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Title: Metal-supported solid oxide fuel cells operated in direct-flame configuration

Metal-supported solid oxide fuel cells (MS-SOFC) with infiltrated catalysts on both anode and cathode side are operated in direct-flame configuration, with a propane flame impinging on the anode. Placing thermal insulation on the cathode dramatically increases cell temperature and performance. The optimum burner-to-cell gap height is a strong function of flame conditions. Cell performance at the optimum gap is determined within the region of stable non-coking conditions, with equivalence ratio from 1 to 1.9 and flow velocity from 100 to 300 cm s -1. In this region, performance is most strongly correlated to flow velocity and open circuit voltage. The highest peak power density achieved is 633 mW cm -2 at 833°C, for equivalence ratio of 1.8 and flow velocity of 300 cm s -1. The cell starts to produce power within 10 s of being placed in the flame, and displays stable performance over 10 extremely rapid thermal cycles. The cell provides stable performance for >20 h of semi-continuous operation.
Authors:
ORCiD logo [1] ;  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
International Journal of Hydrogen Energy
Additional Journal Information:
Journal Volume: 42; Journal Issue: 38; Journal ID: ISSN 0360-3199
Publisher:
Elsevier
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Fossil Energy (FE)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE
OSTI Identifier:
1436994

Tucker, Michael C., and Ying, Andrew S.. Metal-supported solid oxide fuel cells operated in direct-flame configuration. United States: N. p., Web. doi:10.1016/j.ijhydene.2017.07.224.
Tucker, Michael C., & Ying, Andrew S.. Metal-supported solid oxide fuel cells operated in direct-flame configuration. United States. doi:10.1016/j.ijhydene.2017.07.224.
Tucker, Michael C., and Ying, Andrew S.. 2017. "Metal-supported solid oxide fuel cells operated in direct-flame configuration". United States. doi:10.1016/j.ijhydene.2017.07.224. https://www.osti.gov/servlets/purl/1436994.
@article{osti_1436994,
title = {Metal-supported solid oxide fuel cells operated in direct-flame configuration},
author = {Tucker, Michael C. and Ying, Andrew S.},
abstractNote = {Metal-supported solid oxide fuel cells (MS-SOFC) with infiltrated catalysts on both anode and cathode side are operated in direct-flame configuration, with a propane flame impinging on the anode. Placing thermal insulation on the cathode dramatically increases cell temperature and performance. The optimum burner-to-cell gap height is a strong function of flame conditions. Cell performance at the optimum gap is determined within the region of stable non-coking conditions, with equivalence ratio from 1 to 1.9 and flow velocity from 100 to 300 cm s-1. In this region, performance is most strongly correlated to flow velocity and open circuit voltage. The highest peak power density achieved is 633 mW cm-2 at 833°C, for equivalence ratio of 1.8 and flow velocity of 300 cm s-1. The cell starts to produce power within 10 s of being placed in the flame, and displays stable performance over 10 extremely rapid thermal cycles. The cell provides stable performance for >20 h of semi-continuous operation.},
doi = {10.1016/j.ijhydene.2017.07.224},
journal = {International Journal of Hydrogen Energy},
number = 38,
volume = 42,
place = {United States},
year = {2017},
month = {8}
}