ELECTRODIFFUSION DIAGNOSTICS OF A MEMBRANE ELECTROLYZER

The method of electrodiffusion diagnostics was used to measure the vec tor field of viscous friction stress at the wall of the flow-type cham ber in a laboratory model of a stack-type membrane electrolyzer. The e lectrochemical sensor was realized on the principle, which enabled us to combine the time-of-flow and amplitude versions of the electrodiffu sion method. Hydrodynamically heterogeneous zones, where the surface v iscous friction differs by more than an order of magnitude, were revea led. The inlet electrolyte jet was found to produce a substantial effe ct on the flow pattern in the electrolyzer chamber. The diagonal arran gement of the inlet and outlet sockets was not optimum during forced e lectrolyte pumping.