可再生能源2025,Vol.43Issue(6):755-763,9.
基于CFD的太阳能再生器瞬/稳态模拟分析
CFD-based instantaneous/steady-state simulation analysis of solar regenerator
摘要
Abstract
In response to the national strategy of"carbon peaking and carbon neutrality",our research team is committed to developing more energy-saving and emission-reducing air-conditioning systems.In this paper,a mathematical and physical model of solar solution regeneration is established,the grid independence of the model is verified,and the accuracy of the model is verified by experiments,and then the instantaneous/steady state of the solution regeneration process is simulated and its heat and mass transfer characteristics are analyzed.The numerical simulation results show that the regenerated mass transfer mainly occurs at the gas-liquid interface,and the water is transferred to the main stream region of the regenerated air in the form of convective diffusion.In the initial phase of the solution falling film,when the temperature of the solution is low,the reverse regeneration process may occur.In the study of steady-state heat and mass transfer,the influence of various parameters on the regeneration performance of the device is explored through the change of regeneration efficiency,in which the increase of air/solution temperature has a positive impact on the regeneration performance of the device,and the increase of solar radiation as the energy source of the regeneration system can increase the regeneration efficiency by nearly 1.5 times.The increase in air moisture content and solution concentration will lead to a decrease in regeneration performance,which can reduce the regeneration efficiency by up to 80%.关键词
CFD模拟/溶液除湿/太阳能/传热传质Key words
CFD simulation/solution dehumidification/solar energy/heat and mass transfer分类
能源与动力引用本文复制引用
彭冬根,彭效,詹镇通..基于CFD的太阳能再生器瞬/稳态模拟分析[J].可再生能源,2025,43(6):755-763,9.基金项目
国家自然科学基金项目(51766010) (51766010)
江西省研究生创新专项资金资助项目(YC2024-S068). (YC2024-S068)