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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.Bagoutdinova A.G. – candidate of technical sciences E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zolotonosov Ya.D. – 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 Knyazeva I.A. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Vyatka State University The organization address: 610000, Russia, Kirov, Moscovskaya st., 36
Title of the articleHeat exchangers of the «pipe in pipe» type with the internal coil spring-twisted channel
Abstract.Heat exchangers with coil tubes for constructive technology and performance exceed straight tube heat exchangers, used in various industries. The advantages of coil heat exchangers are its compact size, relatively simple compensation temperature deformation and a higher rate of heat transfer compared to the straight tube heat exchangers. This paper presents a compact heat exchanger of type «pipe in pipe» with an internal coil spring-twisted channel, and the equations describing the heat exchange surface of the coil, written in vector-parametric form using fundamental aspects of analytical and differential geometry. By varying the parameters in the equation of heat transfer surface coil, it is possible to investigate and to optimize the internal geometry of the channel. In order to test the adequacy and visualize the equation a program was written, the curves and surfaces using a software package Matlab were constructed. A mathematical model and a computer program described in the article can be used in the development of software for computer control technology, process manufacturing coiled spring-twisted channels.
Keywords.Heat transfer elements, the heat exchange surface, the mathematical model, helix.
For citations:Bagoutdinova A.G., Zolotonosov Ya.D., Knyazeva I.A. Heat exchangers of the «pipe in pipe» type with the internal coil spring-twisted channel // Izvestiya KGASU. 2013. №1(23) P.120-124.


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