Influence of Electrohydrodynamic Flows on the Intensification of the Heat- and Mass Trasfer Processes. Part 2. One- and Multistage Electrohydrodynamic Pumps

The one-stage electrohydrodynamic (EHD) pumps with electrodes “a diaphragm – a plate hole” and wire are studied. It is established that the help of flow-limiting diaphragms, pump characteristics can be significantly improved. indicated in main multi-stage EHD pumps, it preferable to use lattice-type made bare perforated insulated wires. Optimal geometrical parameters electrodes, dielectric coatings, interelectrode distances determined. influence electrophysical properties working medium galvanically isolated high voltage sources on performance multistage considered. Possible ways reduce mutual steps its output shown. Formulas have been obtained reliably fully reflect physical nature results studies pumps. was found out organosilicon liquid has best considering stability under an electric field, micro-discharges, temperature, recommended as coolant heat exchangers. reasons for deterioration during prolonged operation identified, these factors noted.