A new solar cascade regeneration system was developed with the goal of producing a reliable and energy-efficient liquid desiccant regeneration process. This process is specifically designed for liquid desiccant air-conditioning systems in severely hot and humid climates. The regeneration characteristic of this new system is researched and compared with the conventional hollow fiber membrane thermal regeneration system. Results show that the increase of desiccant concentration difference between regenerate and dilute solutions in electrodialysis regenerator will decrease the required heating temperature and energy consumption of the new system, which means the new system can conveniently control the required heating temperature to meet the variable environment condition. With the same environment condition, the new system has lower required heating temperature and energy consumption than the conventional hollow fiber membrane thermal regeneration system. Among all simulation conditions, compared with the conventional hollow fiber membrane thermal regeneration system, the largest heating temperature drop of 7 °C and the highest energy-saving of 14% can be achieved when the new system is applied. It can be concluded that the new solar cascade regeneration system can work stably and reliably under the severe hot and humid climate as its low heating temperature requirement and energy-saving potential.

开发了一种新的太阳能级联再生系统，目标是实现可靠且节能的液体干燥剂再生过程。该工艺专为在极端炎热和潮湿气候下的液体干燥剂空调系统而设计。研究了这种新系统的再生特性，并与传统的中空纤维膜热再生系统进行了比较。结果表明，电渗析蓄热器中再生液与稀溶液之间干燥剂浓度差的增加会降低新系统所需的加热温度和能耗，这意味着新系统可以方便地控制所需的加热温度以满足多变的环境条件。在同样的环境条件下，与传统的中空纤维膜热再生系统相比，新系统所需的加热温度和能耗更低。在所有模拟工况中，与传统中空纤维膜热再生系统相比，新系统应用时加热温降最大7℃，最高节能14%。可以得出结论，新型太阳能梯级再生系统以其较低的加热温度要求和节能潜力，可以在恶劣的湿热气候下稳定可靠地工作。应用新系统，最大加热温降7℃，最高节能14%。可以得出结论，新型太阳能梯级再生系统以其较低的加热温度要求和节能潜力，可以在恶劣的湿热气候下稳定可靠地工作。应用新系统，最大加热温降7℃，最高节能14%。可以得出结论，新型太阳能梯级再生系统以其较低的加热温度要求和节能潜力，可以在恶劣的湿热气候下稳定可靠地工作。