Article
Version 1
Preserved in Portico This version is not peer-reviewed
Influence of Thermoelastic Phenomena on the Energy Conservation in Non-contacting Face Seals
Version 1
: Received: 21 September 2020 / Approved: 22 September 2020 / Online: 22 September 2020 (03:45:41 CEST)
A peer-reviewed article of this Preprint also exists.
Blasiak, S. Influence of Thermoelastic Phenomena on the Energy Conservation in Non-Contacting Face Seals. Energies 2020, 13, 5283. Blasiak, S. Influence of Thermoelastic Phenomena on the Energy Conservation in Non-Contacting Face Seals. Energies 2020, 13, 5283.
Abstract
The purpose of this study was to develop a mathematical model for non-contacting face seals to analyze how their performance is affected by thermoelastic phenomena. The model was used to solve thermal conductivity and thermoelasticity problems. The primary goal was to calculate the values of thermal deformations of the sealing rings in a non-contacting face seal with a flexibly mounted rotor (FMR) for a turbomachine. The model assumes conversion of mechanical energy into heat in the fluid film. The heat flux generated in the fluid film is transferred first to the sealing rings and then to the fluid surrounding them. An asymmetric distribution of temperature within the sealing rings leads to the occurrence of thermal stresses and, consequently, a change in the rings geometry. The model is solved analytically. The distributions of temperature fields for the sealing rings in the cross-sections are calculated using the Fourier-Bessel series as a superficial function of two variables (r,z). The thermoelasticity problems described by the Navier equations are solved by applying the Boussinesq harmonic functions and Goodier’s thermoelastic displacement potential function. The proposed method involves solving various theoretical and practical problems of thermoelasticity in FMR-type non-contacting face seals. The calculated thermal deformations of the sealing rings are used to determine the most important seal performance parameters such as the leakage rate and power loss.
Keywords
mechanical seal; non-contacting face seal; heat transfer; thermal analysis
Subject
Engineering, Mechanical Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment