| CPC H01M 8/12 (2013.01) [C25B 1/04 (2013.01); C25B 15/021 (2021.01); C25B 15/027 (2021.01); G05D 23/19 (2013.01); G05D 23/1951 (2013.01); G05D 23/30 (2013.01); H01M 8/04701 (2013.01); H01M 2008/1293 (2013.01)] | 16 Claims |
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1. A solid oxide electrolyzer cell (SOEC) system, comprising:
a hotbox having an air input and a steam input;
solid oxide electrolyzer cells located in the hotbox;
a plurality of heaters located in the hotbox, wherein the plurality of heaters comprise an air heater configured to heat air provided from the air input into the hotbox, a steam heater configured to heat steam provided from the steam input into the hotbox, and hotbox heaters configured to heat the hotbox; and
a controller configured to: receive a target operating temperature; receive a readback temperature value; and output a plurality of temperature setpoint commands in which a temperature setpoint command is output to each of the plurality of heaters,
wherein the hotbox heaters include a top hotbox heater, a bottom hotbox heater, and a middle hotbox heater located between the top hotbox heater and the bottom hotbox heater, and wherein the hotbox heaters are arranged in a stack.
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