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Enhancement of Heat Transfer during Boiling on Surfaces with Hydrophobic Cavitiesстатья
- Авторы: Chinnov E.A., Kmel Ya, Vladimirov V.Yu, Emelyanenko K.A., Emelyanenko A.M., Boynovich L.B.
- Журнал: High Temperature
- Том: 62
- Номер: 2
- Год издания: 2024
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 199
- Последняя страница: 206
- DOI: 10.1134/s0018151x24700391
- Аннотация: A study was carried out on the process of boiling water in a large volume of liquid at atmospheric pressure on surfaces with cavities obtained by laser ablation and hydrophobized by chemisorption of fluorinated methoxysilane from vapors at a temperature of 105°C. The results of the experiment are analyzed and compared with previously obtained and literary data. The influence of the size, shape, and location of hydrophobic cavities is studied on the intensity of heat transfer during boiling. It is shown that the main parameter determining the intensity of heat transfer is the specific density of hydrophobized cavities on the heating surface, or the step between them. The shape and size of the cavities do not have a significant effect on heat transfer. Removal of the water repellent from the cavities leads to a significant reduction in the intensity of heat transfer.
- Добавил в систему: Емельяненко Александр Михайлович