About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Martynov Petr Olegovich post-graduate student Gorskaya Tatyana Yurievna candidate of technical sciences, associate 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 Zolotonosov Yacov Davidovich doctor of technical sciences, professor, director E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC «Progress» The organization address: 420137, Russia, Kazan, Chuikova st., 71 |
| Title of the article | Determination of the equivalent diameter of the pipe and intertubular space in the apparatus with a screw heat exchanger made of wire in the form of an ovoid |
| Abstract. | Problem statement. The aim of this work is to calculate the equivalent diameter of the tube and tube space in the heat exchanger, the heat exchange element of which is made by winding followed by laser welding of the wire, the cross section of which has the form of an ovoid. Authors earlier offered three variants of effective devices on the basis of the considered heat exchange elements. Heat exchangers with working channels of cylindrical, conical and spherical shapes. This work is a continuation of the authors research on the creation of compact heat exchangers, large unit capacity. Results. The main result of the study is that the authors were able to calculate the equivalent diameter of the pipe made in the form of a twisted spring channel, the axial section of which is of complex geometric shape. Using elements of differential geometry, the authors were able to analytically present the expression needed to determine the diameter. For this purpose, the equations for determining the surface area of heat exchange and the volume of the pipe space are obtained explicitly. Conclusions. The significance of the results for the construction industry is that heat exchangers, developed by the authors, allow to significantly intensify the process of heat exchange in comparison with existing analogues, which is relevant for heating systems, hot water supply in the creation of housing complexes that meet modern requirements for saving energy and thermal resources. |
| Keywords. | equivalent diameter, hydromechanics, heat exchange, spring-twisted channel, ovoid. |
| For citations: | Martynov P.O., Gorskaya T.Iu., Zolotonosov Ia.D. Determination of the equivalent diameter of the pipe and intertubular space in the apparatus with a screw heat exchanger made of wire in the form of an ovoid // Izvestiya KGASU. 2019. №2(48) P.190-196. |
