Closed Loop Regenerative HT-PEM Fuel Cell System

A shared activity, funded by TDE and SRE-CTP (Greek Task Force Programme activity 3008), successfully developed a closed loop regenerative fuel cell system (RFCS) and demonstrated its operational capability. 

The technology is based on a high temperature proton exchange membrane (HT-PEM) for the fuel stack and PEM technology for the high-pressure electrolyser stack. The results provided an invaluable insight into regenerative fuel cell technology, realising a major milestone, and pioneering the field by successfully demonstrating:

• High temperature fuel cell operations on pure oxygen

• Simultaneous storage of hydrogen and oxygen

• Closed loop operation where electrolyser storage gases are used in the fuel cell

•  Steep start-up/shut downs

• Autothermal electrolyser operation

• Two-phase water-cooling loop on the fuel cell stack