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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Krutova Iraida Alexandrovna process engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Association «Vyatka Laser Innovation and Technological Center» The organization address: 610004, Russia, Kirov, Zavodskaya st., 1 Zolotonosov Yakov Davidovich doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articlePipe-in-pipe coil heat exchangers based on spring-twisted channels
Abstract.Problem statement. The aim of the study of this work is to carry out calculations of coil heat exchangers of the pipe-in-pipe type with a varying bend radius of a helical spiral based on spring-twisted channels and to evaluate the energy efficiency of such devices. Results. The main results of the study consist in the fact that during the course of the work the authors developed an algorithm for calculating of coil heat exchangers of the pipe-in-pipe type with a varying bending radius of a helical spiral based on spring-twisted channels, implemented in the MATLAB system, determined the geometric dimensions and thermo-hydrodynamic parameters of coil apparatuses. Conclusions. The significance of the results obtained for the construction industry lies in the possibility of applying for the technological needs of modern, more efficient and compact heat exchange equipment and the rationale for this choice. Therefore, with equal initial data, conical heat exchangers based on spring-twisted channels are more efficient compared to conical and cylindrical coils with a heat exchanger element in the form of a smooth pipe, since they have a smaller heat exchange surface to achieve the necessary thermo-hydrodynamic indicators.
Keywords.heat transfer, heat exchanger, spring- twisted channel, coil, screw pipe.
For citations:Krutova I.A., Zolotonosov Y.D. Pipe-in-pipe coil heat exchangers based on spring-twisted channels // Izvestiya KGASU. 2019. №4(50) P.297-304.


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