| Issue |
E3S Web of Conf.
Volume 390, 2023
VIII International Conference on Advanced Agritechnologies, Environmental Engineering and Sustainable Development (AGRITECH-VIII 2023)
|
|
|---|---|---|
| Article Number | 02012 | |
| Number of page(s) | 6 | |
| Section | Innovative Development of Sustainable Systems of Agrarian-and-Food Production | |
| DOI | https://doi.org/10.1051/e3sconf/202339002012 | |
| Published online | 01 June 2023 | |
Determination of pressure in a flat channel of a solar water heater when water is freezing
1 Moscow State Technical University named after N.E. Bauman, 2nd Baumanskaya st., 5, building 1, 105005, Moscow, Russia
2 Karshi State University, 17, Kucha-bag. street, Karshi, 180103, Uzbekistan
* Corresponding author: utaev.s@list.ru
The article considers the problem of modeling a flat channel of a rectangular section of a solar water heater filled with water when it freezes to estimate the pressure in the channel. It is assumed that when water freezes, due to the density difference between the solid and liquid phases, the volume it occupies in the channel changes, and under the influence of the pressure difference between the external environment and the internal region, the channel walls are deformed. The theory of elastic cylindrical bending of a two-layer plate is used for modeling. Calculation relations are obtained for determining the pressure in the channel depending on the thickness of the freezing ice. An example of calculating the pressure in a channel of rectangular cross section when water freezes is given.
© The Authors, published by EDP Sciences, 2023
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