Fabrication and operation of a 1 kW class anode-supported flat tubular SOFC stack
✍ Scribed by Tak-Hyoung Lim; Jae-Lyang Park; Seung-Bok Lee; Seok-Joo Park; Rak-Hyun Song; Dong-Ryul Shin
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 877 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0360-3199
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✦ Synopsis
A 1 kW class anode-supported flat tubular SOFC stack for intermediate temperature (700e800 C) operation was fabricated and operated in this study. For this purpose, we fabricated anode-supported flat tubular cells by optimization of the current collecting method and the induction brazing process. After that, we designed a compact fuel and air manifold by adopting a simulation technique to uniformly supply fuel and air gas into the stack and a unique seal and insulation method to make a more compact stack. To assemble the stack, the prepared anode-supported flat tubular cells with an effective electrode area of 90 cm 2 were connected in series to 30 bundles, in which one unit bundle consists of two flat tubular cells connected in parallel. The performance of the stack in 3% humidified H 2 and air at 750 C showed a maximum electrical power of 921 W (fuel utilization ratio ¼ 25.2%).