Intensification of Heat Transfer Processes in Film-Type Devices
Abstract: The article analyzes the existing methods of heat transfer intensification, specifies the main conditions for choosing the optimal intensification method, analyzes the ways to improve the heat transfer surfaces. Significant intensifying factors in film-type apparatuses have been identified and studied, namely, the effect of wave formation; the zone of the input section, which depends on the droplet-forming device; the microstructure of the pipe surface, the most effective type of rolling on the outer surface of the pipes has been determined. Recommendations are given on the choice of a method for intensifying heat transfer. A brief summary of modern concepts of heat transfer surfaces shows that the search for ways to optimize processes and increase the efficiency of heat transfer requires a comprehensive systemic consideration of both the macro- and microstructure of the surface, and the conditions of interaction of the surface with the coolant in specific problems. It should be noted that when choosing for practical application one or another method of intensifying heat transfer, it is necessary to take into account not only the efficiency of the surface itself, but also the manufacturability of its manufacture, the manufacturability of the assembly of the heat exchanger, strength requirements, surface contamination, operation features, etc.
Keywords: intensification, heat exchange surface, micro- and macrostructure, film devices, wave formation, artificial roughness, inlet section.
Pages: 45-53.
For citation: Savich, D. V.; Dolgov, N. V. Intensification of Heat Transfer Processes in Film-Type Devices. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2021. – Issue 2021-5(151) Engineering systems and man-made safety. – Р. 45-53. – URL: https://donnasa.ru/publish_house/journals/vestnik/2021/2021-5(151)/st_08_savich_dolgov.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2021-5 (151)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture