Numerical analysis of natural gas, hydrogen and ammonia fueled solid oxide fuel cell based micro cogeneration units with anodic gas recirculation

被引：2
|
作者：
Bakala, Maciej [1 ,2 ,3 ]
Martsinchyk, Katsiaryna [1 ,2 ,3 ]
Motylinski, Konrad [1 ,2 ]
Kupecki, Jakub [1 ,2 ]
Machaj, Krystian [1 ,2 ,4 ]
机构：
[1] Inst Power Engn, Ctr Hydrogen Technol CTH 2, Augustowka 36, PL-02981 Warsaw, Poland
[2] Inst Power Engn, Mory 8, PL-01330 Warsaw, Poland
[3] Warsaw Univ Technol, Inst Heat Engn, Fac Power & Aeronaut Engn, 21-25 Nowowiejska St, PL-00665 Warsaw, Poland
[4] Wroclaw Univ Sci & Technol, Dept Cryogen & Aerosp Engn, Wroclaw, Poland
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 52卷
关键词：
Solid oxide fuel cell (SOFC); Cogeneration; Recirculation; Hydrogen; Numerical analysis; HEAT-EXCHANGER; SYSTEM; MODEL; STACK; DIR;
D O I：
10.1016/j.ijhydene.2023.06.267
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The energy sector is actively transitioning towards climate-neutral solutions, emphasizing advancements in clean power generation technologies. Cogeneration systems based on solid oxide fuel cells (SOFC) currently exhibit higher electrical efficiencies than conventional plants, but their operation can still be improved. One of the approaches to increase its efficiency is implementing anodic off-gas recirculation. In this work, a numerical model of a 10 kW SOFC installation with anodic gas recirculation was analyzed using Aspen HYSYS software. System fueled with three alternative fuels (natural gas, hydrogen, and ammonia) was tested. In this paper it was proven that anode-off gas recirculation improves the electrical and total efficiency of the system for each fuel type. The cogeneration unit with a SOFC stack can operate safely over a wide range of recirculation ratios without need for additional modifications. Ammonia-fueled units achieve electrical efficiency (55%) higher than hydrogen-based system (47.6%) but lower than installation fueled with natural gas (61.8%). (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：952 / 964
页数：13
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