Arseneva O. Fundamentals of plate heat exchanger's design for chemical industry

The object of investigation: is the hydrodynamic and heat transfer processes in the channels of plate heat exchangers for heat exchange networks. The goal of investigation: is the creation of theoretical basics for the high-efficient plate heat exchangers design for heat exchange networks retrofitting targeting the energy saving heat energy utilization. The investigation techniques: the theoretical approaches of the investigation are based on fundamentals of heat transfer and hydrodynamics; the techniques of differential calculations; the experimental studies were carried out according the original techniques and using CFD calculations and software products Comsol, ANSYS, Unisim Design, Mathcad. Theoretical and practical findings of the investigation: are in the reasonable selection of plate heat exchangers' design with intensified heat transfer surface. The technique of fouling thermal resistance calculation in the unit depending on the operation time allows considering this parameter under the design calculations of heat exchanger and to improve the maintenance system of the existing equipment. The novelty of the investigation: is in development of the methodological and procedural approach, which taking into account the fluid turbulent movement, will allow to forecast the heat-and-hydraulic parameters of the unit, what justifies the reasonability of enhancement of PHE's geometric parameters and its plates with intensified heat transfer processes. The level of implementation: the investigation results were implemented in several Ukrainian industrial enterprises, and also are applied in academic curriculum of NTU "KhPI" for teaching on specialty 8.05020202 "Computational integrated technological processes and productions". The field of application: chemical industry, municipal engineering.