Mathematical modeling of heat and mass transfer during evaporation of saline solutions: Single droplet, droplet group, and spray; International Journal of Heat and Mass Transfer; Vol. 266
| Parent link: | International Journal of Heat and Mass Transfer.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 266.— 2026.— Article number 128884, 19 p. |
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| Other Authors: | , , , |
| Summary: | Title screen The problem of freshwater scarcity is becoming increasingly acute in the modern world. Thermal methods provide high efficiency in terms of the specific volume of purified water obtained; however, they require substantial energy input associated with fuel combustion to ensure phase transformations of contaminated liquids. The issue of energy efficiency is particularly critical in the case of salt solutions. In the present study, a predictive mathematical framework is developed to enable rational control of the energy load in heating chambers used for thermal desalination. The framework describes heat and mass transfer processes during evaporation of salt solution droplets and includes an algorithm for solving the coupled system of equations governing energy transfer, diffusion of solution components in the liquid phase during salt crystallization, and the motion of salt solution droplets within a spray. The results of experimental and theoretical investigations of water evaporation characteristics from salt solution droplets are presented, using NaCl, NH₄Cl, and CuSO₄ solutions as representative examples. The initial salt concentrations ranged from 1 to 20 wt.%. Low salt concentrations (up to 5 wt.%) correspond to salinity levels typical of seas and oceans, whereas higher concentrations (up to 20 wt.%) are characteristic of salt solutions encountered in thermal liquid treatment units at specific industrial stages. The connection of high-temperature and solar driven interfacial droplet evaporation and discussed. A concept for transferring modeling results from single droplets to a spray is proposed. Practical recommendations are formulated to achieve maximum efficiency of thermal desalination processes in heating chambers in terms of evaporation time and energy consumption Текстовый файл AM_Agreement |
| Language: | English |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://doi.org/10.1016/j.ijheatmasstransfer.2026.128884 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=686542 |