Influence of the Metal Surface Texture on the Possibility of Controlling the Phase Transition of Water Droplets in the Single-Phase Regime; Applied Sciences; Vol. 12, iss. 23
| Parent link: | Applied Sciences Vol. 12, iss. 23.— 2022.— [12155, 17 p.] |
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| Corporate Authors: | , |
| Andre forfattere: | , , , , , |
| Summary: | Title screen We experimentally studied the influence of the texture of copper and steel surfaces on the possibility of controlling the phase transition of water droplets in the single-phase regime. The texture of metals was formed by polishing and grinding, which corresponded to the finishing treatment of heat transfer surfaces in cooling systems for energy-saturated equipment. The samples were studied by microscopy and profilometry. The texture was estimated by three-dimensional roughness parameters. It was found that, with a 2–2.5-fold increase in roughness, the wetting of copper deteriorates (the contact angle increases from 66° to 93°), whereas the wetting of steel improves (the contact angle decreases from 89° to 71°). It was experimentally proven that, among the two main factors that affect the spreading diameter (wetting and roughness), wetting is the most significant. A hypothesis was formulated regarding the reason for the increase in the contact angle of 7–10° and the drop in the decrease rate of the contact diameter during the transition from the pinning to the mixed stage of droplet evaporation. It was found that an increase in the surface area of 0.1% leads to an increase in the total droplet evaporation rate of 4–6.5%. |
| Sprog: | engelsk |
| Udgivet: |
2022
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| Fag: | |
| Online adgang: | http://earchive.tpu.ru/handle/11683/74786 https://doi.org/10.3390/app122312155 |
| Format: | MixedMaterials Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668594 |
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| 200 | 1 | |a Influence of the Metal Surface Texture on the Possibility of Controlling the Phase Transition of Water Droplets in the Single-Phase Regime |f D. O. Glushkov, E. G. Orlova, A. G. Islamova [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 53 tit.] | ||
| 330 | |a We experimentally studied the influence of the texture of copper and steel surfaces on the possibility of controlling the phase transition of water droplets in the single-phase regime. The texture of metals was formed by polishing and grinding, which corresponded to the finishing treatment of heat transfer surfaces in cooling systems for energy-saturated equipment. The samples were studied by microscopy and profilometry. The texture was estimated by three-dimensional roughness parameters. It was found that, with a 2–2.5-fold increase in roughness, the wetting of copper deteriorates (the contact angle increases from 66° to 93°), whereas the wetting of steel improves (the contact angle decreases from 89° to 71°). It was experimentally proven that, among the two main factors that affect the spreading diameter (wetting and roughness), wetting is the most significant. A hypothesis was formulated regarding the reason for the increase in the contact angle of 7–10° and the drop in the decrease rate of the contact diameter during the transition from the pinning to the mixed stage of droplet evaporation. It was found that an increase in the surface area of 0.1% leads to an increase in the total droplet evaporation rate of 4–6.5%. | ||
| 461 | |t Applied Sciences | ||
| 463 | |t Vol. 12, iss. 23 |v [12155, 17 p.] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a wetting | |
| 610 | 1 | |a evaporation time | |
| 610 | 1 | |a evaporation rate | |
| 610 | 1 | |a roughness | |
| 610 | 1 | |a texture | |
| 610 | 1 | |a смачивание | |
| 610 | 1 | |a время | |
| 610 | 1 | |a испарение | |
| 610 | 1 | |a скорость | |
| 610 | 1 | |a шероховатости | |
| 610 | 1 | |a текстура | |
| 701 | 1 | |a Glushkov |b D. O. |c specialist in the field of power engineering |c Professor, Director of the ISHFVP of the Tomsk Polytechnic University, Doctor of Technical Sciences |f 1988- |g Dmitry Olegovich |3 (RuTPU)RU\TPU\pers\32471 |9 16419 | |
| 701 | 1 | |a Orlova |b E. G. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Evgeniya Georgievna |3 (RuTPU)RU\TPU\pers\34157 |9 17697 | |
| 701 | 1 | |a Islamova |b A. G. |c specialist in the field of thermal engineering |c Engineer of Tomsk Polytechnic University |f 1993- |g Anastasiya Gomilievna |3 (RuTPU)RU\TPU\pers\37306 | |
| 701 | 1 | |a Nikitin |b D. S. |c specialist in the field of electric power engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1991- |g Dmitry Sergeevich |3 (RuTPU)RU\TPU\pers\35633 |9 18802 | |
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