The results of an electrolytic research of convectional mass/heat transfer in a rotational regenerator model are presented. A rotor model consisted of the five corrugated sheets of the two kinds, after assembly of which 300 ducts occurred. They were short and their cross-section was of varied shape and surface areas along the curved axes. The research was carried out both, with and without the baffles of two kinds. The central and side nickel sheets were used as the cathodes for proving the inequality of flow rate of electrolyte along the axis of the rotor. NaOH based electrolyte (1 mol) with equimolar quantities of K3Fe(CN)(6) and K4Fe(CN)(6) was used during the whole experiment. Schmidt number was 1590. Rotation number of: 0, 0.15, 0.20 and 0.25 for Reynolds number in the interval 150-1270, was adjusted. The rate of increase of the transfer coefficient as a result of rotation and the final correlations on the Chilton-Colburn coefficient were stated in power form j(M) = j(M)(Re) at parameter Ro and in the compact form j(M) = j(M)(Re, Ro). The influence of the shape of the baffle on the intensity of the transfer process was proved, which may help in design. (C) 2010 Elsevier Ltd. All rights reserved.