SYSTEM FOR REGULATING THE TEMPERATURE AND PRESSURE OF A HIGH-TEMPERATURE ELECTROLYSER (SOEC) REVERSIBLY OPERATING AS A FUEL CELL STACK (SOFC)

摘要

The invention relates to a system able to operate reversibly as an SOFC fuel-cell stack or as an SOEC electrolyser. According to the invention, a bypass line or circuit is provided in order to divert if needs be some of the hot gases issued from the chambers referred to as oxygen chambers (anodic chambers in SOEC mode, cathodic chambers in SOFC-stack mode) as this will cool the heat exchanger provided in the circuit through which the oxygen flows.