Some aspects of gaseous hydrogen storage and the performance of a 10-kW Polymer Electrolyte Membrane Fuel Cells stack as part of a hybrid power source

Abstract

A 10-kW polymer electrolyte membrane fuel cell (PEMFC) stack was designed and built as part of a hybrid power source to supply a motor glider. The power of the PEMFC stack reached ∼10 kW for the electrical parameters I = 61 A, U = 153 V. The time of operation of the stack under an electrical load close to 10 kW was strongly dependent on the pressure of the hydrogen fuel stored composite tanks, which could be varied from 220 bar for 30 min to 700 bar for 80 min. It was found that the electrical efficiency of the constructed 10-kW PEMFC stack was greater than 50%.