ANALYSIS OF STABILITY OF NONLINEAR THERMAL PROCESSES IN ENVIRONMENTS WITH DIFFERENT SPATIAL STRUCTURES OF DISTURBANCE

• Date: 2023
• Author Affiliations: D. Bondarenko — Institute of Renewable Energy NAS of Ukraine, Kyiv, Ukraine.; S. Matyakh — Institute of Renewable Energy NAS of Ukraine, Kyiv, Ukraine; National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv, Ukraine.; V. Rieztsov — Institute of Renewable Energy NAS of Ukraine, Kyiv, Ukraine.; Т. Surzhyk — Institute of Renewable Energy NAS of Ukraine, Kyiv, Ukraine.; I. Sheiko — Institute of Renewable Energy NAS of Ukraine, Kyiv, Ukraine.
• Keywords: keywords
• Main Authors: Bondarenko, D., Matyakh, S., Rieztsov , V., Surzhyk, Т., Sheiko, I.
• Format: Article
• Language: Ukrainian
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2023
• Subjects: stability analysis; disturbance analysis; thermal conductivity; partial differential equations; synergistic analysis
• Online Access: https://ve.org.ua/index.php/journal/article/view/383
• Journal Title: Vidnovluvana energetika

A feature of the processes of interaction of solar radiation with materials used in solar energy and photoenergy is the non-linear dependence of the density of heat generation on temperature. In the presence of spatial disturbances due to the development of instability, which is analyzed in this work on the basis of a synergistic methodology, this can lead to an increase in the amplitude of disturbances, in particular, fluctuations in the magnitude of disturbances over time. As a result, the energy efficiency of the solar energy conversion process, resource and reliability of the corresponding equipment decreases. Therefore, stability analysis has not so much theoretical, but also practical significance in the design of solar energy systems, the selection of appropriate functional materials and operating technologies. Bibl. 3.