EFFECTS OF MECHANICAL VIBRATIONS ON ICE FORMATION ON EVAPORATOR OF AIR HEAT PUMP

The analysis of the reasons for insignificant spread air heat pumps in countries with a cold winter period is carried out. Problems arising exchanger outdoor unit pump during operation heating mode are indicated. existing methods anti-icing units considered, and their effectiveness demonstrated, taking into account cost electricity problem utilizing condensate. possibility removing ice from evaporators using method high-frequency mechanical vibrations has been investigated. Laboratory equipment designed tested experimental research oscillations structures manufactured by an industrial method. use pumps, where fight against frostbite out vibrations, considered. Investigations different types coolant means on surface have Methods fastening piezoceramic emitters to various designs A comparative materials used design evaporators, comparison acoustic properties thermal conductivity, recommendations selection material further improve efficiency destruction given. Ways increasing degree cleaning identified, given combat exchangers under conditions at low ambient temperatures