Operational characteristics of high-pressure, high- efficiency water-hydrogen-electrolysis

摘要

After more than 5000 h of operation of the 100-kW-pilot-Electrolyzer developed by the Gesellschaft fur Hochleistungselektrolyseure zur Wasserstofferzeugung mbH (GHW), the experience accumulated so far allows for The scale up to the megawatt size of this high pressure electrolysis. Several operational concepts ranging from constant Current long time tests over solar photovoltaic energy storage to subsecond compensation of power plant network Fluctuations have been successfully simulated. The responses of the main system parameters during these simulations Are described. For partial load operation, the normally increased hydrogen percentage in the produced oxygen has Been stabilized by a special lye circulation control