EXPERIMENTAL RESEARCHES OF HEAT TRANSFER AND PRESSURE DROP IN FLUIDIZED BED COOLING TOWER OF VARIOUS CONFIGURATION

The schematics of heat and mass transfer apparatus are worked out with the fluidized beds attachment "gas - liquid - solid body" for the evaporated cooling of environments (evaporative coolers of water (cooling towers CTW) and evaporative coolers of air (direct and indirect type coolers). The multifunction solar refrigeration systems and air conditioning system are worked out on the based on absorbing open-cycle with the indirect regeneration of absorbent. In the basic contours of drainage of air and cooling of environments of the solar systems heat and mass transfer apparatus are used with fluidized beds. Decisions for heat and mass transfer apparatus with the fluidized beds "gas - liquid - solid body" have been worked out in a few basic variants, in particular, with possibility of heat-exchanger placing directly in the volume of the fluidized beds. It is the evaporated air coolers of indirect type (IECg) and evaporated liquid coolers of indirect type (IECw) of cool contour of the solar systems; absorber on the air flow and desorber-regenerator of absorbent of contour of drainage of outward air of the solar systems. The cycle of experimental researches of fluidizing bed "gas - liquid - solid body" features was executed both for a variant with the free fluidized bed of attachment and in a variant with placing of heat-exchanger directly in the volume of the fluidized bed of attachment. Influence of height of stationary layer of elements, geometrical parameters of distributive grate was studied, initial parameters of current of air, entering in the heat and mass transfer apparatus. On the basis of cycle of theoretical and experimental researches practical recommendations were proposed on determination of optimal geometrical parameters of basic elements and regime parameters of heat and mass transfer apparatus operation in autonomous regime and in composition with multifunction solar absorbing systems.