Design features of the generator-absorber reactor of solar power refrigeration plants

Objective. The aim of the study is to determine the design features of the main part of the generator-absorber of solar power refrigeration units of the absorption type reactor - a device where the sorbent saturated with freon is located, and in which thermochemical reactions of desorption and absorption occur during heating and cooling. The study is carried out to identify the principles of a rational device that implements the efficiency of action and the maximum possibility of using the physicochemical properties of the sorbent and refrigerant. Method. The dynamics of the generator-absorber reactor development operating on solid sorbents and ozone-safe refrigerants is analyzed. Result. The designs of reactors used in solar power refrigeration units are considered; advantages and disadvantages, mechanisms of interaction and regulation of internal processes in the thermochemical compressor are identified; prospects for the development of new sorbents and refrigerants, ways to improve the efficiency of reactors and prospects for the development of solar power refrigeration units and units are determined. The article notes the features of application of technical solutions increasing the efficiency of the generator-absorber and solar power refrigeration plant. Conclusion. The increase in the performance of the solar power refrigeration plant is influenced by the following factors: mechanism for regulating mechanical deformations of the working sorbent in the reactor; introduction of new sorbents and search for effective working pairs; application of selective coatings on the outer surface of the reactor heated by the sun; rational focusing of solar energy on the heating elements of the reactor during the day; creation of effective conditions for cooling the reactor surface at night. A compromise design solution is the main task of developers of such solar power thermal transformers for refrigerators, air conditioners, food ice generators, etc.

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