Author/Authors :
Siracusano، نويسنده , , S. and Baglio، نويسنده , , V. and Briguglio، نويسنده , , N. and Brunaccini، نويسنده , , G. and Di Blasi، نويسنده , , A. and Stassi، نويسنده , , A. and Ornelas، نويسنده , , R. and Trifoni، نويسنده , , E. and Antonucci، نويسنده , , V. and Aricٍ، نويسنده , , A.S.، نويسنده ,
Abstract :
The electrochemical properties of a proton exchange membrane (PEM) stack electrolyzer (9 cells of 100 cm2 geometrical area) were investigated at different temperatures. An amount of H2 of ∼270 l h−1 was produced at 60 A (600 mA cm−2) and 70 °C under 876 W of applied electrical power. The corresponding specific energy consumed in the process was 3.24 Wh·l−1H2. The Faradic and electrical efficiencies were determined. Overall stack efficiencies of 73% and 85%, at 60 A and 70 °C, with respect to the low and high heating value of hydrogen, respectively, were obtained. These results confirmed the successful scale-up of a previous lab-scale device.
Keywords :
PEM electrolyzer , Water electrolysis , Hydrogen production , efficiency , Stack
