| 000 | 03429nlm1a2200421 4500 | ||
|---|---|---|---|
| 001 | 660579 | ||
| 005 | 20231030041715.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\30116 | ||
| 090 | _a660579 | ||
| 100 | _a20190806a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aGB | ||
| 135 | _adrnn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aFree Solution Convection at Non-Isothermal Evaporation of Aqueous Salt Solution on a Micro-Structured Wall _fS. Ya. Misyura |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 66 tit.] | ||
| 330 | _aEvaporation and heat transfer of layers of aqueous salt solutions have been studied. The behavior of salt solutions is compared for a smooth and micro-structured wall with a rectangular profile. The evaporation rate of the salt solution on the structured wall is 20–30% higher than on the smooth one at high salt concentration. Previously, it was thought that the heat transfer for solutions can be calculated for thin layers and films without taking into account the natural convection in liquid. In this paper, the liquid free convection is shown to play a key role. A simple model linking the solutal and the thermal Marangoni numbers and the Peclet number with free convection of the liquid on a hot structured wall is considered. For correct simulation of the non-isothermal heat and mass transfer, it is necessary to take into account local characteristics of thermal and velocity fields inside a layer of the salt solution, as well as to determine the average characteristic scales of circulation into the liquid. To simplify the analysis it is possible to effectively consider four types of characteristic convective scales, the role of which depends on the thickness and diameter of the solution layer, as well as on the wall temperature. The strong influence of free convection in a thin layer of the solution is extremely important for accurate modeling of a wide range of modern technologies. Intensification of heat transfer and evaporation due to the use of a structured wall can be applied in heat exchangers, to improve efficiency in desalination of water, in energy technologies (e.g., in heat absorption pumps), as well as in chemical technologies. | ||
| 461 | _tNanoscale and Microscale Thermophysical Engineering | ||
| 463 |
_tVol. 19, iss. 1 _v[P. 48-66] _d2019 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _astructured surface | |
| 610 | 1 | _aevaporation rate | |
| 610 | 1 | _aheat transfer | |
| 610 | 1 | _aaqueous salt solution | |
| 610 | 1 | _afree convection | |
| 610 | 1 | _aводные растворы | |
| 610 | 1 | _aиспарение | |
| 610 | 1 | _aтеплообмен | |
| 610 | 1 | _aконвекция | |
| 700 | 1 |
_aMisyura _bS. Ya. _cspecialist in the field of power engineering _cleading researcher of Tomsk Polytechnic University, candidate of technical sciences _f1964- _gSergey Yakovlevich _2stltpush _3(RuTPU)RU\TPU\pers\39641 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20190806 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1080/15567265.2018.1551448 | |
| 942 | _cCF | ||