efficiency; SOFC; Pressurised SOFC; DOPED ZIRCONIA ELECTROLYTE; SOFC; PERFORMANCE; SYSTEM; POLARIZATION; TECHNOLOGY;

D O I：

10.1016/j.electacta.2012.01.075

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper describes the effect of enhanced operating pressure on power density and efficiency of SOFC. Experiments were carried out with planar anode-supported cells which were operated at 1073 K with an anode gas mixture of 30% H-2 and 70% N-2. Pressure was varied between 1.35 and 8 bar. Points of polarisation curves were measured at steady state with fuel utilisation varying from 30 to 50%. Power density and efficiency of the fuel cell were analysed at different operating points. Results show that power density can be increased significantly (an increase up to 100% was measured) at constant efficiency. An increase in efficiency in the range of 10% is achievable if power density is kept constant. For all operating conditions, pressure effects show logarithmic behaviour. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：158 / 163

页数：6

共 21 条

[1] An internal reformer for a pressurised SOFC system [J].

Agnew, G. D. ;

Bernardi, D. ;

Collins, R. D. ;

Cunningham, R. H. .

JOURNAL OF POWER SOURCES, 2006, 157 (02) :832-836

[2] Spatial Distribution of Electrochemical Performance in a Segmented SOFC: A Combined Modeling and Experimental Study [J].

Bessler, W. G. ;

Gewies, S. ;

Willich, C. ;

Schiller, G. ;

Friedrich, K. A. .

FUEL CELLS, 2010, 10 (03) :411-418

[3] SOFC technology development at Rolls-Royce [J].

Gardner, FJ ;

Day, MJ ;

Brandon, NP ;

Pashley, MN ;

Cassidy, M .

JOURNAL OF POWER SOURCES, 2000, 86 (1-2) :122-129

[4] Effects of pressurization on cell performance of a microtubular SOFC with Sc-doped zirconia electrolyte [J].

Hashimoto, S. ;

Nishino, H. ;

Liu, Y. ;

Asano, K. ;

Mori, M. ;

Funahashi, Y. ;

Fujishiro, Y. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (06) :B587-B591

[5] Power Generation Properties of Microtubular Solid Oxide Fuel Cell Bundle Under Pressurized Conditions [J].

Hashimoto, S. ;

Liu, Y. ;

Asano, K. ;

Yoshiba, F. ;

Mori, M. ;

Funahashi, Y. ;

Fujishiro, Y. .

JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY, 2011, 8 (02)

[6] Influence of Pressurisation on SOFC Performance and Durability: A Theoretical Study [J].

Henke, M. ;

Kallo, J. ;

Friedrich, K. A. ;

Bessler, W. G. .

FUEL CELLS, 2011, 11 (04) :581-591

[7] Characteristics of anodic polarization of solid oxide fuel cells under pressurized conditions [J].

Kikuchi, R ;

Yano, T ;

Takeguchi, T ;

Eguchi, K .

SOLID STATE IONICS, 2004, 174 (1-4) :111-117

[8]

Larminie J., 2018, Fuel Cell Systems Explained

[9] Operating characteristics of a 5 kW class anode-supported planar SOFC stack for a fuel cell/gas turbine hybrid system [J].

Lim, Tak-Hyouny ;

Song, Rak-Hyun ;

Shin, Dong-Ryul ;

Yang, Jung-Il ;

Jung, Heon ;

Vinke, I. C. ;

Yang, Soo-Seok .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (03) :1076-1083

[10]

Lindstrom P.J., 2010, NIST CHEM WEBBOOK NI

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