The article examines existing air recovery schemes, aerodynamic and thermodynamic processes that occur when air flows are mixed in recuperators of various types, provides a critical analysis of the design features of recuperators of various types, as well as opportunities for improvement and development in this area. Subject: aerodynamic and thermodynamic processes occurring in air recuperators. Materials and methods: study of existing air recovery schemes based on scientific articles, publications, patents, scientific literature, as well as regulatory legislation in this area. Results: results were obtained on air recovery schemes, technical characteristics, technological and design features, heat exchange efficiency, as well as the efficiency of various types of recuperators. Conclusions: a critical analysis of existing air recovery systems in heating and ventilation systems of buildings and structures was carried out, the level of efficiency of these systems, as well as the possibility of improving and developing air recuperators of the most promising types.
air recovery, aero-, thermo-, thermodynamic processes, improvement
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