Experimental Results of a 10/40 kW-Class Reversible Solid Oxide Cell Demonstration System at Forschungszentrum Jülich

In 2018, a 5/15 kW DC reversible solid oxide cell system was developed and successfully operated by Forschungszentrum Jülich. Based on the knowledge gained with this first system, an optimized in power class of 10/40 AC afterwards 2019 that uses well-established Integrated Module. This module consists four 20-layer sub-stacks, two heat exchangers five heating plates. It represents main components system. The basic layout retained general from previous adjusted accordance higher level, as well supporting balance plant components. demonstrator its results are described. During experimental evaluation fuel mode, could provide electrical output 1.7 to 13 . maximum efficiency 63.3% based lower value (LHV) be reached at 10.4 operating point also analyzed regarding temperature distribution stack losses. electrolysis 71.1% achieved input −49.6 At point, about 11.7 Nm 3 h −1 hydrogen generated. losses for mode. Finally, potential optimization through integration mode is experimentally evaluated discussed.