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Polymer Science, Series D
Published in: Polymer Science, Series D 1/2023

01-03-2023

The Influence of Diurnal and Seasonal Variations of Relative Humidity and Temperature on Coal–Plastic Moisture Saturation in Open Climatic Conditions

Authors: V. G. Salnikov, O. V. Startsev, M. P. Lebedev, M. M. Kopyrin, Yu. M. Vapirov

Published in: Polymer Science, Series D | Issue 1/2023

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Abstract

This paper presents the study of the mass variation of the aviation-intended epoxy coal–plastic plates during 6 years of exposure in the warm humid climate of Sochi, on an open area, under a canopy, and in a jalousie booth. We show that the surface temperature of the samples under the solar radiation influence overheats up to 30°C, causing a relative humidity decrease in air near the surface by 30%. Seasonal fluctuations of the air relative humidity entail sample mass fluctuations; we approximated them by the Fickian moisture-transfer model, taking into account destruction losses during the photo-oxidation under open climatic conditions. We performed a simulation making it possible to predict, with good accuracy, the temperature and humidity regimes of the coal–plastic surface and to determine the seasonal moisture-content fluctuations against the background of the destruction mass losses.
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Metadata
Title
The Influence of Diurnal and Seasonal Variations of Relative Humidity and Temperature on Coal–Plastic Moisture Saturation in Open Climatic Conditions
Authors
V. G. Salnikov
O. V. Startsev
M. P. Lebedev
M. M. Kopyrin
Yu. M. Vapirov
Publication date
01-03-2023
Publisher
Pleiades Publishing
Published in
Polymer Science, Series D / Issue 1/2023
Print ISSN: 1995-4212
Electronic ISSN: 1995-4220
DOI
https://doi.org/10.1134/S1995421223010264

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