Труды Крыловского государственного научного центра (Sep 2020)
Conceptual development of sofc-based power plant with up to 5000w capacity
Abstract
Object and purpose of research. The purpose of this work performed by SET Branch of KSRC was to develop the principal technological layout and main design solutions for a breadboard SOFC-based power plant with the capacity of up to 5000 W. This work relied on existing Russian and international experience in design of SOFC-based power plants. Materials and methods. In-depth review and mathematical analysis of latest Russian and international experience in design of SOFC-based power plants enabled justification of a whole class of promising designs, as well as identification of main approaches to development of breadboard SOFC-based power plant (capacity up to 5000 W) suggested by KSRC SET Branch. Main results. The study analyses calorific processes and design and technological solutions implemented in Russian and foreign SOFC-based power plants. It also suggests a technological layout for a breadboard SOFC-based power plant (capacity up to 5000 W) developed by KSRC SET Branch. Conclusion. The mathematical models developed and verified in this study enabled the analysis of the most efficient SOFC-based power plant design, BlueGen by Ceramic Fuel Cells Limited (CFCL). as well as identification of further ways to the improvement of promising calorific designs for the power plants based on planar SOFCs. This study also investigated the effect of pre-reforming, anode and cathode recirculation and volt-ampere properties of the fuel cell stack upon its weight, size and thermodynamic efficiency. Another result of this work was the development of control algorithms for suggested power plant, with efficiency demonstration of the longest and the most complex among them, involving a number of limitations for startup/shutdown conditions. Finally, the paper explains design principles of 500-5000 W SOFC-based power plant family suggested by KSRC SET Branch.
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