Issue |
E3S Web Conf.
Volume 124, 2019
International Scientific and Technical Conference Smart Energy Systems 2019 (SES-2019)
|
|
---|---|---|
Article Number | 05069 | |
Number of page(s) | 4 | |
Section | Additional papers | |
DOI | https://doi.org/10.1051/e3sconf/201912405069 | |
Published online | 10 February 2020 |
Determination of the sediment thickness on the heat-exchange surfaces by free vibration method
1
Kazan State Power Engineering University, 51, Krasnoselskaya st., Kazan, Russia
2
SE «Kazakov R.B.», 105/74, Dekabristov st., Kazan, Russia
3
LLC «TAIF-NK AZS», 5/19, Astronomicheskaya st., Kazan, Russia
* Corresponding author: evgeniya-izmailova@yandex.ru
Sediments on the heat exchangers surfaces reduce the heat transfer coefficient and heat exchange efficiency, and lead to significant energy losses. The paper discusses the method of express control of the sediment thickness on heat-exchange surfaces. The method is based on the analysis of attenuation of free oscillations parameters of the controlled product. Studies were conducted on models of the heat-exchange equipment surface, namely steel plates of 400 mm long, 160 mm wide and 2 mm thick, with different sediments thicknesses of 0, 1.0, 1.5, 2.0, 2.5 mm. The Wilcoxon’s rank sum test was used to determine the dynamics of the spectra changes. Studies have shown that the free vibration method allows one to determine not only the presence of deposits on the heat-exchange surfaces, but also their thicknesses.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.