太阳能烟囱卤水浓缩系统在当雄错盐湖的应用

A novel solar chimney brine concentration system is proposed for improving the brine concentration rate. A transient thermodynamic model of the system is established. The brine evaporation rate of the system is compared with that of a conventional solar pond by using the weather data of Dangxiongcuo salt lake. Furthermore, the influence of meteorological factors on the evaporation process of the system at different time scales is explored using correlation analysis and multiple regression models. The results show that, compared with the conventional method, the time required for brine concentration can be reduced by 24.4% by applying the solar chimney brine concentration system. At the monthly scale, both the evaporation rate and water temperature are primarily influenced by radiation intensity; at the daily scale, the evaporation rate is mainly affected by the radiation intensity, while the brine temperature shows significant correlations with the ambient temperature.