Szczegóły publikacji
Opis bibliograficzny
Energy and exergy analyses of solid oxide fuel cell systems operated with pure hydrogen / Selvam K., Komatsu Y., ŚCIĄŻKO A., Kaneko S., Shikazono N. // W: ECOS 2020 : proceedings of the 33rd international conference on Efficiency, Cost, Optimization, Simulation and environmental impact of energy systems : Osaka, Japan, 29 June - 3 July 2020 / eds. Yokoyama R., Amano Y. — Osaka : ECOS 2020 Local Organizing Committee, 2020. — ISBN: 978-1-7138-1406-1. — S. 1092-1103. — Bibliogr., Abstr. — A. Ściążko - dod afiliacja: University of Tokyo
Autorzy (5)
- Selvam K.
- Komatsu Yosuke
- AGHŚciążko Anna
- Kaneko Shozo
- Shikazono Naoki
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 131097 |
|---|---|
| Data dodania do BaDAP | 2020-11-24 |
| Rok publikacji | 2020 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Konferencja | International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems 2020 |
Abstract
In the present study, solid oxide fuel cell (SOFC) systems with pure hydrogen as a fuel are investigated. It is generally known that a SOFC fed with hydrogen performs much lower efficiency than the SOFC fueled with hydrocarbon fuels. This is due to the facts that hydrogen has a low Gibbs energy to enthalpy ratio and that hydrogen-fueled SOFC does not require an endothermic reformer, which results in a large amount of waste heat. In addition, a large amount of airflow is required to cool the SOFC stack, thereby it increases the parasitic loss of the system. This study evaluates a dead-end anode loop (DEA) SOFC system, in which the system achieves fuel utilization of 100% with the complete recirculation of the anode off-gas. A detailed thermodynamic analysis is carried out for a hydrogen-fueled SOFC system. The results are compared with the conventional SOFC system without fuel recirculation. It is shown that the efficiency of the single-stage SOFC system with DEA reaches 66.45% LHV, which is 9.8 percentage points more efficient than the conventional single-stage SOFC system. In addition to the performance evaluation, detailed exergy balance study is performed to understand the major irreversibilities. © ECOS 2020.All right reserved.
