L R AS Published on Saturday 17 February 2024 - n° 476 - Categories:other methods
Compressed air storage system
Korean scientists have developed a compressed air storage system. It can be used as a combined cooling, heat and power system, supplying heat and energy to solid oxide electrolysis cells for hydrogen generation. It has demonstrated an overall efficiency of
of 121.2% and an over-unit in the range of 100% to 120%.
They proposed combining adiabatic compressed air storage (A-CAES) and large-scale solid oxide electrolysis (SOEC) cells for green hydrogen production via excess energy from wind and solar PV installations.
A-CAES can store the heat of compression or compressed air in thermal energy storage (TES) and air storage tanks, respectively, and then release the heat and compressed air for power generation.
SOECs use a solid oxide - or ceramic - electrolyte to produce hydrogen and synthetic fuel (CO-H2) from a mixture of water and carbon dioxide or oxygen from carbon dioxide, respectively.
PV Magazine of 15 February 2024
