Dynamic-temperature operation of metal-supported solid oxide fuel cells

JOURNAL OF POWER SOURCES

卷:395

Article

Tucker, Michael C.¹ 

[1] Lawrence Berkeley Natl Lab, Energy Convers Grp, Energy Technol Area, 1 Cyclotron Rd, Berkeley, CA 94720 USA

关键词: Metal-supported;    SOFC;    Dynamic temperature;    Thermal cycling;   

DOI  :  10.1016/j.jpowsour.2018.05.094

来源: Elsevier

【 摘 要 】

A dynamic-temperature operation strategy Is proposed for SOFC systems, in which the cell temperature varies rapidly to match the SOFC stack power output to a dynamic load requirement. It is anticipated that this operation strategy may have benefits for system efficiency, size, and cost for applications with dynamic power load. Metal-supported SOFCs (MS-SOFCs) are operated continuously at 0.7 V while the temperature is varied rapidly between 675 and 800 degrees C or 670 and 720 degrees C. During the initial thermal excursion, the current density increases from 0.82 to 1.95 A cm(-2) in 6.6 min for 675-800 degrees C, and from 1.0 to 1.63 A cm(-2) in 5.4 min for 670-720 degrees C. Cells are subjected to continuous dynamic temperature operation for more than 100 cycles.

【 授权许可】

Free